java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-acfac67 [2018-01-28 22:50:04,956 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-28 22:50:04,957 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-28 22:50:04,969 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-28 22:50:04,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-28 22:50:04,971 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-28 22:50:04,972 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-28 22:50:04,973 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-28 22:50:04,975 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-28 22:50:04,975 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-28 22:50:04,976 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-28 22:50:04,976 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-28 22:50:04,977 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-28 22:50:04,977 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-28 22:50:04,978 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-28 22:50:04,981 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-28 22:50:04,983 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-28 22:50:04,985 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-28 22:50:04,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-28 22:50:04,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-28 22:50:04,990 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-28 22:50:04,990 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-28 22:50:04,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-28 22:50:04,991 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-28 22:50:04,992 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-28 22:50:04,993 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-28 22:50:04,994 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-28 22:50:04,994 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-28 22:50:04,994 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-28 22:50:04,995 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-28 22:50:04,995 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-28 22:50:04,996 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-28 22:50:05,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-28 22:50:05,006 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-28 22:50:05,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-28 22:50:05,007 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-28 22:50:05,007 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-28 22:50:05,007 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-28 22:50:05,007 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-28 22:50:05,008 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-28 22:50:05,008 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-28 22:50:05,008 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-28 22:50:05,009 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-28 22:50:05,009 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-28 22:50:05,009 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-28 22:50:05,009 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-28 22:50:05,009 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-28 22:50:05,010 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-28 22:50:05,010 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-28 22:50:05,010 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-28 22:50:05,010 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-28 22:50:05,010 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-28 22:50:05,011 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-28 22:50:05,011 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-28 22:50:05,011 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-28 22:50:05,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-28 22:50:05,011 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-28 22:50:05,012 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-28 22:50:05,012 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-28 22:50:05,012 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-28 22:50:05,012 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-28 22:50:05,012 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-28 22:50:05,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-28 22:50:05,013 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-28 22:50:05,014 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-28 22:50:05,014 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-28 22:50:05,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-28 22:50:05,062 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-28 22:50:05,066 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-28 22:50:05,067 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-28 22:50:05,068 INFO L276 PluginConnector]: CDTParser initialized [2018-01-28 22:50:05,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01_true-unreach-call_true-valid-memsafety.i [2018-01-28 22:50:05,284 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-28 22:50:05,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-28 22:50:05,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-28 22:50:05,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-28 22:50:05,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-28 22:50:05,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c6157ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05, skipping insertion in model container [2018-01-28 22:50:05,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,313 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-28 22:50:05,354 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-28 22:50:05,489 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-28 22:50:05,514 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-28 22:50:05,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05 WrapperNode [2018-01-28 22:50:05,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-28 22:50:05,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-28 22:50:05,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-28 22:50:05,526 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-28 22:50:05,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (1/1) ... [2018-01-28 22:50:05,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-28 22:50:05,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-28 22:50:05,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-28 22:50:05,590 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-28 22:50:05,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (1/1) ... No working directory specified, using /storage/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 [2018-01-28 22:50:05,643 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-28 22:50:05,643 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-28 22:50:05,643 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-28 22:50:05,644 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-28 22:50:05,644 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-28 22:50:05,644 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-28 22:50:05,644 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-28 22:50:05,644 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-28 22:50:05,644 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-28 22:50:05,644 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-28 22:50:05,644 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-28 22:50:05,645 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-28 22:50:05,645 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-28 22:50:05,645 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-28 22:50:05,645 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-28 22:50:06,369 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-28 22:50:06,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 10:50:06 BoogieIcfgContainer [2018-01-28 22:50:06,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-28 22:50:06,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-28 22:50:06,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-28 22:50:06,374 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-28 22:50:06,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 10:50:05" (1/3) ... [2018-01-28 22:50:06,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258700a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 10:50:06, skipping insertion in model container [2018-01-28 22:50:06,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:50:05" (2/3) ... [2018-01-28 22:50:06,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258700a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 10:50:06, skipping insertion in model container [2018-01-28 22:50:06,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 10:50:06" (3/3) ... [2018-01-28 22:50:06,378 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-01_true-unreach-call_true-valid-memsafety.i [2018-01-28 22:50:06,385 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-28 22:50:06,392 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2018-01-28 22:50:06,435 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-28 22:50:06,435 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-28 22:50:06,435 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-28 22:50:06,436 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-28 22:50:06,436 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-28 22:50:06,436 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-28 22:50:06,436 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-28 22:50:06,436 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-28 22:50:06,437 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-28 22:50:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2018-01-28 22:50:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-28 22:50:06,464 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:06,465 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:06,466 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:06,470 INFO L82 PathProgramCache]: Analyzing trace with hash -558205767, now seen corresponding path program 1 times [2018-01-28 22:50:06,471 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:06,472 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:06,531 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:06,531 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:06,531 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:06,586 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:06,738 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:06,738 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 22:50:06,740 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-28 22:50:06,751 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-28 22:50:06,751 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-28 22:50:06,753 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2018-01-28 22:50:07,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:07,203 INFO L93 Difference]: Finished difference Result 510 states and 637 transitions. [2018-01-28 22:50:07,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-28 22:50:07,205 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-28 22:50:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:07,219 INFO L225 Difference]: With dead ends: 510 [2018-01-28 22:50:07,219 INFO L226 Difference]: Without dead ends: 245 [2018-01-28 22:50:07,225 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:07,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-01-28 22:50:07,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 212. [2018-01-28 22:50:07,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-01-28 22:50:07,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 223 transitions. [2018-01-28 22:50:07,274 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 223 transitions. Word has length 9 [2018-01-28 22:50:07,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:07,275 INFO L432 AbstractCegarLoop]: Abstraction has 212 states and 223 transitions. [2018-01-28 22:50:07,275 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-28 22:50:07,275 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 223 transitions. [2018-01-28 22:50:07,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-28 22:50:07,275 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:07,275 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:07,276 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:07,276 INFO L82 PathProgramCache]: Analyzing trace with hash -558205766, now seen corresponding path program 1 times [2018-01-28 22:50:07,276 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:07,276 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:07,277 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:07,277 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:07,277 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:07,292 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:07,376 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:07,376 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 22:50:07,377 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-28 22:50:07,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-28 22:50:07,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-28 22:50:07,378 INFO L87 Difference]: Start difference. First operand 212 states and 223 transitions. Second operand 4 states. [2018-01-28 22:50:07,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:07,574 INFO L93 Difference]: Finished difference Result 249 states and 259 transitions. [2018-01-28 22:50:07,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-28 22:50:07,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-28 22:50:07,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:07,577 INFO L225 Difference]: With dead ends: 249 [2018-01-28 22:50:07,577 INFO L226 Difference]: Without dead ends: 237 [2018-01-28 22:50:07,578 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:07,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-01-28 22:50:07,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 226. [2018-01-28 22:50:07,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-01-28 22:50:07,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 244 transitions. [2018-01-28 22:50:07,597 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 244 transitions. Word has length 9 [2018-01-28 22:50:07,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:07,598 INFO L432 AbstractCegarLoop]: Abstraction has 226 states and 244 transitions. [2018-01-28 22:50:07,598 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-28 22:50:07,598 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 244 transitions. [2018-01-28 22:50:07,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-28 22:50:07,599 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:07,599 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:07,599 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:07,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1861640795, now seen corresponding path program 1 times [2018-01-28 22:50:07,600 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:07,600 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:07,601 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:07,602 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:07,602 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:07,628 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:07,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:07,691 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:07,691 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-28 22:50:07,691 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:07,692 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:07,692 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:07,692 INFO L87 Difference]: Start difference. First operand 226 states and 244 transitions. Second operand 5 states. [2018-01-28 22:50:08,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:08,270 INFO L93 Difference]: Finished difference Result 389 states and 415 transitions. [2018-01-28 22:50:08,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 22:50:08,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-28 22:50:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:08,274 INFO L225 Difference]: With dead ends: 389 [2018-01-28 22:50:08,274 INFO L226 Difference]: Without dead ends: 388 [2018-01-28 22:50:08,275 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:08,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-01-28 22:50:08,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 225. [2018-01-28 22:50:08,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-01-28 22:50:08,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 243 transitions. [2018-01-28 22:50:08,293 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 243 transitions. Word has length 20 [2018-01-28 22:50:08,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:08,294 INFO L432 AbstractCegarLoop]: Abstraction has 225 states and 243 transitions. [2018-01-28 22:50:08,294 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 243 transitions. [2018-01-28 22:50:08,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-28 22:50:08,295 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:08,295 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:08,295 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:08,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1861640794, now seen corresponding path program 1 times [2018-01-28 22:50:08,295 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:08,295 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:08,297 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:08,297 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:08,297 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:08,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:08,317 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:08,389 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:08,390 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-28 22:50:08,390 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:08,390 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:08,390 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:08,390 INFO L87 Difference]: Start difference. First operand 225 states and 243 transitions. Second operand 5 states. [2018-01-28 22:50:08,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:08,663 INFO L93 Difference]: Finished difference Result 421 states and 456 transitions. [2018-01-28 22:50:08,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 22:50:08,664 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-28 22:50:08,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:08,666 INFO L225 Difference]: With dead ends: 421 [2018-01-28 22:50:08,666 INFO L226 Difference]: Without dead ends: 420 [2018-01-28 22:50:08,666 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:08,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2018-01-28 22:50:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 224. [2018-01-28 22:50:08,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-01-28 22:50:08,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2018-01-28 22:50:08,678 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 20 [2018-01-28 22:50:08,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:08,679 INFO L432 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2018-01-28 22:50:08,679 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:08,679 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2018-01-28 22:50:08,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-28 22:50:08,680 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:08,680 INFO L330 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] [2018-01-28 22:50:08,680 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:08,680 INFO L82 PathProgramCache]: Analyzing trace with hash 771793270, now seen corresponding path program 1 times [2018-01-28 22:50:08,680 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:08,680 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:08,681 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:08,681 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:08,681 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:08,704 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:08,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:08,849 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:08,849 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-28 22:50:08,850 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-28 22:50:08,850 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-28 22:50:08,850 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:08,850 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 8 states. [2018-01-28 22:50:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:09,287 INFO L93 Difference]: Finished difference Result 391 states and 416 transitions. [2018-01-28 22:50:09,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-28 22:50:09,288 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-28 22:50:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:09,289 INFO L225 Difference]: With dead ends: 391 [2018-01-28 22:50:09,289 INFO L226 Difference]: Without dead ends: 390 [2018-01-28 22:50:09,290 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-28 22:50:09,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2018-01-28 22:50:09,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 223. [2018-01-28 22:50:09,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-01-28 22:50:09,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 241 transitions. [2018-01-28 22:50:09,298 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 241 transitions. Word has length 23 [2018-01-28 22:50:09,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:09,299 INFO L432 AbstractCegarLoop]: Abstraction has 223 states and 241 transitions. [2018-01-28 22:50:09,299 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-28 22:50:09,299 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 241 transitions. [2018-01-28 22:50:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-28 22:50:09,300 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:09,300 INFO L330 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] [2018-01-28 22:50:09,300 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:09,300 INFO L82 PathProgramCache]: Analyzing trace with hash 771793271, now seen corresponding path program 1 times [2018-01-28 22:50:09,300 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:09,300 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:09,301 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:09,301 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:09,302 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:09,318 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:09,464 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:09,464 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-28 22:50:09,465 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-28 22:50:09,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-28 22:50:09,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:09,465 INFO L87 Difference]: Start difference. First operand 223 states and 241 transitions. Second operand 8 states. [2018-01-28 22:50:10,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:10,065 INFO L93 Difference]: Finished difference Result 392 states and 417 transitions. [2018-01-28 22:50:10,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-28 22:50:10,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-28 22:50:10,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:10,068 INFO L225 Difference]: With dead ends: 392 [2018-01-28 22:50:10,068 INFO L226 Difference]: Without dead ends: 391 [2018-01-28 22:50:10,068 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-28 22:50:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-01-28 22:50:10,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 222. [2018-01-28 22:50:10,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-01-28 22:50:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 240 transitions. [2018-01-28 22:50:10,080 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 240 transitions. Word has length 23 [2018-01-28 22:50:10,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:10,081 INFO L432 AbstractCegarLoop]: Abstraction has 222 states and 240 transitions. [2018-01-28 22:50:10,081 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-28 22:50:10,081 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 240 transitions. [2018-01-28 22:50:10,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-28 22:50:10,082 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:10,082 INFO L330 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] [2018-01-28 22:50:10,082 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:10,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1785350953, now seen corresponding path program 1 times [2018-01-28 22:50:10,083 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:10,083 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:10,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:10,084 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:10,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:10,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:10,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:10,152 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:10,152 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-28 22:50:10,152 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:10,152 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:10,152 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:10,152 INFO L87 Difference]: Start difference. First operand 222 states and 240 transitions. Second operand 5 states. [2018-01-28 22:50:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:10,344 INFO L93 Difference]: Finished difference Result 523 states and 563 transitions. [2018-01-28 22:50:10,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 22:50:10,344 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2018-01-28 22:50:10,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:10,345 INFO L225 Difference]: With dead ends: 523 [2018-01-28 22:50:10,345 INFO L226 Difference]: Without dead ends: 333 [2018-01-28 22:50:10,346 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:50:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-01-28 22:50:10,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 226. [2018-01-28 22:50:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-01-28 22:50:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 244 transitions. [2018-01-28 22:50:10,355 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 244 transitions. Word has length 33 [2018-01-28 22:50:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:10,356 INFO L432 AbstractCegarLoop]: Abstraction has 226 states and 244 transitions. [2018-01-28 22:50:10,356 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 244 transitions. [2018-01-28 22:50:10,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-28 22:50:10,357 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:10,357 INFO L330 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] [2018-01-28 22:50:10,357 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:10,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1598716860, now seen corresponding path program 1 times [2018-01-28 22:50:10,358 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:10,358 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:10,359 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:10,359 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:10,359 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:10,370 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:10,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:10,461 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:10,461 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-28 22:50:10,461 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:10,462 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:10,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:10,462 INFO L87 Difference]: Start difference. First operand 226 states and 244 transitions. Second operand 5 states. [2018-01-28 22:50:10,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:10,651 INFO L93 Difference]: Finished difference Result 250 states and 264 transitions. [2018-01-28 22:50:10,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-28 22:50:10,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-01-28 22:50:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:10,652 INFO L225 Difference]: With dead ends: 250 [2018-01-28 22:50:10,652 INFO L226 Difference]: Without dead ends: 237 [2018-01-28 22:50:10,653 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:10,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-01-28 22:50:10,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 218. [2018-01-28 22:50:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-01-28 22:50:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 236 transitions. [2018-01-28 22:50:10,662 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 236 transitions. Word has length 35 [2018-01-28 22:50:10,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:10,662 INFO L432 AbstractCegarLoop]: Abstraction has 218 states and 236 transitions. [2018-01-28 22:50:10,662 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 236 transitions. [2018-01-28 22:50:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-28 22:50:10,663 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:10,663 INFO L330 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] [2018-01-28 22:50:10,663 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:10,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1598716861, now seen corresponding path program 1 times [2018-01-28 22:50:10,664 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:10,664 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:10,665 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:10,665 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:10,665 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:10,678 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:10,786 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:10,786 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-28 22:50:10,786 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-28 22:50:10,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-28 22:50:10,787 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:50:10,787 INFO L87 Difference]: Start difference. First operand 218 states and 236 transitions. Second operand 7 states. [2018-01-28 22:50:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:11,063 INFO L93 Difference]: Finished difference Result 288 states and 302 transitions. [2018-01-28 22:50:11,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 22:50:11,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-01-28 22:50:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:11,065 INFO L225 Difference]: With dead ends: 288 [2018-01-28 22:50:11,066 INFO L226 Difference]: Without dead ends: 283 [2018-01-28 22:50:11,066 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-01-28 22:50:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-01-28 22:50:11,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 255. [2018-01-28 22:50:11,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-01-28 22:50:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 283 transitions. [2018-01-28 22:50:11,079 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 283 transitions. Word has length 35 [2018-01-28 22:50:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:11,080 INFO L432 AbstractCegarLoop]: Abstraction has 255 states and 283 transitions. [2018-01-28 22:50:11,080 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-28 22:50:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 283 transitions. [2018-01-28 22:50:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-28 22:50:11,081 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:11,081 INFO L330 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] [2018-01-28 22:50:11,081 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:11,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1231386657, now seen corresponding path program 1 times [2018-01-28 22:50:11,082 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:11,082 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:11,083 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:11,083 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:11,083 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:11,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:11,131 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:11,131 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-28 22:50:11,131 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:11,131 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:11,131 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:11,132 INFO L87 Difference]: Start difference. First operand 255 states and 283 transitions. Second operand 5 states. [2018-01-28 22:50:11,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:11,700 INFO L93 Difference]: Finished difference Result 365 states and 406 transitions. [2018-01-28 22:50:11,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-28 22:50:11,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-01-28 22:50:11,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:11,703 INFO L225 Difference]: With dead ends: 365 [2018-01-28 22:50:11,703 INFO L226 Difference]: Without dead ends: 364 [2018-01-28 22:50:11,703 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:50:11,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-01-28 22:50:11,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 254. [2018-01-28 22:50:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-01-28 22:50:11,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 281 transitions. [2018-01-28 22:50:11,720 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 281 transitions. Word has length 37 [2018-01-28 22:50:11,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:11,720 INFO L432 AbstractCegarLoop]: Abstraction has 254 states and 281 transitions. [2018-01-28 22:50:11,720 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:11,720 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 281 transitions. [2018-01-28 22:50:11,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-28 22:50:11,722 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:11,722 INFO L330 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] [2018-01-28 22:50:11,722 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:11,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1231386656, now seen corresponding path program 1 times [2018-01-28 22:50:11,723 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:11,723 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:11,724 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:11,724 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:11,724 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:11,735 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:11,842 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:11,842 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-28 22:50:11,842 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:11,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:11,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:11,843 INFO L87 Difference]: Start difference. First operand 254 states and 281 transitions. Second operand 5 states. [2018-01-28 22:50:12,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:12,254 INFO L93 Difference]: Finished difference Result 397 states and 444 transitions. [2018-01-28 22:50:12,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 22:50:12,255 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-01-28 22:50:12,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:12,257 INFO L225 Difference]: With dead ends: 397 [2018-01-28 22:50:12,257 INFO L226 Difference]: Without dead ends: 396 [2018-01-28 22:50:12,257 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:12,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2018-01-28 22:50:12,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 253. [2018-01-28 22:50:12,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-01-28 22:50:12,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 279 transitions. [2018-01-28 22:50:12,266 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 279 transitions. Word has length 37 [2018-01-28 22:50:12,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:12,267 INFO L432 AbstractCegarLoop]: Abstraction has 253 states and 279 transitions. [2018-01-28 22:50:12,267 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:12,267 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 279 transitions. [2018-01-28 22:50:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-01-28 22:50:12,268 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:12,268 INFO L330 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] [2018-01-28 22:50:12,268 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:12,269 INFO L82 PathProgramCache]: Analyzing trace with hash 970090532, now seen corresponding path program 1 times [2018-01-28 22:50:12,269 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:12,269 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:12,270 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:12,270 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:12,270 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:12,283 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:12,438 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:12,438 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-28 22:50:12,438 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-28 22:50:12,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-28 22:50:12,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-28 22:50:12,439 INFO L87 Difference]: Start difference. First operand 253 states and 279 transitions. Second operand 9 states. [2018-01-28 22:50:12,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:12,939 INFO L93 Difference]: Finished difference Result 263 states and 288 transitions. [2018-01-28 22:50:12,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-28 22:50:12,939 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-01-28 22:50:12,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:12,940 INFO L225 Difference]: With dead ends: 263 [2018-01-28 22:50:12,940 INFO L226 Difference]: Without dead ends: 262 [2018-01-28 22:50:12,940 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-01-28 22:50:12,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-01-28 22:50:12,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 252. [2018-01-28 22:50:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-01-28 22:50:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 278 transitions. [2018-01-28 22:50:12,949 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 278 transitions. Word has length 42 [2018-01-28 22:50:12,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:12,949 INFO L432 AbstractCegarLoop]: Abstraction has 252 states and 278 transitions. [2018-01-28 22:50:12,949 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-28 22:50:12,950 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 278 transitions. [2018-01-28 22:50:12,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-01-28 22:50:12,950 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:12,950 INFO L330 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] [2018-01-28 22:50:12,951 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:12,951 INFO L82 PathProgramCache]: Analyzing trace with hash 970090533, now seen corresponding path program 1 times [2018-01-28 22:50:12,951 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:12,951 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:12,952 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:12,952 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:12,952 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:12,962 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:13,134 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:13,134 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-28 22:50:13,134 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-28 22:50:13,135 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-28 22:50:13,135 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-01-28 22:50:13,135 INFO L87 Difference]: Start difference. First operand 252 states and 278 transitions. Second operand 10 states. [2018-01-28 22:50:13,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:13,688 INFO L93 Difference]: Finished difference Result 265 states and 290 transitions. [2018-01-28 22:50:13,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-28 22:50:13,689 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-01-28 22:50:13,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:13,690 INFO L225 Difference]: With dead ends: 265 [2018-01-28 22:50:13,690 INFO L226 Difference]: Without dead ends: 255 [2018-01-28 22:50:13,690 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2018-01-28 22:50:13,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-01-28 22:50:13,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 232. [2018-01-28 22:50:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-01-28 22:50:13,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 257 transitions. [2018-01-28 22:50:13,702 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 257 transitions. Word has length 42 [2018-01-28 22:50:13,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:13,702 INFO L432 AbstractCegarLoop]: Abstraction has 232 states and 257 transitions. [2018-01-28 22:50:13,702 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-28 22:50:13,703 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 257 transitions. [2018-01-28 22:50:13,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-28 22:50:13,703 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:13,704 INFO L330 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] [2018-01-28 22:50:13,704 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:13,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1062581366, now seen corresponding path program 1 times [2018-01-28 22:50:13,704 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:13,704 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:13,705 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:13,705 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:13,705 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:13,714 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:13,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:13,755 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:13,755 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-28 22:50:13,755 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:13,755 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:13,756 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:13,756 INFO L87 Difference]: Start difference. First operand 232 states and 257 transitions. Second operand 5 states. [2018-01-28 22:50:13,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:13,986 INFO L93 Difference]: Finished difference Result 322 states and 345 transitions. [2018-01-28 22:50:13,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-28 22:50:13,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-01-28 22:50:13,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:13,988 INFO L225 Difference]: With dead ends: 322 [2018-01-28 22:50:13,988 INFO L226 Difference]: Without dead ends: 258 [2018-01-28 22:50:13,989 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:50:13,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-01-28 22:50:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 232. [2018-01-28 22:50:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-01-28 22:50:14,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 255 transitions. [2018-01-28 22:50:14,004 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 255 transitions. Word has length 44 [2018-01-28 22:50:14,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:14,004 INFO L432 AbstractCegarLoop]: Abstraction has 232 states and 255 transitions. [2018-01-28 22:50:14,004 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:14,005 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 255 transitions. [2018-01-28 22:50:14,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-01-28 22:50:14,008 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:14,008 INFO L330 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, 1, 1, 1, 1] [2018-01-28 22:50:14,009 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:14,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1086536703, now seen corresponding path program 1 times [2018-01-28 22:50:14,009 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:14,009 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:14,010 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:14,010 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:14,010 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:14,021 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:14,156 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:14,156 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-28 22:50:14,156 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-28 22:50:14,156 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-28 22:50:14,157 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:14,157 INFO L87 Difference]: Start difference. First operand 232 states and 255 transitions. Second operand 8 states. [2018-01-28 22:50:14,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:14,577 INFO L93 Difference]: Finished difference Result 494 states and 543 transitions. [2018-01-28 22:50:14,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-28 22:50:14,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2018-01-28 22:50:14,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:14,579 INFO L225 Difference]: With dead ends: 494 [2018-01-28 22:50:14,579 INFO L226 Difference]: Without dead ends: 363 [2018-01-28 22:50:14,580 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-01-28 22:50:14,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2018-01-28 22:50:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 255. [2018-01-28 22:50:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-01-28 22:50:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 279 transitions. [2018-01-28 22:50:14,590 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 279 transitions. Word has length 53 [2018-01-28 22:50:14,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:14,590 INFO L432 AbstractCegarLoop]: Abstraction has 255 states and 279 transitions. [2018-01-28 22:50:14,590 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-28 22:50:14,590 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 279 transitions. [2018-01-28 22:50:14,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-01-28 22:50:14,590 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:14,591 INFO L330 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, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:14,591 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:14,591 INFO L82 PathProgramCache]: Analyzing trace with hash -449387012, now seen corresponding path program 1 times [2018-01-28 22:50:14,591 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:14,591 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:14,592 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:14,592 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:14,592 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:14,600 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:14,643 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:14,644 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-28 22:50:14,644 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:14,644 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:14,644 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:14,645 INFO L87 Difference]: Start difference. First operand 255 states and 279 transitions. Second operand 5 states. [2018-01-28 22:50:14,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:14,967 INFO L93 Difference]: Finished difference Result 398 states and 437 transitions. [2018-01-28 22:50:14,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 22:50:14,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2018-01-28 22:50:14,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:14,969 INFO L225 Difference]: With dead ends: 398 [2018-01-28 22:50:14,969 INFO L226 Difference]: Without dead ends: 397 [2018-01-28 22:50:14,969 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:14,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2018-01-28 22:50:14,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 254. [2018-01-28 22:50:14,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-01-28 22:50:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 278 transitions. [2018-01-28 22:50:14,984 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 278 transitions. Word has length 55 [2018-01-28 22:50:14,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:14,984 INFO L432 AbstractCegarLoop]: Abstraction has 254 states and 278 transitions. [2018-01-28 22:50:14,984 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:14,984 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 278 transitions. [2018-01-28 22:50:14,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-01-28 22:50:14,985 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:14,985 INFO L330 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, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:14,985 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:14,986 INFO L82 PathProgramCache]: Analyzing trace with hash -449387011, now seen corresponding path program 1 times [2018-01-28 22:50:14,986 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:14,986 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:14,987 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:14,987 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:14,987 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:14,999 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:15,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:15,089 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:15,089 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-28 22:50:15,089 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:15,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:15,090 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:15,090 INFO L87 Difference]: Start difference. First operand 254 states and 278 transitions. Second operand 5 states. [2018-01-28 22:50:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:15,392 INFO L93 Difference]: Finished difference Result 433 states and 478 transitions. [2018-01-28 22:50:15,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 22:50:15,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2018-01-28 22:50:15,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:15,394 INFO L225 Difference]: With dead ends: 433 [2018-01-28 22:50:15,394 INFO L226 Difference]: Without dead ends: 432 [2018-01-28 22:50:15,395 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:15,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2018-01-28 22:50:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 253. [2018-01-28 22:50:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-01-28 22:50:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 277 transitions. [2018-01-28 22:50:15,403 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 277 transitions. Word has length 55 [2018-01-28 22:50:15,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:15,403 INFO L432 AbstractCegarLoop]: Abstraction has 253 states and 277 transitions. [2018-01-28 22:50:15,403 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:15,403 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 277 transitions. [2018-01-28 22:50:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-01-28 22:50:15,404 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:15,404 INFO L330 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:15,404 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:15,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1370049695, now seen corresponding path program 1 times [2018-01-28 22:50:15,404 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:15,404 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:15,405 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:15,405 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:15,405 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:15,412 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:15,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:15,699 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-28 22:50:15,734 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-01-28 22:50:15,743 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:15,799 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-28 22:50:15,924 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-28 22:50:15,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-28 22:50:15,927 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:15,940 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:15,957 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-28 22:50:15,960 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-01-28 22:50:15,960 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:15,961 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:15,979 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:15,980 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2018-01-28 22:50:16,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-01-28 22:50:16,016 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-01-28 22:50:16,020 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,038 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-01-28 22:50:16,060 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-01-28 22:50:16,062 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,068 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,083 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,083 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:39 [2018-01-28 22:50:16,121 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2018-01-28 22:50:16,126 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,127 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,128 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-01-28 22:50:16,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,147 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,170 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 23 [2018-01-28 22:50:16,175 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,176 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,177 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-01-28 22:50:16,179 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,198 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,221 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,222 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:65, output treesize:57 [2018-01-28 22:50:16,332 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-01-28 22:50:16,336 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,337 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,338 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2018-01-28 22:50:16,339 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-01-28 22:50:16,377 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,378 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,379 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:16,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2018-01-28 22:50:16,381 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,387 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:16,394 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:71, output treesize:7 [2018-01-28 22:50:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:16,460 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-28 22:50:16,461 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 12 [2018-01-28 22:50:16,461 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-28 22:50:16,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-28 22:50:16,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-01-28 22:50:16,461 INFO L87 Difference]: Start difference. First operand 253 states and 277 transitions. Second operand 12 states. [2018-01-28 22:50:17,089 WARN L143 SmtUtils]: Spent 142ms on a formula simplification that was a NOOP. DAG size: 48 [2018-01-28 22:50:17,913 WARN L143 SmtUtils]: Spent 205ms on a formula simplification that was a NOOP. DAG size: 52 [2018-01-28 22:50:18,071 WARN L143 SmtUtils]: Spent 119ms on a formula simplification that was a NOOP. DAG size: 36 [2018-01-28 22:50:18,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:18,570 INFO L93 Difference]: Finished difference Result 522 states and 559 transitions. [2018-01-28 22:50:18,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-28 22:50:18,571 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-01-28 22:50:18,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:18,574 INFO L225 Difference]: With dead ends: 522 [2018-01-28 22:50:18,574 INFO L226 Difference]: Without dead ends: 416 [2018-01-28 22:50:18,575 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2018-01-28 22:50:18,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2018-01-28 22:50:18,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 297. [2018-01-28 22:50:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-01-28 22:50:18,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 330 transitions. [2018-01-28 22:50:18,597 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 330 transitions. Word has length 56 [2018-01-28 22:50:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:18,598 INFO L432 AbstractCegarLoop]: Abstraction has 297 states and 330 transitions. [2018-01-28 22:50:18,598 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-28 22:50:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 330 transitions. [2018-01-28 22:50:18,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-28 22:50:18,599 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:18,599 INFO L330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:18,599 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:18,599 INFO L82 PathProgramCache]: Analyzing trace with hash -275251959, now seen corresponding path program 1 times [2018-01-28 22:50:18,599 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:18,599 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:18,600 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:18,601 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:18,601 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:18,621 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:18,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:18,893 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:18,893 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-28 22:50:18,893 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-28 22:50:18,893 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-28 22:50:18,894 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-01-28 22:50:18,894 INFO L87 Difference]: Start difference. First operand 297 states and 330 transitions. Second operand 14 states. [2018-01-28 22:50:20,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:20,120 INFO L93 Difference]: Finished difference Result 321 states and 356 transitions. [2018-01-28 22:50:20,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-28 22:50:20,120 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 58 [2018-01-28 22:50:20,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:20,121 INFO L225 Difference]: With dead ends: 321 [2018-01-28 22:50:20,121 INFO L226 Difference]: Without dead ends: 320 [2018-01-28 22:50:20,122 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=634, Unknown=0, NotChecked=0, Total=812 [2018-01-28 22:50:20,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-01-28 22:50:20,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 296. [2018-01-28 22:50:20,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-01-28 22:50:20,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 329 transitions. [2018-01-28 22:50:20,144 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 329 transitions. Word has length 58 [2018-01-28 22:50:20,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:20,145 INFO L432 AbstractCegarLoop]: Abstraction has 296 states and 329 transitions. [2018-01-28 22:50:20,145 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-28 22:50:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 329 transitions. [2018-01-28 22:50:20,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-28 22:50:20,146 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:20,146 INFO L330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:20,146 INFO L371 AbstractCegarLoop]: === Iteration 20 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:20,146 INFO L82 PathProgramCache]: Analyzing trace with hash -275251958, now seen corresponding path program 1 times [2018-01-28 22:50:20,146 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:20,146 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:20,147 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:20,148 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:20,148 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:20,165 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:20,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:20,352 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:20,352 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-28 22:50:20,353 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-28 22:50:20,353 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-28 22:50:20,353 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:50:20,353 INFO L87 Difference]: Start difference. First operand 296 states and 329 transitions. Second operand 8 states. [2018-01-28 22:50:20,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:20,787 INFO L93 Difference]: Finished difference Result 323 states and 358 transitions. [2018-01-28 22:50:20,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-28 22:50:20,824 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2018-01-28 22:50:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:20,825 INFO L225 Difference]: With dead ends: 323 [2018-01-28 22:50:20,825 INFO L226 Difference]: Without dead ends: 322 [2018-01-28 22:50:20,825 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-28 22:50:20,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2018-01-28 22:50:20,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 295. [2018-01-28 22:50:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-01-28 22:50:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 328 transitions. [2018-01-28 22:50:20,839 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 328 transitions. Word has length 58 [2018-01-28 22:50:20,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:20,839 INFO L432 AbstractCegarLoop]: Abstraction has 295 states and 328 transitions. [2018-01-28 22:50:20,839 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-28 22:50:20,839 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 328 transitions. [2018-01-28 22:50:20,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-28 22:50:20,840 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:20,840 INFO L330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:20,840 INFO L371 AbstractCegarLoop]: === Iteration 21 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:20,840 INFO L82 PathProgramCache]: Analyzing trace with hash -574960962, now seen corresponding path program 1 times [2018-01-28 22:50:20,840 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:20,840 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:20,841 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:20,841 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:20,841 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:20,854 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:21,199 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:21,199 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-28 22:50:21,199 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-28 22:50:21,199 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-28 22:50:21,199 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-01-28 22:50:21,199 INFO L87 Difference]: Start difference. First operand 295 states and 328 transitions. Second operand 17 states. [2018-01-28 22:50:22,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:22,660 INFO L93 Difference]: Finished difference Result 646 states and 694 transitions. [2018-01-28 22:50:22,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-01-28 22:50:22,660 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2018-01-28 22:50:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:22,664 INFO L225 Difference]: With dead ends: 646 [2018-01-28 22:50:22,664 INFO L226 Difference]: Without dead ends: 643 [2018-01-28 22:50:22,665 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=443, Invalid=1197, Unknown=0, NotChecked=0, Total=1640 [2018-01-28 22:50:22,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2018-01-28 22:50:22,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 303. [2018-01-28 22:50:22,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2018-01-28 22:50:22,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 335 transitions. [2018-01-28 22:50:22,690 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 335 transitions. Word has length 58 [2018-01-28 22:50:22,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:22,690 INFO L432 AbstractCegarLoop]: Abstraction has 303 states and 335 transitions. [2018-01-28 22:50:22,690 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-28 22:50:22,690 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 335 transitions. [2018-01-28 22:50:22,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-28 22:50:22,691 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:22,691 INFO L330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:22,692 INFO L371 AbstractCegarLoop]: === Iteration 22 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:22,692 INFO L82 PathProgramCache]: Analyzing trace with hash -574960961, now seen corresponding path program 1 times [2018-01-28 22:50:22,692 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:22,692 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:22,693 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:22,693 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:22,693 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:22,709 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:23,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:23,195 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:23,195 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-28 22:50:23,195 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-28 22:50:23,196 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-28 22:50:23,196 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-01-28 22:50:23,196 INFO L87 Difference]: Start difference. First operand 303 states and 335 transitions. Second operand 17 states. [2018-01-28 22:50:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:24,954 INFO L93 Difference]: Finished difference Result 717 states and 758 transitions. [2018-01-28 22:50:24,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-01-28 22:50:24,954 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2018-01-28 22:50:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:24,956 INFO L225 Difference]: With dead ends: 717 [2018-01-28 22:50:24,956 INFO L226 Difference]: Without dead ends: 714 [2018-01-28 22:50:24,957 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=604, Invalid=1748, Unknown=0, NotChecked=0, Total=2352 [2018-01-28 22:50:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2018-01-28 22:50:24,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 312. [2018-01-28 22:50:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-01-28 22:50:24,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 343 transitions. [2018-01-28 22:50:24,980 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 343 transitions. Word has length 58 [2018-01-28 22:50:24,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:24,980 INFO L432 AbstractCegarLoop]: Abstraction has 312 states and 343 transitions. [2018-01-28 22:50:24,980 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-28 22:50:24,980 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 343 transitions. [2018-01-28 22:50:24,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-01-28 22:50:24,981 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:24,982 INFO L330 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:24,982 INFO L371 AbstractCegarLoop]: === Iteration 23 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:24,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1149553499, now seen corresponding path program 1 times [2018-01-28 22:50:24,982 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:24,982 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:24,983 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:24,983 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:24,984 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:24,994 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-28 22:50:25,106 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:25,106 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-28 22:50:25,106 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-28 22:50:25,106 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-28 22:50:25,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:50:25,107 INFO L87 Difference]: Start difference. First operand 312 states and 343 transitions. Second operand 7 states. [2018-01-28 22:50:25,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:25,288 INFO L93 Difference]: Finished difference Result 400 states and 438 transitions. [2018-01-28 22:50:25,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-28 22:50:25,288 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2018-01-28 22:50:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:25,290 INFO L225 Difference]: With dead ends: 400 [2018-01-28 22:50:25,290 INFO L226 Difference]: Without dead ends: 342 [2018-01-28 22:50:25,290 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-01-28 22:50:25,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-01-28 22:50:25,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 326. [2018-01-28 22:50:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2018-01-28 22:50:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 357 transitions. [2018-01-28 22:50:25,310 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 357 transitions. Word has length 65 [2018-01-28 22:50:25,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:25,310 INFO L432 AbstractCegarLoop]: Abstraction has 326 states and 357 transitions. [2018-01-28 22:50:25,310 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-28 22:50:25,310 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 357 transitions. [2018-01-28 22:50:25,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-01-28 22:50:25,311 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:25,312 INFO L330 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:25,312 INFO L371 AbstractCegarLoop]: === Iteration 24 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:25,312 INFO L82 PathProgramCache]: Analyzing trace with hash 801681271, now seen corresponding path program 1 times [2018-01-28 22:50:25,312 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:25,312 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:25,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:25,313 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:25,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:25,324 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:25,442 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:25,442 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-28 22:50:25,443 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-01-28 22:50:25,450 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:25,484 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-28 22:50:25,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-28 22:50:25,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:50:25,537 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:25,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:25,573 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-28 22:50:25,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:50:25,576 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:50:25,577 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:25,589 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:50:25,590 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-01-28 22:50:25,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-01-28 22:50:25,788 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:25,789 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:25,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 21 [2018-01-28 22:50:25,821 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-01-28 22:50:25,838 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:50:25,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-01-28 22:50:25,851 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:25,852 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:50:25,857 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 21 [2018-01-28 22:50:25,857 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-01-28 22:50:25,865 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:50:25,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:50:25,874 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:53, output treesize:18 [2018-01-28 22:50:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:25,956 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-28 22:50:25,956 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 17 [2018-01-28 22:50:25,956 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-28 22:50:25,957 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-28 22:50:25,957 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=227, Unknown=2, NotChecked=0, Total=272 [2018-01-28 22:50:25,957 INFO L87 Difference]: Start difference. First operand 326 states and 357 transitions. Second operand 17 states. [2018-01-28 22:50:27,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:27,041 INFO L93 Difference]: Finished difference Result 519 states and 544 transitions. [2018-01-28 22:50:27,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-01-28 22:50:27,042 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2018-01-28 22:50:27,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:27,044 INFO L225 Difference]: With dead ends: 519 [2018-01-28 22:50:27,044 INFO L226 Difference]: Without dead ends: 480 [2018-01-28 22:50:27,045 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=251, Invalid=1151, Unknown=4, NotChecked=0, Total=1406 [2018-01-28 22:50:27,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2018-01-28 22:50:27,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 358. [2018-01-28 22:50:27,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-01-28 22:50:27,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 396 transitions. [2018-01-28 22:50:27,065 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 396 transitions. Word has length 68 [2018-01-28 22:50:27,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:27,065 INFO L432 AbstractCegarLoop]: Abstraction has 358 states and 396 transitions. [2018-01-28 22:50:27,065 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-28 22:50:27,065 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 396 transitions. [2018-01-28 22:50:27,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-01-28 22:50:27,066 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:27,066 INFO L330 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:27,066 INFO L371 AbstractCegarLoop]: === Iteration 25 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:27,066 INFO L82 PathProgramCache]: Analyzing trace with hash -917682915, now seen corresponding path program 1 times [2018-01-28 22:50:27,066 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:27,066 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:27,067 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:27,067 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:27,067 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:27,078 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-28 22:50:27,173 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-28 22:50:27,173 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/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 [2018-01-28 22:50:27,181 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:27,207 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-28 22:50:27,270 WARN L1033 $PredicateComparison]: unable to prove that (exists ((main_~list~5.base Int)) (and (= 0 (select |c_old(#valid)| main_~list~5.base)) (= |c_#valid| (store |c_old(#valid)| main_~list~5.base 0)) (not (= 0 main_~list~5.base)))) is different from true [2018-01-28 22:50:27,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2018-01-28 22:50:27,318 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-28 22:50:27,318 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2018-01-28 22:50:27,318 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-28 22:50:27,318 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-28 22:50:27,319 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2018-01-28 22:50:27,319 INFO L87 Difference]: Start difference. First operand 358 states and 396 transitions. Second operand 10 states. [2018-01-28 22:50:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:27,750 INFO L93 Difference]: Finished difference Result 409 states and 447 transitions. [2018-01-28 22:50:27,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-28 22:50:27,750 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2018-01-28 22:50:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:27,752 INFO L225 Difference]: With dead ends: 409 [2018-01-28 22:50:27,752 INFO L226 Difference]: Without dead ends: 371 [2018-01-28 22:50:27,752 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=134, Unknown=1, NotChecked=24, Total=210 [2018-01-28 22:50:27,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-01-28 22:50:27,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 369. [2018-01-28 22:50:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2018-01-28 22:50:27,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 407 transitions. [2018-01-28 22:50:27,771 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 407 transitions. Word has length 69 [2018-01-28 22:50:27,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:27,771 INFO L432 AbstractCegarLoop]: Abstraction has 369 states and 407 transitions. [2018-01-28 22:50:27,771 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-28 22:50:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 407 transitions. [2018-01-28 22:50:27,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-01-28 22:50:27,773 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:27,773 INFO L330 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:27,773 INFO L371 AbstractCegarLoop]: === Iteration 26 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:27,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1092247912, now seen corresponding path program 1 times [2018-01-28 22:50:27,773 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:27,774 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:27,774 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:27,774 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:27,775 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:27,790 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-28 22:50:28,184 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:28,184 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-01-28 22:50:28,184 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-28 22:50:28,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-28 22:50:28,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2018-01-28 22:50:28,185 INFO L87 Difference]: Start difference. First operand 369 states and 407 transitions. Second operand 16 states. [2018-01-28 22:50:29,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:29,733 INFO L93 Difference]: Finished difference Result 622 states and 672 transitions. [2018-01-28 22:50:29,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-01-28 22:50:29,733 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 70 [2018-01-28 22:50:29,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:29,735 INFO L225 Difference]: With dead ends: 622 [2018-01-28 22:50:29,735 INFO L226 Difference]: Without dead ends: 621 [2018-01-28 22:50:29,736 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=406, Invalid=1234, Unknown=0, NotChecked=0, Total=1640 [2018-01-28 22:50:29,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2018-01-28 22:50:29,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 380. [2018-01-28 22:50:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-01-28 22:50:29,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 420 transitions. [2018-01-28 22:50:29,753 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 420 transitions. Word has length 70 [2018-01-28 22:50:29,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:29,754 INFO L432 AbstractCegarLoop]: Abstraction has 380 states and 420 transitions. [2018-01-28 22:50:29,754 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-28 22:50:29,754 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 420 transitions. [2018-01-28 22:50:29,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-01-28 22:50:29,754 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:29,755 INFO L330 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:29,755 INFO L371 AbstractCegarLoop]: === Iteration 27 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:29,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1092247911, now seen corresponding path program 1 times [2018-01-28 22:50:29,755 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:29,755 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:29,756 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:29,756 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:29,756 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:29,767 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:30,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-28 22:50:30,140 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:30,141 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-28 22:50:30,141 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-28 22:50:30,141 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-28 22:50:30,141 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-01-28 22:50:30,141 INFO L87 Difference]: Start difference. First operand 380 states and 420 transitions. Second operand 14 states. [2018-01-28 22:50:31,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:31,130 INFO L93 Difference]: Finished difference Result 620 states and 670 transitions. [2018-01-28 22:50:31,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-01-28 22:50:31,131 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2018-01-28 22:50:31,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:31,133 INFO L225 Difference]: With dead ends: 620 [2018-01-28 22:50:31,133 INFO L226 Difference]: Without dead ends: 617 [2018-01-28 22:50:31,134 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2018-01-28 22:50:31,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2018-01-28 22:50:31,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 389. [2018-01-28 22:50:31,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-01-28 22:50:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 428 transitions. [2018-01-28 22:50:31,151 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 428 transitions. Word has length 70 [2018-01-28 22:50:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:31,151 INFO L432 AbstractCegarLoop]: Abstraction has 389 states and 428 transitions. [2018-01-28 22:50:31,152 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-28 22:50:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 428 transitions. [2018-01-28 22:50:31,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-01-28 22:50:31,152 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:31,152 INFO L330 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:31,152 INFO L371 AbstractCegarLoop]: === Iteration 28 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:31,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1268239910, now seen corresponding path program 1 times [2018-01-28 22:50:31,153 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:31,153 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:31,153 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:31,153 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:31,153 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:31,164 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-28 22:50:31,259 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:31,259 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-28 22:50:31,259 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-28 22:50:31,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-28 22:50:31,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:50:31,260 INFO L87 Difference]: Start difference. First operand 389 states and 428 transitions. Second operand 7 states. [2018-01-28 22:50:31,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:31,573 INFO L93 Difference]: Finished difference Result 423 states and 457 transitions. [2018-01-28 22:50:31,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-28 22:50:31,574 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2018-01-28 22:50:31,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:31,575 INFO L225 Difference]: With dead ends: 423 [2018-01-28 22:50:31,575 INFO L226 Difference]: Without dead ends: 413 [2018-01-28 22:50:31,575 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-01-28 22:50:31,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-01-28 22:50:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 389. [2018-01-28 22:50:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-01-28 22:50:31,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 427 transitions. [2018-01-28 22:50:31,591 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 427 transitions. Word has length 74 [2018-01-28 22:50:31,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:31,592 INFO L432 AbstractCegarLoop]: Abstraction has 389 states and 427 transitions. [2018-01-28 22:50:31,592 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-28 22:50:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 427 transitions. [2018-01-28 22:50:31,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-01-28 22:50:31,592 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:31,592 INFO L330 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:31,593 INFO L371 AbstractCegarLoop]: === Iteration 29 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:31,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1144393985, now seen corresponding path program 1 times [2018-01-28 22:50:31,593 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:31,593 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:31,593 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:31,593 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:31,593 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:31,602 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-01-28 22:50:31,817 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:31,817 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-28 22:50:31,817 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-28 22:50:31,818 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-28 22:50:31,818 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-28 22:50:31,818 INFO L87 Difference]: Start difference. First operand 389 states and 427 transitions. Second operand 10 states. [2018-01-28 22:50:32,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:32,185 INFO L93 Difference]: Finished difference Result 795 states and 875 transitions. [2018-01-28 22:50:32,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-28 22:50:32,185 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-01-28 22:50:32,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:32,187 INFO L225 Difference]: With dead ends: 795 [2018-01-28 22:50:32,187 INFO L226 Difference]: Without dead ends: 540 [2018-01-28 22:50:32,187 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-01-28 22:50:32,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2018-01-28 22:50:32,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 350. [2018-01-28 22:50:32,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-01-28 22:50:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 386 transitions. [2018-01-28 22:50:32,202 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 386 transitions. Word has length 76 [2018-01-28 22:50:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:32,202 INFO L432 AbstractCegarLoop]: Abstraction has 350 states and 386 transitions. [2018-01-28 22:50:32,202 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-28 22:50:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 386 transitions. [2018-01-28 22:50:32,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-01-28 22:50:32,203 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:32,203 INFO L330 BasicCegarLoop]: trace histogram [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] [2018-01-28 22:50:32,203 INFO L371 AbstractCegarLoop]: === Iteration 30 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:32,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2091252941, now seen corresponding path program 1 times [2018-01-28 22:50:32,203 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:32,203 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:32,204 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:32,204 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:32,204 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:32,211 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:32,246 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:32,246 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:32,246 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 22:50:32,247 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-28 22:50:32,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-28 22:50:32,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-28 22:50:32,247 INFO L87 Difference]: Start difference. First operand 350 states and 386 transitions. Second operand 3 states. [2018-01-28 22:50:32,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:32,306 INFO L93 Difference]: Finished difference Result 776 states and 870 transitions. [2018-01-28 22:50:32,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-28 22:50:32,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2018-01-28 22:50:32,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:32,308 INFO L225 Difference]: With dead ends: 776 [2018-01-28 22:50:32,308 INFO L226 Difference]: Without dead ends: 566 [2018-01-28 22:50:32,308 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-28 22:50:32,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2018-01-28 22:50:32,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 421. [2018-01-28 22:50:32,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2018-01-28 22:50:32,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 472 transitions. [2018-01-28 22:50:32,326 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 472 transitions. Word has length 78 [2018-01-28 22:50:32,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:32,326 INFO L432 AbstractCegarLoop]: Abstraction has 421 states and 472 transitions. [2018-01-28 22:50:32,326 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-28 22:50:32,326 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 472 transitions. [2018-01-28 22:50:32,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-01-28 22:50:32,327 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:32,327 INFO L330 BasicCegarLoop]: trace histogram [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] [2018-01-28 22:50:32,327 INFO L371 AbstractCegarLoop]: === Iteration 31 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:32,327 INFO L82 PathProgramCache]: Analyzing trace with hash 657145555, now seen corresponding path program 1 times [2018-01-28 22:50:32,327 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:32,327 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:32,328 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:32,328 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:32,328 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:32,334 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:32,403 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:32,403 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:32,403 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-28 22:50:32,403 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-28 22:50:32,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-28 22:50:32,404 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-28 22:50:32,404 INFO L87 Difference]: Start difference. First operand 421 states and 472 transitions. Second operand 6 states. [2018-01-28 22:50:32,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:32,501 INFO L93 Difference]: Finished difference Result 658 states and 746 transitions. [2018-01-28 22:50:32,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-28 22:50:32,501 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-01-28 22:50:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:32,503 INFO L225 Difference]: With dead ends: 658 [2018-01-28 22:50:32,503 INFO L226 Difference]: Without dead ends: 391 [2018-01-28 22:50:32,503 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-01-28 22:50:32,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-01-28 22:50:32,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 337. [2018-01-28 22:50:32,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-01-28 22:50:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 367 transitions. [2018-01-28 22:50:32,518 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 367 transitions. Word has length 78 [2018-01-28 22:50:32,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:32,518 INFO L432 AbstractCegarLoop]: Abstraction has 337 states and 367 transitions. [2018-01-28 22:50:32,518 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-28 22:50:32,518 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 367 transitions. [2018-01-28 22:50:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-01-28 22:50:32,519 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:32,519 INFO L330 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:32,519 INFO L371 AbstractCegarLoop]: === Iteration 32 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:32,519 INFO L82 PathProgramCache]: Analyzing trace with hash 51191633, now seen corresponding path program 1 times [2018-01-28 22:50:32,519 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:32,519 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:32,520 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:32,520 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:32,520 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:32,528 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:32,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-28 22:50:32,831 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:32,831 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-01-28 22:50:32,831 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-28 22:50:32,831 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-28 22:50:32,831 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-01-28 22:50:32,832 INFO L87 Difference]: Start difference. First operand 337 states and 367 transitions. Second operand 15 states. [2018-01-28 22:50:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:33,489 INFO L93 Difference]: Finished difference Result 554 states and 599 transitions. [2018-01-28 22:50:33,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-28 22:50:33,490 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2018-01-28 22:50:33,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:33,492 INFO L225 Difference]: With dead ends: 554 [2018-01-28 22:50:33,492 INFO L226 Difference]: Without dead ends: 553 [2018-01-28 22:50:33,493 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2018-01-28 22:50:33,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2018-01-28 22:50:33,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 338. [2018-01-28 22:50:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-01-28 22:50:33,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 368 transitions. [2018-01-28 22:50:33,534 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 368 transitions. Word has length 80 [2018-01-28 22:50:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:33,534 INFO L432 AbstractCegarLoop]: Abstraction has 338 states and 368 transitions. [2018-01-28 22:50:33,534 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-28 22:50:33,535 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 368 transitions. [2018-01-28 22:50:33,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-01-28 22:50:33,535 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:33,536 INFO L330 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:33,536 INFO L371 AbstractCegarLoop]: === Iteration 33 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:33,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1642746388, now seen corresponding path program 1 times [2018-01-28 22:50:33,536 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:33,536 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:33,537 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:33,537 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:33,537 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:33,546 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:50:33,593 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:50:33,593 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-28 22:50:33,594 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-28 22:50:33,594 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-28 22:50:33,594 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:50:33,594 INFO L87 Difference]: Start difference. First operand 338 states and 368 transitions. Second operand 5 states. [2018-01-28 22:50:33,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:50:33,707 INFO L93 Difference]: Finished difference Result 579 states and 637 transitions. [2018-01-28 22:50:33,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-28 22:50:33,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2018-01-28 22:50:33,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:50:33,708 INFO L225 Difference]: With dead ends: 579 [2018-01-28 22:50:33,708 INFO L226 Difference]: Without dead ends: 359 [2018-01-28 22:50:33,709 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:50:33,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2018-01-28 22:50:33,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 342. [2018-01-28 22:50:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-01-28 22:50:33,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 372 transitions. [2018-01-28 22:50:33,723 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 372 transitions. Word has length 85 [2018-01-28 22:50:33,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:50:33,724 INFO L432 AbstractCegarLoop]: Abstraction has 342 states and 372 transitions. [2018-01-28 22:50:33,724 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-28 22:50:33,724 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 372 transitions. [2018-01-28 22:50:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-01-28 22:50:33,724 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:50:33,724 INFO L330 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:50:33,725 INFO L371 AbstractCegarLoop]: === Iteration 34 === [mainErr51RequiresViolation, mainErr69RequiresViolation, mainErr70EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr66RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr68RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr67RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-01-28 22:50:33,725 INFO L82 PathProgramCache]: Analyzing trace with hash -937768625, now seen corresponding path program 1 times [2018-01-28 22:50:33,725 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:50:33,725 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:50:33,725 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:33,725 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:50:33,725 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:50:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:50:33,739 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:50:33,955 ERROR L119 erpolLogProxyWrapper]: Could not assert interpolant [2018-01-28 22:50:33,956 ERROR L119 erpolLogProxyWrapper]: Interpolant 33 not inductive: (Check returned sat) [2018-01-28 22:50:33,957 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Asserted terms must be closed at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.assertTerm(SMTInterpol.java:654) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:956) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-28 22:50:33,963 INFO L168 Benchmark]: Toolchain (without parser) took 28678.92 ms. Allocated memory was 305.7 MB in the beginning and 777.0 MB in the end (delta: 471.3 MB). Free memory was 263.5 MB in the beginning and 503.7 MB in the end (delta: -240.1 MB). Peak memory consumption was 231.2 MB. Max. memory is 5.3 GB. [2018-01-28 22:50:33,965 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 305.7 MB. Free memory is still 269.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-28 22:50:33,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 235.35 ms. Allocated memory is still 305.7 MB. Free memory was 262.5 MB in the beginning and 249.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. [2018-01-28 22:50:33,965 INFO L168 Benchmark]: Boogie Preprocessor took 63.63 ms. Allocated memory is still 305.7 MB. Free memory was 249.4 MB in the beginning and 247.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-28 22:50:33,966 INFO L168 Benchmark]: RCFGBuilder took 780.36 ms. Allocated memory is still 305.7 MB. Free memory was 247.4 MB in the beginning and 196.7 MB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 5.3 GB. [2018-01-28 22:50:33,966 INFO L168 Benchmark]: TraceAbstraction took 27591.19 ms. Allocated memory was 305.7 MB in the beginning and 777.0 MB in the end (delta: 471.3 MB). Free memory was 195.7 MB in the beginning and 503.7 MB in the end (delta: -308.0 MB). Peak memory consumption was 163.4 MB. Max. memory is 5.3 GB. [2018-01-28 22:50:33,968 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 305.7 MB. Free memory is still 269.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 235.35 ms. Allocated memory is still 305.7 MB. Free memory was 262.5 MB in the beginning and 249.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 63.63 ms. Allocated memory is still 305.7 MB. Free memory was 249.4 MB in the beginning and 247.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 780.36 ms. Allocated memory is still 305.7 MB. Free memory was 247.4 MB in the beginning and 196.7 MB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 27591.19 ms. Allocated memory was 305.7 MB in the beginning and 777.0 MB in the end (delta: 471.3 MB). Free memory was 195.7 MB in the beginning and 503.7 MB in the end (delta: -308.0 MB). Peak memory consumption was 163.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Asserted terms must be closed de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Asserted terms must be closed: de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.assertTerm(SMTInterpol.java:654) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dll-01_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-28_22-50-33-976.csv Received shutdown request...