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 0.1.23-1cceb4a [2018-01-30 00:26:06,012 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:26:06,013 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:26:06,030 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:26:06,030 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:26:06,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:26:06,032 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:26:06,034 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:26:06,036 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:26:06,037 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:26:06,038 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 00:26:06,038 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 00:26:06,039 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 00:26:06,041 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 00:26:06,042 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 00:26:06,044 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 00:26:06,046 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 00:26:06,049 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 00:26:06,050 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 00:26:06,051 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 00:26:06,053 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 00:26:06,054 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 00:26:06,054 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 00:26:06,055 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 00:26:06,056 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 00:26:06,058 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 00:26:06,058 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 00:26:06,059 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 00:26:06,059 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 00:26:06,059 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 00:26:06,060 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 00:26:06,060 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 [2018-01-30 00:26:06,069 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:26:06,069 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:26:06,070 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:26:06,070 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:26:06,071 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:26:06,071 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:26:06,071 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:26:06,071 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:26:06,071 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:26:06,072 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 00:26:06,072 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:26:06,072 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:26:06,072 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:26:06,072 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 00:26:06,072 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 00:26:06,072 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 00:26:06,073 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:26:06,073 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:26:06,073 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:26:06,073 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:26:06,073 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:26:06,073 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:26:06,073 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:26:06,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:26:06,074 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:26:06,074 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:26:06,074 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:26:06,074 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:26:06,074 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:26:06,075 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:26:06,075 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:26:06,075 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:26:06,075 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:26:06,076 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:26:06,109 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:26:06,119 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:26:06,122 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:26:06,123 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:26:06,124 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:26:06,125 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01_true-unreach-call_true-valid-memsafety.i [2018-01-30 00:26:06,291 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:26:06,297 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-30 00:26:06,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:26:06,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:26:06,303 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:26:06,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e3f01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06, skipping insertion in model container [2018-01-30 00:26:06,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,320 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:26:06,362 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:26:06,497 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:26:06,525 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:26:06,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06 WrapperNode [2018-01-30 00:26:06,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:26:06,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:26:06,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:26:06,537 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:26:06,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (1/1) ... [2018-01-30 00:26:06,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:26:06,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:26:06,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:26:06,581 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:26:06,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (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 [2018-01-30 00:26:06,636 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:26:06,636 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:26:06,636 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:26:06,636 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-30 00:26:06,636 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-30 00:26:06,636 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:26:06,637 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:26:07,293 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:26:07,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:26:07 BoogieIcfgContainer [2018-01-30 00:26:07,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:26:07,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 00:26:07,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 00:26:07,299 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 00:26:07,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:26:06" (1/3) ... [2018-01-30 00:26:07,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0f7e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:26:07, skipping insertion in model container [2018-01-30 00:26:07,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:26:06" (2/3) ... [2018-01-30 00:26:07,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0f7e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:26:07, skipping insertion in model container [2018-01-30 00:26:07,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:26:07" (3/3) ... [2018-01-30 00:26:07,303 INFO L107 eAbstractionObserver]: Analyzing ICFG dll-01_true-unreach-call_true-valid-memsafety.i [2018-01-30 00:26:07,313 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 00:26:07,322 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2018-01-30 00:26:07,369 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 00:26:07,370 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 00:26:07,370 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 00:26:07,370 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 00:26:07,370 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 00:26:07,370 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 00:26:07,370 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 00:26:07,370 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 00:26:07,371 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 00:26:07,394 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2018-01-30 00:26:07,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-30 00:26:07,401 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:07,402 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:26:07,403 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]=== [2018-01-30 00:26:07,408 INFO L82 PathProgramCache]: Analyzing trace with hash -558205767, now seen corresponding path program 1 times [2018-01-30 00:26:07,410 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:07,411 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:07,463 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:07,463 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:07,464 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:07,512 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:07,665 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:07,665 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 00:26:07,667 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 00:26:07,678 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 00:26:07,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 00:26:07,681 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2018-01-30 00:26:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:08,055 INFO L93 Difference]: Finished difference Result 510 states and 637 transitions. [2018-01-30 00:26:08,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:26:08,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-30 00:26:08,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:08,069 INFO L225 Difference]: With dead ends: 510 [2018-01-30 00:26:08,070 INFO L226 Difference]: Without dead ends: 245 [2018-01-30 00:26:08,075 INFO L553 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 [2018-01-30 00:26:08,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-01-30 00:26:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 212. [2018-01-30 00:26:08,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2018-01-30 00:26:08,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 223 transitions. [2018-01-30 00:26:08,122 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 223 transitions. Word has length 9 [2018-01-30 00:26:08,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:08,122 INFO L432 AbstractCegarLoop]: Abstraction has 212 states and 223 transitions. [2018-01-30 00:26:08,122 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 00:26:08,123 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 223 transitions. [2018-01-30 00:26:08,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-30 00:26:08,123 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:08,123 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:26:08,123 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]=== [2018-01-30 00:26:08,124 INFO L82 PathProgramCache]: Analyzing trace with hash -558205766, now seen corresponding path program 1 times [2018-01-30 00:26:08,124 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:08,124 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:08,125 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:08,125 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:08,125 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:08,140 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:08,206 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:08,206 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 00:26:08,208 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 00:26:08,208 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 00:26:08,208 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 00:26:08,208 INFO L87 Difference]: Start difference. First operand 212 states and 223 transitions. Second operand 4 states. [2018-01-30 00:26:08,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:08,385 INFO L93 Difference]: Finished difference Result 249 states and 259 transitions. [2018-01-30 00:26:08,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 00:26:08,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-30 00:26:08,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:08,387 INFO L225 Difference]: With dead ends: 249 [2018-01-30 00:26:08,388 INFO L226 Difference]: Without dead ends: 237 [2018-01-30 00:26:08,388 INFO L553 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 [2018-01-30 00:26:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-01-30 00:26:08,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 226. [2018-01-30 00:26:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-01-30 00:26:08,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 244 transitions. [2018-01-30 00:26:08,403 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 244 transitions. Word has length 9 [2018-01-30 00:26:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:08,404 INFO L432 AbstractCegarLoop]: Abstraction has 226 states and 244 transitions. [2018-01-30 00:26:08,404 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 00:26:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 244 transitions. [2018-01-30 00:26:08,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-30 00:26:08,404 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:08,405 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:26:08,405 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]=== [2018-01-30 00:26:08,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1861640795, now seen corresponding path program 1 times [2018-01-30 00:26:08,405 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:08,405 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:08,406 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:08,406 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:08,406 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:08,426 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:08,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:08,480 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:08,480 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:26:08,480 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:08,480 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:08,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:08,480 INFO L87 Difference]: Start difference. First operand 226 states and 244 transitions. Second operand 5 states. [2018-01-30 00:26:08,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:08,942 INFO L93 Difference]: Finished difference Result 389 states and 415 transitions. [2018-01-30 00:26:08,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:26:08,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-30 00:26:08,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:08,944 INFO L225 Difference]: With dead ends: 389 [2018-01-30 00:26:08,944 INFO L226 Difference]: Without dead ends: 388 [2018-01-30 00:26:08,945 INFO L553 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 [2018-01-30 00:26:08,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2018-01-30 00:26:08,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 225. [2018-01-30 00:26:08,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-01-30 00:26:08,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 243 transitions. [2018-01-30 00:26:08,960 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 243 transitions. Word has length 20 [2018-01-30 00:26:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:08,961 INFO L432 AbstractCegarLoop]: Abstraction has 225 states and 243 transitions. [2018-01-30 00:26:08,961 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 243 transitions. [2018-01-30 00:26:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-30 00:26:08,962 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:08,962 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:26:08,962 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]=== [2018-01-30 00:26:08,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1861640794, now seen corresponding path program 1 times [2018-01-30 00:26:08,963 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:08,963 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:08,964 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:08,964 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:08,964 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:08,981 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:09,053 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:09,053 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:26:09,054 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:09,054 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:09,054 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:09,054 INFO L87 Difference]: Start difference. First operand 225 states and 243 transitions. Second operand 5 states. [2018-01-30 00:26:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:09,318 INFO L93 Difference]: Finished difference Result 421 states and 456 transitions. [2018-01-30 00:26:09,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:26:09,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-01-30 00:26:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:09,320 INFO L225 Difference]: With dead ends: 421 [2018-01-30 00:26:09,320 INFO L226 Difference]: Without dead ends: 420 [2018-01-30 00:26:09,320 INFO L553 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 [2018-01-30 00:26:09,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2018-01-30 00:26:09,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 224. [2018-01-30 00:26:09,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2018-01-30 00:26:09,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2018-01-30 00:26:09,332 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 20 [2018-01-30 00:26:09,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:09,333 INFO L432 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2018-01-30 00:26:09,333 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:09,333 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2018-01-30 00:26:09,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-30 00:26:09,334 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:09,334 INFO L350 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] [2018-01-30 00:26:09,334 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]=== [2018-01-30 00:26:09,334 INFO L82 PathProgramCache]: Analyzing trace with hash 771793270, now seen corresponding path program 1 times [2018-01-30 00:26:09,334 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:09,334 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:09,335 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:09,335 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:09,335 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:09,358 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:09,455 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:09,455 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 00:26:09,455 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-30 00:26:09,456 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-30 00:26:09,456 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-30 00:26:09,456 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 8 states. [2018-01-30 00:26:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:10,008 INFO L93 Difference]: Finished difference Result 391 states and 416 transitions. [2018-01-30 00:26:10,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-30 00:26:10,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-30 00:26:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:10,011 INFO L225 Difference]: With dead ends: 391 [2018-01-30 00:26:10,011 INFO L226 Difference]: Without dead ends: 390 [2018-01-30 00:26:10,011 INFO L553 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 [2018-01-30 00:26:10,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2018-01-30 00:26:10,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 223. [2018-01-30 00:26:10,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-01-30 00:26:10,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 241 transitions. [2018-01-30 00:26:10,019 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 241 transitions. Word has length 23 [2018-01-30 00:26:10,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:10,019 INFO L432 AbstractCegarLoop]: Abstraction has 223 states and 241 transitions. [2018-01-30 00:26:10,019 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-30 00:26:10,019 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 241 transitions. [2018-01-30 00:26:10,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-30 00:26:10,020 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:10,020 INFO L350 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] [2018-01-30 00:26:10,020 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]=== [2018-01-30 00:26:10,021 INFO L82 PathProgramCache]: Analyzing trace with hash 771793271, now seen corresponding path program 1 times [2018-01-30 00:26:10,021 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:10,021 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:10,022 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:10,022 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:10,022 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:10,039 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:10,165 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:10,165 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 00:26:10,166 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-30 00:26:10,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-30 00:26:10,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-30 00:26:10,166 INFO L87 Difference]: Start difference. First operand 223 states and 241 transitions. Second operand 8 states. [2018-01-30 00:26:10,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:10,728 INFO L93 Difference]: Finished difference Result 392 states and 417 transitions. [2018-01-30 00:26:10,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-30 00:26:10,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-30 00:26:10,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:10,731 INFO L225 Difference]: With dead ends: 392 [2018-01-30 00:26:10,731 INFO L226 Difference]: Without dead ends: 391 [2018-01-30 00:26:10,731 INFO L553 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 [2018-01-30 00:26:10,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-01-30 00:26:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 222. [2018-01-30 00:26:10,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-01-30 00:26:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 240 transitions. [2018-01-30 00:26:10,742 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 240 transitions. Word has length 23 [2018-01-30 00:26:10,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:10,743 INFO L432 AbstractCegarLoop]: Abstraction has 222 states and 240 transitions. [2018-01-30 00:26:10,743 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-30 00:26:10,743 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 240 transitions. [2018-01-30 00:26:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-01-30 00:26:10,744 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:10,744 INFO L350 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] [2018-01-30 00:26:10,745 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]=== [2018-01-30 00:26:10,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1785350953, now seen corresponding path program 1 times [2018-01-30 00:26:10,745 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:10,745 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:10,746 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:10,746 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:10,746 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:10,758 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:10,828 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:10,829 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 00:26:10,829 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:10,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:10,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:10,829 INFO L87 Difference]: Start difference. First operand 222 states and 240 transitions. Second operand 5 states. [2018-01-30 00:26:10,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:10,961 INFO L93 Difference]: Finished difference Result 523 states and 563 transitions. [2018-01-30 00:26:10,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:26:10,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2018-01-30 00:26:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:10,963 INFO L225 Difference]: With dead ends: 523 [2018-01-30 00:26:10,964 INFO L226 Difference]: Without dead ends: 333 [2018-01-30 00:26:10,965 INFO L553 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 [2018-01-30 00:26:10,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-01-30 00:26:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 226. [2018-01-30 00:26:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-01-30 00:26:10,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 244 transitions. [2018-01-30 00:26:10,977 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 244 transitions. Word has length 33 [2018-01-30 00:26:10,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:10,977 INFO L432 AbstractCegarLoop]: Abstraction has 226 states and 244 transitions. [2018-01-30 00:26:10,977 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:10,978 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 244 transitions. [2018-01-30 00:26:10,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-30 00:26:10,979 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:10,979 INFO L350 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] [2018-01-30 00:26:10,979 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]=== [2018-01-30 00:26:10,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1598716860, now seen corresponding path program 1 times [2018-01-30 00:26:10,979 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:10,980 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:10,980 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:10,981 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:10,981 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:10,991 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:11,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:11,062 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:11,062 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:26:11,062 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:11,062 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:11,063 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:11,063 INFO L87 Difference]: Start difference. First operand 226 states and 244 transitions. Second operand 5 states. [2018-01-30 00:26:11,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:11,264 INFO L93 Difference]: Finished difference Result 250 states and 264 transitions. [2018-01-30 00:26:11,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-30 00:26:11,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-01-30 00:26:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:11,266 INFO L225 Difference]: With dead ends: 250 [2018-01-30 00:26:11,266 INFO L226 Difference]: Without dead ends: 237 [2018-01-30 00:26:11,266 INFO L553 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 [2018-01-30 00:26:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2018-01-30 00:26:11,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 218. [2018-01-30 00:26:11,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-01-30 00:26:11,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 236 transitions. [2018-01-30 00:26:11,273 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 236 transitions. Word has length 35 [2018-01-30 00:26:11,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:11,274 INFO L432 AbstractCegarLoop]: Abstraction has 218 states and 236 transitions. [2018-01-30 00:26:11,274 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:11,274 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 236 transitions. [2018-01-30 00:26:11,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-30 00:26:11,275 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:11,275 INFO L350 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] [2018-01-30 00:26:11,275 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]=== [2018-01-30 00:26:11,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1598716861, now seen corresponding path program 1 times [2018-01-30 00:26:11,276 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:11,276 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:11,277 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:11,277 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:11,277 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:11,289 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:11,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:11,397 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:11,397 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-30 00:26:11,397 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-30 00:26:11,397 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-30 00:26:11,398 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-30 00:26:11,398 INFO L87 Difference]: Start difference. First operand 218 states and 236 transitions. Second operand 7 states. [2018-01-30 00:26:11,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:11,867 INFO L93 Difference]: Finished difference Result 288 states and 302 transitions. [2018-01-30 00:26:11,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:26:11,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-01-30 00:26:11,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:11,870 INFO L225 Difference]: With dead ends: 288 [2018-01-30 00:26:11,870 INFO L226 Difference]: Without dead ends: 283 [2018-01-30 00:26:11,870 INFO L553 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 [2018-01-30 00:26:11,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-01-30 00:26:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 255. [2018-01-30 00:26:11,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-01-30 00:26:11,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 283 transitions. [2018-01-30 00:26:11,883 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 283 transitions. Word has length 35 [2018-01-30 00:26:11,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:11,883 INFO L432 AbstractCegarLoop]: Abstraction has 255 states and 283 transitions. [2018-01-30 00:26:11,883 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-30 00:26:11,883 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 283 transitions. [2018-01-30 00:26:11,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-30 00:26:11,884 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:11,885 INFO L350 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] [2018-01-30 00:26:11,885 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]=== [2018-01-30 00:26:11,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1231386657, now seen corresponding path program 1 times [2018-01-30 00:26:11,885 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:11,885 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:11,886 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:11,886 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:11,886 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:11,898 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:11,926 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:11,926 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:26:11,927 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:11,927 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:11,927 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:11,927 INFO L87 Difference]: Start difference. First operand 255 states and 283 transitions. Second operand 5 states. [2018-01-30 00:26:12,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:12,248 INFO L93 Difference]: Finished difference Result 365 states and 406 transitions. [2018-01-30 00:26:12,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:26:12,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-01-30 00:26:12,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:12,251 INFO L225 Difference]: With dead ends: 365 [2018-01-30 00:26:12,251 INFO L226 Difference]: Without dead ends: 364 [2018-01-30 00:26:12,251 INFO L553 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 [2018-01-30 00:26:12,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2018-01-30 00:26:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 254. [2018-01-30 00:26:12,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-01-30 00:26:12,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 281 transitions. [2018-01-30 00:26:12,264 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 281 transitions. Word has length 37 [2018-01-30 00:26:12,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:12,265 INFO L432 AbstractCegarLoop]: Abstraction has 254 states and 281 transitions. [2018-01-30 00:26:12,265 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:12,265 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 281 transitions. [2018-01-30 00:26:12,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-30 00:26:12,266 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:12,266 INFO L350 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] [2018-01-30 00:26:12,266 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]=== [2018-01-30 00:26:12,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1231386656, now seen corresponding path program 1 times [2018-01-30 00:26:12,266 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:12,267 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:12,267 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:12,267 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:12,268 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:12,278 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:12,360 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:12,360 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:26:12,360 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:12,360 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:12,361 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:12,361 INFO L87 Difference]: Start difference. First operand 254 states and 281 transitions. Second operand 5 states. [2018-01-30 00:26:12,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:12,797 INFO L93 Difference]: Finished difference Result 397 states and 444 transitions. [2018-01-30 00:26:12,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:26:12,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-01-30 00:26:12,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:12,799 INFO L225 Difference]: With dead ends: 397 [2018-01-30 00:26:12,799 INFO L226 Difference]: Without dead ends: 396 [2018-01-30 00:26:12,800 INFO L553 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 [2018-01-30 00:26:12,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2018-01-30 00:26:12,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 253. [2018-01-30 00:26:12,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-01-30 00:26:12,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 279 transitions. [2018-01-30 00:26:12,813 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 279 transitions. Word has length 37 [2018-01-30 00:26:12,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:12,814 INFO L432 AbstractCegarLoop]: Abstraction has 253 states and 279 transitions. [2018-01-30 00:26:12,814 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:12,814 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 279 transitions. [2018-01-30 00:26:12,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-01-30 00:26:12,815 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:12,816 INFO L350 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] [2018-01-30 00:26:12,816 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]=== [2018-01-30 00:26:12,816 INFO L82 PathProgramCache]: Analyzing trace with hash 970090532, now seen corresponding path program 1 times [2018-01-30 00:26:12,816 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:12,816 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:12,817 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:12,817 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:12,817 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:12,830 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:12,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:12,910 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:12,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-30 00:26:12,911 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-30 00:26:12,911 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-30 00:26:12,911 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-30 00:26:12,911 INFO L87 Difference]: Start difference. First operand 253 states and 279 transitions. Second operand 9 states. [2018-01-30 00:26:13,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:13,350 INFO L93 Difference]: Finished difference Result 263 states and 288 transitions. [2018-01-30 00:26:13,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-30 00:26:13,351 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2018-01-30 00:26:13,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:13,352 INFO L225 Difference]: With dead ends: 263 [2018-01-30 00:26:13,352 INFO L226 Difference]: Without dead ends: 262 [2018-01-30 00:26:13,353 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-01-30 00:26:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-01-30 00:26:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 252. [2018-01-30 00:26:13,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-01-30 00:26:13,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 278 transitions. [2018-01-30 00:26:13,365 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 278 transitions. Word has length 42 [2018-01-30 00:26:13,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:13,366 INFO L432 AbstractCegarLoop]: Abstraction has 252 states and 278 transitions. [2018-01-30 00:26:13,366 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-30 00:26:13,366 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 278 transitions. [2018-01-30 00:26:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-01-30 00:26:13,367 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:13,367 INFO L350 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] [2018-01-30 00:26:13,367 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]=== [2018-01-30 00:26:13,367 INFO L82 PathProgramCache]: Analyzing trace with hash 970090533, now seen corresponding path program 1 times [2018-01-30 00:26:13,367 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:13,367 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:13,368 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:13,368 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:13,368 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:13,381 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:13,529 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:13,529 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-30 00:26:13,529 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-30 00:26:13,530 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-30 00:26:13,530 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-01-30 00:26:13,530 INFO L87 Difference]: Start difference. First operand 252 states and 278 transitions. Second operand 10 states. [2018-01-30 00:26:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:13,997 INFO L93 Difference]: Finished difference Result 265 states and 290 transitions. [2018-01-30 00:26:13,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-30 00:26:13,997 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-01-30 00:26:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:13,998 INFO L225 Difference]: With dead ends: 265 [2018-01-30 00:26:13,998 INFO L226 Difference]: Without dead ends: 255 [2018-01-30 00:26:13,999 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2018-01-30 00:26:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-01-30 00:26:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 232. [2018-01-30 00:26:14,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-01-30 00:26:14,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 257 transitions. [2018-01-30 00:26:14,006 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 257 transitions. Word has length 42 [2018-01-30 00:26:14,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:14,006 INFO L432 AbstractCegarLoop]: Abstraction has 232 states and 257 transitions. [2018-01-30 00:26:14,006 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-30 00:26:14,006 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 257 transitions. [2018-01-30 00:26:14,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-01-30 00:26:14,007 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:14,007 INFO L350 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] [2018-01-30 00:26:14,007 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]=== [2018-01-30 00:26:14,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1062581366, now seen corresponding path program 1 times [2018-01-30 00:26:14,007 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:14,008 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:14,008 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:14,008 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:14,009 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:14,017 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:14,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:14,059 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:14,059 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 00:26:14,059 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:14,060 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:14,060 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:14,060 INFO L87 Difference]: Start difference. First operand 232 states and 257 transitions. Second operand 5 states. [2018-01-30 00:26:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:14,154 INFO L93 Difference]: Finished difference Result 322 states and 345 transitions. [2018-01-30 00:26:14,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:26:14,154 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-01-30 00:26:14,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:14,155 INFO L225 Difference]: With dead ends: 322 [2018-01-30 00:26:14,155 INFO L226 Difference]: Without dead ends: 258 [2018-01-30 00:26:14,156 INFO L553 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 [2018-01-30 00:26:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-01-30 00:26:14,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 232. [2018-01-30 00:26:14,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-01-30 00:26:14,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 255 transitions. [2018-01-30 00:26:14,164 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 255 transitions. Word has length 44 [2018-01-30 00:26:14,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:14,164 INFO L432 AbstractCegarLoop]: Abstraction has 232 states and 255 transitions. [2018-01-30 00:26:14,164 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 255 transitions. [2018-01-30 00:26:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-01-30 00:26:14,165 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:14,166 INFO L350 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] [2018-01-30 00:26:14,166 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]=== [2018-01-30 00:26:14,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1086536703, now seen corresponding path program 1 times [2018-01-30 00:26:14,166 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:14,166 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:14,167 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:14,167 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:14,167 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:14,176 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:14,350 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:14,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-30 00:26:14,351 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-30 00:26:14,351 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-30 00:26:14,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-01-30 00:26:14,351 INFO L87 Difference]: Start difference. First operand 232 states and 255 transitions. Second operand 8 states. [2018-01-30 00:26:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:14,733 INFO L93 Difference]: Finished difference Result 494 states and 543 transitions. [2018-01-30 00:26:14,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-30 00:26:14,733 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2018-01-30 00:26:14,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:14,735 INFO L225 Difference]: With dead ends: 494 [2018-01-30 00:26:14,735 INFO L226 Difference]: Without dead ends: 363 [2018-01-30 00:26:14,735 INFO L553 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 [2018-01-30 00:26:14,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2018-01-30 00:26:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 255. [2018-01-30 00:26:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-01-30 00:26:14,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 279 transitions. [2018-01-30 00:26:14,748 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 279 transitions. Word has length 53 [2018-01-30 00:26:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:14,749 INFO L432 AbstractCegarLoop]: Abstraction has 255 states and 279 transitions. [2018-01-30 00:26:14,749 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-30 00:26:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 279 transitions. [2018-01-30 00:26:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-01-30 00:26:14,750 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:14,750 INFO L350 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] [2018-01-30 00:26:14,750 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]=== [2018-01-30 00:26:14,750 INFO L82 PathProgramCache]: Analyzing trace with hash -449387012, now seen corresponding path program 1 times [2018-01-30 00:26:14,751 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:14,751 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:14,751 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:14,752 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:14,752 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:14,764 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:14,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:14,812 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:14,812 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:26:14,812 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:14,813 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:14,813 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:14,813 INFO L87 Difference]: Start difference. First operand 255 states and 279 transitions. Second operand 5 states. [2018-01-30 00:26:15,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:15,063 INFO L93 Difference]: Finished difference Result 398 states and 437 transitions. [2018-01-30 00:26:15,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:26:15,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2018-01-30 00:26:15,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:15,065 INFO L225 Difference]: With dead ends: 398 [2018-01-30 00:26:15,065 INFO L226 Difference]: Without dead ends: 397 [2018-01-30 00:26:15,066 INFO L553 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 [2018-01-30 00:26:15,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2018-01-30 00:26:15,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 254. [2018-01-30 00:26:15,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-01-30 00:26:15,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 278 transitions. [2018-01-30 00:26:15,074 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 278 transitions. Word has length 55 [2018-01-30 00:26:15,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:15,074 INFO L432 AbstractCegarLoop]: Abstraction has 254 states and 278 transitions. [2018-01-30 00:26:15,074 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:15,074 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 278 transitions. [2018-01-30 00:26:15,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-01-30 00:26:15,075 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:15,075 INFO L350 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] [2018-01-30 00:26:15,075 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]=== [2018-01-30 00:26:15,075 INFO L82 PathProgramCache]: Analyzing trace with hash -449387011, now seen corresponding path program 1 times [2018-01-30 00:26:15,075 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:15,075 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:15,076 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:15,076 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:15,076 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:15,085 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:15,181 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:15,181 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:26:15,182 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:15,182 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:15,182 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:15,182 INFO L87 Difference]: Start difference. First operand 254 states and 278 transitions. Second operand 5 states. [2018-01-30 00:26:15,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:15,562 INFO L93 Difference]: Finished difference Result 433 states and 478 transitions. [2018-01-30 00:26:15,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:26:15,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2018-01-30 00:26:15,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:15,564 INFO L225 Difference]: With dead ends: 433 [2018-01-30 00:26:15,565 INFO L226 Difference]: Without dead ends: 432 [2018-01-30 00:26:15,565 INFO L553 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 [2018-01-30 00:26:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2018-01-30 00:26:15,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 253. [2018-01-30 00:26:15,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-01-30 00:26:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 277 transitions. [2018-01-30 00:26:15,579 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 277 transitions. Word has length 55 [2018-01-30 00:26:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:15,579 INFO L432 AbstractCegarLoop]: Abstraction has 253 states and 277 transitions. [2018-01-30 00:26:15,579 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 277 transitions. [2018-01-30 00:26:15,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-01-30 00:26:15,580 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:15,580 INFO L350 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] [2018-01-30 00:26:15,581 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]=== [2018-01-30 00:26:15,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1370049695, now seen corresponding path program 1 times [2018-01-30 00:26:15,581 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:15,581 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:15,582 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:15,582 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:15,582 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:15,592 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:15,742 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 00:26:15,742 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 [2018-01-30 00:26:15,752 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:15,790 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 00:26:15,934 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 [2018-01-30 00:26:15,943 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 [2018-01-30 00:26:15,943 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:15,945 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:15,974 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 [2018-01-30 00:26:15,976 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 [2018-01-30 00:26:15,977 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:15,978 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,005 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2018-01-30 00:26:16,079 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 [2018-01-30 00:26:16,083 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,086 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 [2018-01-30 00:26:16,087 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,117 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,167 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 [2018-01-30 00:26:16,176 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,176 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 [2018-01-30 00:26:16,177 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,198 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,239 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,240 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:39 [2018-01-30 00:26:16,342 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 [2018-01-30 00:26:16,347 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,354 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,355 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,356 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 [2018-01-30 00:26:16,357 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,396 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,475 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 [2018-01-30 00:26:16,486 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,486 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,500 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,501 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 [2018-01-30 00:26:16,502 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,542 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,631 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,631 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:65, output treesize:57 [2018-01-30 00:26:16,873 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 [2018-01-30 00:26:16,879 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,880 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,881 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,882 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 [2018-01-30 00:26:16,882 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,886 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,896 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 [2018-01-30 00:26:16,899 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,899 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,900 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:16,900 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 [2018-01-30 00:26:16,901 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,904 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,909 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:16,909 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:71, output treesize:7 [2018-01-30 00:26:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:16,946 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 00:26:16,946 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 12 [2018-01-30 00:26:16,946 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-30 00:26:16,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-30 00:26:16,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-01-30 00:26:16,947 INFO L87 Difference]: Start difference. First operand 253 states and 277 transitions. Second operand 12 states. [2018-01-30 00:26:17,763 WARN L143 SmtUtils]: Spent 202ms on a formula simplification that was a NOOP. DAG size: 52 [2018-01-30 00:26:17,914 WARN L143 SmtUtils]: Spent 109ms on a formula simplification that was a NOOP. DAG size: 36 [2018-01-30 00:26:18,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:18,312 INFO L93 Difference]: Finished difference Result 522 states and 559 transitions. [2018-01-30 00:26:18,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-30 00:26:18,312 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2018-01-30 00:26:18,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:18,315 INFO L225 Difference]: With dead ends: 522 [2018-01-30 00:26:18,315 INFO L226 Difference]: Without dead ends: 416 [2018-01-30 00:26:18,315 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=203, Invalid=499, Unknown=0, NotChecked=0, Total=702 [2018-01-30 00:26:18,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2018-01-30 00:26:18,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 297. [2018-01-30 00:26:18,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-01-30 00:26:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 330 transitions. [2018-01-30 00:26:18,336 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 330 transitions. Word has length 56 [2018-01-30 00:26:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:18,336 INFO L432 AbstractCegarLoop]: Abstraction has 297 states and 330 transitions. [2018-01-30 00:26:18,336 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-30 00:26:18,336 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 330 transitions. [2018-01-30 00:26:18,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-30 00:26:18,337 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:18,337 INFO L350 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] [2018-01-30 00:26:18,337 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]=== [2018-01-30 00:26:18,338 INFO L82 PathProgramCache]: Analyzing trace with hash -275251959, now seen corresponding path program 1 times [2018-01-30 00:26:18,338 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:18,338 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:18,339 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:18,339 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:18,339 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:18,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:18,358 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:18,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:18,557 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:18,557 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-30 00:26:18,557 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-30 00:26:18,557 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-30 00:26:18,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-01-30 00:26:18,558 INFO L87 Difference]: Start difference. First operand 297 states and 330 transitions. Second operand 14 states. [2018-01-30 00:26:19,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:19,489 INFO L93 Difference]: Finished difference Result 321 states and 356 transitions. [2018-01-30 00:26:19,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-30 00:26:19,490 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 58 [2018-01-30 00:26:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:19,491 INFO L225 Difference]: With dead ends: 321 [2018-01-30 00:26:19,491 INFO L226 Difference]: Without dead ends: 320 [2018-01-30 00:26:19,491 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=634, Unknown=0, NotChecked=0, Total=812 [2018-01-30 00:26:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-01-30 00:26:19,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 296. [2018-01-30 00:26:19,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2018-01-30 00:26:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 329 transitions. [2018-01-30 00:26:19,505 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 329 transitions. Word has length 58 [2018-01-30 00:26:19,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:19,506 INFO L432 AbstractCegarLoop]: Abstraction has 296 states and 329 transitions. [2018-01-30 00:26:19,506 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-30 00:26:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 329 transitions. [2018-01-30 00:26:19,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-30 00:26:19,506 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:19,506 INFO L350 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] [2018-01-30 00:26:19,506 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]=== [2018-01-30 00:26:19,507 INFO L82 PathProgramCache]: Analyzing trace with hash -275251958, now seen corresponding path program 1 times [2018-01-30 00:26:19,507 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:19,507 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:19,507 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:19,507 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:19,507 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:19,520 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:19,777 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:19,777 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 00:26:19,778 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-30 00:26:19,778 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-30 00:26:19,778 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-30 00:26:19,778 INFO L87 Difference]: Start difference. First operand 296 states and 329 transitions. Second operand 8 states. [2018-01-30 00:26:20,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:20,138 INFO L93 Difference]: Finished difference Result 323 states and 358 transitions. [2018-01-30 00:26:20,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 00:26:20,139 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2018-01-30 00:26:20,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:20,141 INFO L225 Difference]: With dead ends: 323 [2018-01-30 00:26:20,141 INFO L226 Difference]: Without dead ends: 322 [2018-01-30 00:26:20,141 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-30 00:26:20,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2018-01-30 00:26:20,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 295. [2018-01-30 00:26:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-01-30 00:26:20,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 328 transitions. [2018-01-30 00:26:20,159 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 328 transitions. Word has length 58 [2018-01-30 00:26:20,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:20,160 INFO L432 AbstractCegarLoop]: Abstraction has 295 states and 328 transitions. [2018-01-30 00:26:20,160 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-30 00:26:20,160 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 328 transitions. [2018-01-30 00:26:20,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-30 00:26:20,161 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:20,161 INFO L350 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] [2018-01-30 00:26:20,161 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]=== [2018-01-30 00:26:20,161 INFO L82 PathProgramCache]: Analyzing trace with hash -574960962, now seen corresponding path program 1 times [2018-01-30 00:26:20,162 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:20,162 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:20,163 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:20,163 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:20,163 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:20,179 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:20,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:20,509 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:20,509 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-30 00:26:20,509 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-30 00:26:20,509 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-30 00:26:20,510 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-01-30 00:26:20,510 INFO L87 Difference]: Start difference. First operand 295 states and 328 transitions. Second operand 17 states. [2018-01-30 00:26:21,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:21,793 INFO L93 Difference]: Finished difference Result 646 states and 694 transitions. [2018-01-30 00:26:21,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-01-30 00:26:21,794 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2018-01-30 00:26:21,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:21,799 INFO L225 Difference]: With dead ends: 646 [2018-01-30 00:26:21,799 INFO L226 Difference]: Without dead ends: 643 [2018-01-30 00:26:21,800 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=443, Invalid=1197, Unknown=0, NotChecked=0, Total=1640 [2018-01-30 00:26:21,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2018-01-30 00:26:21,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 303. [2018-01-30 00:26:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2018-01-30 00:26:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 335 transitions. [2018-01-30 00:26:21,823 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 335 transitions. Word has length 58 [2018-01-30 00:26:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:21,823 INFO L432 AbstractCegarLoop]: Abstraction has 303 states and 335 transitions. [2018-01-30 00:26:21,823 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-30 00:26:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 335 transitions. [2018-01-30 00:26:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-01-30 00:26:21,824 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:21,824 INFO L350 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] [2018-01-30 00:26:21,825 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]=== [2018-01-30 00:26:21,825 INFO L82 PathProgramCache]: Analyzing trace with hash -574960961, now seen corresponding path program 1 times [2018-01-30 00:26:21,825 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:21,825 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:21,826 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:21,826 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:21,826 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:21,842 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:22,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:22,270 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:22,271 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-30 00:26:22,271 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-30 00:26:22,271 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-30 00:26:22,271 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-01-30 00:26:22,272 INFO L87 Difference]: Start difference. First operand 303 states and 335 transitions. Second operand 17 states. [2018-01-30 00:26:24,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:24,063 INFO L93 Difference]: Finished difference Result 717 states and 758 transitions. [2018-01-30 00:26:24,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-01-30 00:26:24,064 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2018-01-30 00:26:24,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:24,067 INFO L225 Difference]: With dead ends: 717 [2018-01-30 00:26:24,067 INFO L226 Difference]: Without dead ends: 714 [2018-01-30 00:26:24,068 INFO L553 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 [2018-01-30 00:26:24,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2018-01-30 00:26:24,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 312. [2018-01-30 00:26:24,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2018-01-30 00:26:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 343 transitions. [2018-01-30 00:26:24,090 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 343 transitions. Word has length 58 [2018-01-30 00:26:24,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:24,090 INFO L432 AbstractCegarLoop]: Abstraction has 312 states and 343 transitions. [2018-01-30 00:26:24,090 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-30 00:26:24,090 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 343 transitions. [2018-01-30 00:26:24,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-01-30 00:26:24,091 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:24,091 INFO L350 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] [2018-01-30 00:26:24,091 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]=== [2018-01-30 00:26:24,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1149553499, now seen corresponding path program 1 times [2018-01-30 00:26:24,092 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:24,092 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:24,093 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:24,093 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:24,093 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:24,103 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-30 00:26:24,205 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:24,205 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 00:26:24,205 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-30 00:26:24,205 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-30 00:26:24,205 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-30 00:26:24,205 INFO L87 Difference]: Start difference. First operand 312 states and 343 transitions. Second operand 7 states. [2018-01-30 00:26:24,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:24,350 INFO L93 Difference]: Finished difference Result 400 states and 438 transitions. [2018-01-30 00:26:24,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-30 00:26:24,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2018-01-30 00:26:24,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:24,352 INFO L225 Difference]: With dead ends: 400 [2018-01-30 00:26:24,352 INFO L226 Difference]: Without dead ends: 342 [2018-01-30 00:26:24,352 INFO L553 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 [2018-01-30 00:26:24,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-01-30 00:26:24,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 326. [2018-01-30 00:26:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2018-01-30 00:26:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 357 transitions. [2018-01-30 00:26:24,372 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 357 transitions. Word has length 65 [2018-01-30 00:26:24,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:24,372 INFO L432 AbstractCegarLoop]: Abstraction has 326 states and 357 transitions. [2018-01-30 00:26:24,373 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-30 00:26:24,373 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 357 transitions. [2018-01-30 00:26:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-01-30 00:26:24,374 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:24,374 INFO L350 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] [2018-01-30 00:26:24,374 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]=== [2018-01-30 00:26:24,374 INFO L82 PathProgramCache]: Analyzing trace with hash 801681271, now seen corresponding path program 1 times [2018-01-30 00:26:24,374 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:24,375 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:24,375 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:24,375 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:24,375 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:24,386 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:24,499 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 00:26:24,499 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 [2018-01-30 00:26:24,505 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:24,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:24,533 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 00:26:24,548 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 [2018-01-30 00:26:24,550 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 [2018-01-30 00:26:24,550 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:24,552 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:24,567 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 [2018-01-30 00:26:24,569 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 [2018-01-30 00:26:24,569 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-30 00:26:24,571 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:24,586 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:26:24,586 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-01-30 00:26:24,862 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 [2018-01-30 00:26:24,865 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:24,866 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:24,872 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 [2018-01-30 00:26:24,873 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-01-30 00:26:24,886 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-30 00:26:24,896 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 [2018-01-30 00:26:24,899 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:24,902 INFO L700 Elim1Store]: detected not equals via solver [2018-01-30 00:26:24,912 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 [2018-01-30 00:26:24,912 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-01-30 00:26:24,920 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-30 00:26:24,928 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-01-30 00:26:24,928 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:53, output treesize:18 [2018-01-30 00:26:24,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:25,017 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 00:26:25,017 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 17 [2018-01-30 00:26:25,018 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-30 00:26:25,018 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-30 00:26:25,018 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=227, Unknown=2, NotChecked=0, Total=272 [2018-01-30 00:26:25,018 INFO L87 Difference]: Start difference. First operand 326 states and 357 transitions. Second operand 17 states. [2018-01-30 00:26:26,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:26,018 INFO L93 Difference]: Finished difference Result 519 states and 544 transitions. [2018-01-30 00:26:26,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-01-30 00:26:26,018 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2018-01-30 00:26:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:26,020 INFO L225 Difference]: With dead ends: 519 [2018-01-30 00:26:26,020 INFO L226 Difference]: Without dead ends: 480 [2018-01-30 00:26:26,021 INFO L553 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 [2018-01-30 00:26:26,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2018-01-30 00:26:26,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 358. [2018-01-30 00:26:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2018-01-30 00:26:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 396 transitions. [2018-01-30 00:26:26,037 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 396 transitions. Word has length 68 [2018-01-30 00:26:26,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:26,037 INFO L432 AbstractCegarLoop]: Abstraction has 358 states and 396 transitions. [2018-01-30 00:26:26,037 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-30 00:26:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 396 transitions. [2018-01-30 00:26:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-01-30 00:26:26,038 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:26,038 INFO L350 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] [2018-01-30 00:26:26,038 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]=== [2018-01-30 00:26:26,038 INFO L82 PathProgramCache]: Analyzing trace with hash -917682915, now seen corresponding path program 1 times [2018-01-30 00:26:26,038 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:26,038 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:26,039 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:26,039 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:26,039 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:26,049 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:26,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-30 00:26:26,148 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 00:26:26,148 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 [2018-01-30 00:26:26,153 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:26,176 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 00:26:26,231 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 [2018-01-30 00:26:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2018-01-30 00:26:26,281 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 00:26:26,282 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2018-01-30 00:26:26,282 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-30 00:26:26,282 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-30 00:26:26,282 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2018-01-30 00:26:26,282 INFO L87 Difference]: Start difference. First operand 358 states and 396 transitions. Second operand 10 states. [2018-01-30 00:26:26,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:26,675 INFO L93 Difference]: Finished difference Result 409 states and 447 transitions. [2018-01-30 00:26:26,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 00:26:26,676 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 69 [2018-01-30 00:26:26,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:26,677 INFO L225 Difference]: With dead ends: 409 [2018-01-30 00:26:26,677 INFO L226 Difference]: Without dead ends: 371 [2018-01-30 00:26:26,677 INFO L553 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 [2018-01-30 00:26:26,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2018-01-30 00:26:26,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 369. [2018-01-30 00:26:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 369 states. [2018-01-30 00:26:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 407 transitions. [2018-01-30 00:26:26,696 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 407 transitions. Word has length 69 [2018-01-30 00:26:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:26,697 INFO L432 AbstractCegarLoop]: Abstraction has 369 states and 407 transitions. [2018-01-30 00:26:26,697 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-30 00:26:26,697 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 407 transitions. [2018-01-30 00:26:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-01-30 00:26:26,698 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:26,698 INFO L350 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] [2018-01-30 00:26:26,698 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]=== [2018-01-30 00:26:26,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1092247912, now seen corresponding path program 1 times [2018-01-30 00:26:26,699 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:26,699 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:26,700 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:26,700 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:26,700 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:26,713 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:27,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-30 00:26:27,140 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:27,140 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-01-30 00:26:27,140 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-30 00:26:27,140 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-30 00:26:27,140 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2018-01-30 00:26:27,141 INFO L87 Difference]: Start difference. First operand 369 states and 407 transitions. Second operand 16 states. [2018-01-30 00:26:28,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:28,054 INFO L93 Difference]: Finished difference Result 622 states and 672 transitions. [2018-01-30 00:26:28,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-01-30 00:26:28,055 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 70 [2018-01-30 00:26:28,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:28,056 INFO L225 Difference]: With dead ends: 622 [2018-01-30 00:26:28,056 INFO L226 Difference]: Without dead ends: 621 [2018-01-30 00:26:28,057 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=406, Invalid=1234, Unknown=0, NotChecked=0, Total=1640 [2018-01-30 00:26:28,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2018-01-30 00:26:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 380. [2018-01-30 00:26:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-01-30 00:26:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 420 transitions. [2018-01-30 00:26:28,084 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 420 transitions. Word has length 70 [2018-01-30 00:26:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:28,084 INFO L432 AbstractCegarLoop]: Abstraction has 380 states and 420 transitions. [2018-01-30 00:26:28,084 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-30 00:26:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 420 transitions. [2018-01-30 00:26:28,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-01-30 00:26:28,085 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:28,086 INFO L350 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] [2018-01-30 00:26:28,086 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]=== [2018-01-30 00:26:28,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1092247911, now seen corresponding path program 1 times [2018-01-30 00:26:28,086 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:28,086 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:28,087 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:28,087 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:28,087 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:28,100 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-30 00:26:28,497 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:28,498 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-30 00:26:28,498 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-30 00:26:28,498 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-30 00:26:28,498 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-01-30 00:26:28,499 INFO L87 Difference]: Start difference. First operand 380 states and 420 transitions. Second operand 14 states. [2018-01-30 00:26:29,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:29,462 INFO L93 Difference]: Finished difference Result 620 states and 670 transitions. [2018-01-30 00:26:29,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-01-30 00:26:29,462 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 70 [2018-01-30 00:26:29,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:29,464 INFO L225 Difference]: With dead ends: 620 [2018-01-30 00:26:29,464 INFO L226 Difference]: Without dead ends: 617 [2018-01-30 00:26:29,465 INFO L553 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 [2018-01-30 00:26:29,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2018-01-30 00:26:29,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 389. [2018-01-30 00:26:29,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-01-30 00:26:29,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 428 transitions. [2018-01-30 00:26:29,481 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 428 transitions. Word has length 70 [2018-01-30 00:26:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:29,481 INFO L432 AbstractCegarLoop]: Abstraction has 389 states and 428 transitions. [2018-01-30 00:26:29,481 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-30 00:26:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 428 transitions. [2018-01-30 00:26:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-01-30 00:26:29,482 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:29,482 INFO L350 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] [2018-01-30 00:26:29,482 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]=== [2018-01-30 00:26:29,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1268239910, now seen corresponding path program 1 times [2018-01-30 00:26:29,482 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:29,482 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:29,483 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:29,483 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:29,483 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:29,490 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:29,678 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-30 00:26:29,678 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:29,678 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 00:26:29,678 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-30 00:26:29,678 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-30 00:26:29,678 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-30 00:26:29,679 INFO L87 Difference]: Start difference. First operand 389 states and 428 transitions. Second operand 7 states. [2018-01-30 00:26:29,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:29,985 INFO L93 Difference]: Finished difference Result 423 states and 457 transitions. [2018-01-30 00:26:29,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-30 00:26:29,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2018-01-30 00:26:29,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:29,987 INFO L225 Difference]: With dead ends: 423 [2018-01-30 00:26:29,987 INFO L226 Difference]: Without dead ends: 413 [2018-01-30 00:26:29,987 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-01-30 00:26:29,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2018-01-30 00:26:30,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 389. [2018-01-30 00:26:30,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-01-30 00:26:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 427 transitions. [2018-01-30 00:26:30,003 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 427 transitions. Word has length 74 [2018-01-30 00:26:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:30,004 INFO L432 AbstractCegarLoop]: Abstraction has 389 states and 427 transitions. [2018-01-30 00:26:30,004 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-30 00:26:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 427 transitions. [2018-01-30 00:26:30,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-01-30 00:26:30,004 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:30,004 INFO L350 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] [2018-01-30 00:26:30,004 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]=== [2018-01-30 00:26:30,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1144393985, now seen corresponding path program 1 times [2018-01-30 00:26:30,005 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:30,005 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:30,005 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:30,005 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:30,005 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:30,014 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-01-30 00:26:30,275 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:30,275 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-30 00:26:30,275 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-30 00:26:30,275 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-30 00:26:30,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-01-30 00:26:30,276 INFO L87 Difference]: Start difference. First operand 389 states and 427 transitions. Second operand 10 states. [2018-01-30 00:26:30,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:30,671 INFO L93 Difference]: Finished difference Result 795 states and 875 transitions. [2018-01-30 00:26:30,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-30 00:26:30,671 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 76 [2018-01-30 00:26:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:30,673 INFO L225 Difference]: With dead ends: 795 [2018-01-30 00:26:30,673 INFO L226 Difference]: Without dead ends: 540 [2018-01-30 00:26:30,674 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-01-30 00:26:30,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2018-01-30 00:26:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 350. [2018-01-30 00:26:30,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-01-30 00:26:30,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 386 transitions. [2018-01-30 00:26:30,688 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 386 transitions. Word has length 76 [2018-01-30 00:26:30,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:30,688 INFO L432 AbstractCegarLoop]: Abstraction has 350 states and 386 transitions. [2018-01-30 00:26:30,688 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-30 00:26:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 386 transitions. [2018-01-30 00:26:30,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-01-30 00:26:30,688 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:30,689 INFO L350 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] [2018-01-30 00:26:30,689 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]=== [2018-01-30 00:26:30,689 INFO L82 PathProgramCache]: Analyzing trace with hash -2091252941, now seen corresponding path program 1 times [2018-01-30 00:26:30,689 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:30,689 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:30,690 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:30,690 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:30,690 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:30,697 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:30,712 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:30,713 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 00:26:30,713 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-30 00:26:30,713 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-30 00:26:30,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 00:26:30,713 INFO L87 Difference]: Start difference. First operand 350 states and 386 transitions. Second operand 3 states. [2018-01-30 00:26:30,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:30,767 INFO L93 Difference]: Finished difference Result 776 states and 870 transitions. [2018-01-30 00:26:30,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-30 00:26:30,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2018-01-30 00:26:30,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:30,769 INFO L225 Difference]: With dead ends: 776 [2018-01-30 00:26:30,769 INFO L226 Difference]: Without dead ends: 566 [2018-01-30 00:26:30,770 INFO L553 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 [2018-01-30 00:26:30,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2018-01-30 00:26:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 421. [2018-01-30 00:26:30,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2018-01-30 00:26:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 472 transitions. [2018-01-30 00:26:30,787 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 472 transitions. Word has length 78 [2018-01-30 00:26:30,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:30,787 INFO L432 AbstractCegarLoop]: Abstraction has 421 states and 472 transitions. [2018-01-30 00:26:30,788 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-30 00:26:30,788 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 472 transitions. [2018-01-30 00:26:30,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-01-30 00:26:30,788 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:30,788 INFO L350 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] [2018-01-30 00:26:30,788 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]=== [2018-01-30 00:26:30,789 INFO L82 PathProgramCache]: Analyzing trace with hash 657145555, now seen corresponding path program 1 times [2018-01-30 00:26:30,789 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:30,789 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:30,789 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:30,789 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:30,789 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:30,796 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:30,931 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:30,931 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-30 00:26:30,931 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 00:26:30,932 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 00:26:30,932 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-30 00:26:30,932 INFO L87 Difference]: Start difference. First operand 421 states and 472 transitions. Second operand 6 states. [2018-01-30 00:26:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:31,081 INFO L93 Difference]: Finished difference Result 658 states and 746 transitions. [2018-01-30 00:26:31,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 00:26:31,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-01-30 00:26:31,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:31,083 INFO L225 Difference]: With dead ends: 658 [2018-01-30 00:26:31,083 INFO L226 Difference]: Without dead ends: 391 [2018-01-30 00:26:31,084 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-01-30 00:26:31,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-01-30 00:26:31,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 337. [2018-01-30 00:26:31,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-01-30 00:26:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 367 transitions. [2018-01-30 00:26:31,107 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 367 transitions. Word has length 78 [2018-01-30 00:26:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:31,107 INFO L432 AbstractCegarLoop]: Abstraction has 337 states and 367 transitions. [2018-01-30 00:26:31,107 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 00:26:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 367 transitions. [2018-01-30 00:26:31,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-01-30 00:26:31,108 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:31,108 INFO L350 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] [2018-01-30 00:26:31,109 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]=== [2018-01-30 00:26:31,109 INFO L82 PathProgramCache]: Analyzing trace with hash 51191633, now seen corresponding path program 1 times [2018-01-30 00:26:31,109 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:31,109 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:31,110 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:31,110 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:31,110 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:31,122 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-30 00:26:31,506 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:31,506 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-01-30 00:26:31,506 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-01-30 00:26:31,507 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-01-30 00:26:31,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-01-30 00:26:31,507 INFO L87 Difference]: Start difference. First operand 337 states and 367 transitions. Second operand 15 states. [2018-01-30 00:26:32,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:32,187 INFO L93 Difference]: Finished difference Result 554 states and 599 transitions. [2018-01-30 00:26:32,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-30 00:26:32,187 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2018-01-30 00:26:32,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:32,189 INFO L225 Difference]: With dead ends: 554 [2018-01-30 00:26:32,189 INFO L226 Difference]: Without dead ends: 553 [2018-01-30 00:26:32,189 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2018-01-30 00:26:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2018-01-30 00:26:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 338. [2018-01-30 00:26:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-01-30 00:26:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 368 transitions. [2018-01-30 00:26:32,215 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 368 transitions. Word has length 80 [2018-01-30 00:26:32,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:32,215 INFO L432 AbstractCegarLoop]: Abstraction has 338 states and 368 transitions. [2018-01-30 00:26:32,215 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-01-30 00:26:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 368 transitions. [2018-01-30 00:26:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-01-30 00:26:32,216 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:32,216 INFO L350 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] [2018-01-30 00:26:32,216 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]=== [2018-01-30 00:26:32,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1642746388, now seen corresponding path program 1 times [2018-01-30 00:26:32,216 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:32,216 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:32,217 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:32,217 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:32,217 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:32,224 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:32,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:26:32,285 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:26:32,285 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 00:26:32,286 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:26:32,286 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:26:32,286 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:26:32,286 INFO L87 Difference]: Start difference. First operand 338 states and 368 transitions. Second operand 5 states. [2018-01-30 00:26:32,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:26:32,430 INFO L93 Difference]: Finished difference Result 579 states and 637 transitions. [2018-01-30 00:26:32,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:26:32,430 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2018-01-30 00:26:32,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:26:32,431 INFO L225 Difference]: With dead ends: 579 [2018-01-30 00:26:32,432 INFO L226 Difference]: Without dead ends: 359 [2018-01-30 00:26:32,432 INFO L553 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 [2018-01-30 00:26:32,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2018-01-30 00:26:32,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 342. [2018-01-30 00:26:32,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-01-30 00:26:32,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 372 transitions. [2018-01-30 00:26:32,447 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 372 transitions. Word has length 85 [2018-01-30 00:26:32,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:26:32,448 INFO L432 AbstractCegarLoop]: Abstraction has 342 states and 372 transitions. [2018-01-30 00:26:32,448 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:26:32,448 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 372 transitions. [2018-01-30 00:26:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-01-30 00:26:32,448 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:26:32,448 INFO L350 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] [2018-01-30 00:26:32,448 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]=== [2018-01-30 00:26:32,449 INFO L82 PathProgramCache]: Analyzing trace with hash -937768625, now seen corresponding path program 1 times [2018-01-30 00:26:32,449 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:26:32,449 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:26:32,449 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:32,449 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:26:32,449 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:26:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:26:32,461 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:26:32,608 ERROR L119 erpolLogProxyWrapper]: Could not assert interpolant [2018-01-30 00:26:32,609 ERROR L119 erpolLogProxyWrapper]: Interpolant 33 not inductive: (Check returned sat) [2018-01-30 00:26:32,610 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:396) 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) [2018-01-30 00:26:32,615 INFO L168 Benchmark]: Toolchain (without parser) took 26322.64 ms. Allocated memory was 306.7 MB in the beginning and 773.3 MB in the end (delta: 466.6 MB). Free memory was 265.7 MB in the beginning and 519.8 MB in the end (delta: -254.1 MB). Peak memory consumption was 212.6 MB. Max. memory is 5.3 GB. [2018-01-30 00:26:32,616 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 306.7 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:26:32,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.89 ms. Allocated memory is still 306.7 MB. Free memory was 265.7 MB in the beginning and 251.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:26:32,616 INFO L168 Benchmark]: Boogie Preprocessor took 43.28 ms. Allocated memory is still 306.7 MB. Free memory was 251.8 MB in the beginning and 249.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:26:32,617 INFO L168 Benchmark]: RCFGBuilder took 713.23 ms. Allocated memory is still 306.7 MB. Free memory was 249.8 MB in the beginning and 198.9 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 5.3 GB. [2018-01-30 00:26:32,617 INFO L168 Benchmark]: TraceAbstraction took 25318.75 ms. Allocated memory was 306.7 MB in the beginning and 773.3 MB in the end (delta: 466.6 MB). Free memory was 198.9 MB in the beginning and 519.8 MB in the end (delta: -320.9 MB). Peak memory consumption was 145.7 MB. Max. memory is 5.3 GB. [2018-01-30 00:26:32,619 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 306.7 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 238.89 ms. Allocated memory is still 306.7 MB. Free memory was 265.7 MB in the beginning and 251.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 43.28 ms. Allocated memory is still 306.7 MB. Free memory was 251.8 MB in the beginning and 249.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 713.23 ms. Allocated memory is still 306.7 MB. Free memory was 249.8 MB in the beginning and 198.9 MB in the end (delta: 50.9 MB). Peak memory consumption was 50.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 25318.75 ms. Allocated memory was 306.7 MB in the beginning and 773.3 MB in the end (delta: 466.6 MB). Free memory was 198.9 MB in the beginning and 519.8 MB in the end (delta: -320.9 MB). Peak memory consumption was 145.7 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-0-2018-01-30_00-26-32-627.csv Received shutdown request...