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.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-01_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-6b94a2f [2018-01-24 12:34:44,185 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-24 12:34:44,187 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-24 12:34:44,200 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-24 12:34:44,200 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-24 12:34:44,201 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-24 12:34:44,202 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-24 12:34:44,204 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-24 12:34:44,205 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-24 12:34:44,206 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-24 12:34:44,206 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-24 12:34:44,206 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-24 12:34:44,207 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-24 12:34:44,208 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-24 12:34:44,209 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-24 12:34:44,211 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-24 12:34:44,213 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-24 12:34:44,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-24 12:34:44,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-24 12:34:44,218 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-24 12:34:44,220 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-24 12:34:44,220 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-24 12:34:44,221 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-24 12:34:44,222 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-24 12:34:44,223 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-24 12:34:44,224 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-24 12:34:44,224 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-24 12:34:44,225 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-24 12:34:44,225 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-24 12:34:44,225 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-24 12:34:44,226 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-24 12:34:44,226 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.epf [2018-01-24 12:34:44,235 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-24 12:34:44,235 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-24 12:34:44,236 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-24 12:34:44,236 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-24 12:34:44,237 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-24 12:34:44,237 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-24 12:34:44,237 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-24 12:34:44,237 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-24 12:34:44,238 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-24 12:34:44,238 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-24 12:34:44,238 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-24 12:34:44,238 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-24 12:34:44,238 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-24 12:34:44,239 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-24 12:34:44,239 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-24 12:34:44,239 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-24 12:34:44,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-24 12:34:44,239 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-24 12:34:44,239 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-24 12:34:44,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-01-24 12:34:44,240 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-24 12:34:44,240 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-24 12:34:44,240 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-24 12:34:44,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-24 12:34:44,240 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-24 12:34:44,241 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-24 12:34:44,241 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-24 12:34:44,241 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-24 12:34:44,241 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-24 12:34:44,241 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-24 12:34:44,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-24 12:34:44,242 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-24 12:34:44,242 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-24 12:34:44,243 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-24 12:34:44,278 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-24 12:34:44,291 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-24 12:34:44,296 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-24 12:34:44,298 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-24 12:34:44,298 INFO L276 PluginConnector]: CDTParser initialized [2018-01-24 12:34:44,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-01_true-unreach-call_true-valid-memsafety.i [2018-01-24 12:34:44,478 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-24 12:34:44,503 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-24 12:34:44,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-24 12:34:44,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-24 12:34:44,510 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-24 12:34:44,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321f72c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44, skipping insertion in model container [2018-01-24 12:34:44,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,529 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:34:44,569 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-24 12:34:44,698 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:34:44,723 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-24 12:34:44,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44 WrapperNode [2018-01-24 12:34:44,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-24 12:34:44,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-24 12:34:44,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-24 12:34:44,732 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-24 12:34:44,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (1/1) ... [2018-01-24 12:34:44,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-24 12:34:44,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-24 12:34:44,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-24 12:34:44,775 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-24 12:34:44,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (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 [2018-01-24 12:34:44,826 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-24 12:34:44,826 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-24 12:34:44,826 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-24 12:34:44,826 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-24 12:34:44,826 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-24 12:34:44,826 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-24 12:34:44,827 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-24 12:34:45,398 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-24 12:34:45,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:34:45 BoogieIcfgContainer [2018-01-24 12:34:45,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-24 12:34:45,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-24 12:34:45,400 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-24 12:34:45,402 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-24 12:34:45,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.01 12:34:44" (1/3) ... [2018-01-24 12:34:45,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16259bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:34:45, skipping insertion in model container [2018-01-24 12:34:45,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.01 12:34:44" (2/3) ... [2018-01-24 12:34:45,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16259bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.01 12:34:45, skipping insertion in model container [2018-01-24 12:34:45,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.01 12:34:45" (3/3) ... [2018-01-24 12:34:45,406 INFO L105 eAbstractionObserver]: Analyzing ICFG dll-01_true-unreach-call_true-valid-memsafety.i [2018-01-24 12:34:45,413 INFO L130 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-24 12:34:45,420 INFO L142 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2018-01-24 12:34:45,464 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-24 12:34:45,464 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-24 12:34:45,464 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-24 12:34:45,464 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-24 12:34:45,464 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-24 12:34:45,464 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-24 12:34:45,464 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-24 12:34:45,464 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-24 12:34:45,465 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-24 12:34:45,488 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2018-01-24 12:34:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 12:34:45,495 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:45,497 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:45,497 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]=== [2018-01-24 12:34:45,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1231756068, now seen corresponding path program 1 times [2018-01-24 12:34:45,503 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:45,504 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:45,546 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:45,546 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:45,546 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:45,585 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:45,660 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:45,661 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:34:45,663 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:34:45,678 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:34:45,679 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:34:45,682 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 4 states. [2018-01-24 12:34:46,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:46,118 INFO L93 Difference]: Finished difference Result 402 states and 529 transitions. [2018-01-24 12:34:46,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:34:46,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 12:34:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:46,134 INFO L225 Difference]: With dead ends: 402 [2018-01-24 12:34:46,134 INFO L226 Difference]: Without dead ends: 214 [2018-01-24 12:34:46,139 INFO L525 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 [2018-01-24 12:34:46,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-01-24 12:34:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 185. [2018-01-24 12:34:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-01-24 12:34:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2018-01-24 12:34:46,193 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 8 [2018-01-24 12:34:46,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:46,193 INFO L432 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2018-01-24 12:34:46,194 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:34:46,194 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2018-01-24 12:34:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-01-24 12:34:46,194 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:46,194 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:46,195 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]=== [2018-01-24 12:34:46,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1231756069, now seen corresponding path program 1 times [2018-01-24 12:34:46,195 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:46,195 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:46,196 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:46,197 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:46,197 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:46,218 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:46,293 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:46,293 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-24 12:34:46,295 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-24 12:34:46,295 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-24 12:34:46,295 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-24 12:34:46,295 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand 4 states. [2018-01-24 12:34:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:46,474 INFO L93 Difference]: Finished difference Result 218 states and 228 transitions. [2018-01-24 12:34:46,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-24 12:34:46,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-01-24 12:34:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:46,476 INFO L225 Difference]: With dead ends: 218 [2018-01-24 12:34:46,476 INFO L226 Difference]: Without dead ends: 206 [2018-01-24 12:34:46,478 INFO L525 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 [2018-01-24 12:34:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2018-01-24 12:34:46,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 195. [2018-01-24 12:34:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-24 12:34:46,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 213 transitions. [2018-01-24 12:34:46,494 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 213 transitions. Word has length 8 [2018-01-24 12:34:46,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:46,494 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 213 transitions. [2018-01-24 12:34:46,494 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-24 12:34:46,494 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 213 transitions. [2018-01-24 12:34:46,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:34:46,495 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:46,495 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:46,495 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]=== [2018-01-24 12:34:46,495 INFO L82 PathProgramCache]: Analyzing trace with hash -268288902, now seen corresponding path program 1 times [2018-01-24 12:34:46,495 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:46,495 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:46,496 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:46,497 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:46,497 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:46,517 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:46,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:46,577 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:46,577 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:34:46,577 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:46,578 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:46,578 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:46,578 INFO L87 Difference]: Start difference. First operand 195 states and 213 transitions. Second operand 5 states. [2018-01-24 12:34:47,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:47,020 INFO L93 Difference]: Finished difference Result 334 states and 360 transitions. [2018-01-24 12:34:47,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:34:47,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-24 12:34:47,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:47,023 INFO L225 Difference]: With dead ends: 334 [2018-01-24 12:34:47,024 INFO L226 Difference]: Without dead ends: 333 [2018-01-24 12:34:47,024 INFO L525 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 [2018-01-24 12:34:47,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-01-24 12:34:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 194. [2018-01-24 12:34:47,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-24 12:34:47,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 212 transitions. [2018-01-24 12:34:47,042 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 212 transitions. Word has length 18 [2018-01-24 12:34:47,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:47,042 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 212 transitions. [2018-01-24 12:34:47,043 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 212 transitions. [2018-01-24 12:34:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-01-24 12:34:47,044 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:47,044 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:47,045 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]=== [2018-01-24 12:34:47,046 INFO L82 PathProgramCache]: Analyzing trace with hash -268288901, now seen corresponding path program 1 times [2018-01-24 12:34:47,046 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:47,046 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:47,047 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:47,048 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:47,048 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:47,068 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:47,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:47,143 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:47,144 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:34:47,144 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:47,144 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:47,144 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:47,144 INFO L87 Difference]: Start difference. First operand 194 states and 212 transitions. Second operand 5 states. [2018-01-24 12:34:47,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:47,445 INFO L93 Difference]: Finished difference Result 362 states and 397 transitions. [2018-01-24 12:34:47,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:34:47,445 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2018-01-24 12:34:47,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:47,447 INFO L225 Difference]: With dead ends: 362 [2018-01-24 12:34:47,447 INFO L226 Difference]: Without dead ends: 361 [2018-01-24 12:34:47,447 INFO L525 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 [2018-01-24 12:34:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2018-01-24 12:34:47,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 193. [2018-01-24 12:34:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-01-24 12:34:47,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 211 transitions. [2018-01-24 12:34:47,461 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 211 transitions. Word has length 18 [2018-01-24 12:34:47,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:47,461 INFO L432 AbstractCegarLoop]: Abstraction has 193 states and 211 transitions. [2018-01-24 12:34:47,462 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:47,462 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 211 transitions. [2018-01-24 12:34:47,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-24 12:34:47,462 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:47,462 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:47,462 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]=== [2018-01-24 12:34:47,463 INFO L82 PathProgramCache]: Analyzing trace with hash 339478269, now seen corresponding path program 1 times [2018-01-24 12:34:47,463 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:47,463 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:47,463 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:47,464 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:47,464 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:47,486 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:47,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:47,595 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:47,595 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 12:34:47,595 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 12:34:47,596 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 12:34:47,596 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:34:47,596 INFO L87 Difference]: Start difference. First operand 193 states and 211 transitions. Second operand 8 states. [2018-01-24 12:34:48,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:48,172 INFO L93 Difference]: Finished difference Result 336 states and 361 transitions. [2018-01-24 12:34:48,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:34:48,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-01-24 12:34:48,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:48,174 INFO L225 Difference]: With dead ends: 336 [2018-01-24 12:34:48,174 INFO L226 Difference]: Without dead ends: 335 [2018-01-24 12:34:48,175 INFO L525 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 [2018-01-24 12:34:48,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2018-01-24 12:34:48,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 192. [2018-01-24 12:34:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-01-24 12:34:48,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 210 transitions. [2018-01-24 12:34:48,184 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 210 transitions. Word has length 21 [2018-01-24 12:34:48,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:48,184 INFO L432 AbstractCegarLoop]: Abstraction has 192 states and 210 transitions. [2018-01-24 12:34:48,184 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 12:34:48,184 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 210 transitions. [2018-01-24 12:34:48,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-24 12:34:48,185 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:48,185 INFO L322 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-24 12:34:48,185 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]=== [2018-01-24 12:34:48,186 INFO L82 PathProgramCache]: Analyzing trace with hash 339478270, now seen corresponding path program 1 times [2018-01-24 12:34:48,186 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:48,186 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:48,186 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:48,187 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:48,187 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:48,206 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:48,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:48,448 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:48,449 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 12:34:48,449 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 12:34:48,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 12:34:48,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:34:48,450 INFO L87 Difference]: Start difference. First operand 192 states and 210 transitions. Second operand 8 states. [2018-01-24 12:34:49,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:49,161 INFO L93 Difference]: Finished difference Result 337 states and 362 transitions. [2018-01-24 12:34:49,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:34:49,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-01-24 12:34:49,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:49,163 INFO L225 Difference]: With dead ends: 337 [2018-01-24 12:34:49,163 INFO L226 Difference]: Without dead ends: 336 [2018-01-24 12:34:49,163 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-24 12:34:49,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2018-01-24 12:34:49,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 191. [2018-01-24 12:34:49,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-01-24 12:34:49,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 209 transitions. [2018-01-24 12:34:49,174 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 209 transitions. Word has length 21 [2018-01-24 12:34:49,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:49,174 INFO L432 AbstractCegarLoop]: Abstraction has 191 states and 209 transitions. [2018-01-24 12:34:49,174 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 12:34:49,174 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 209 transitions. [2018-01-24 12:34:49,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-24 12:34:49,175 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:49,175 INFO L322 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] [2018-01-24 12:34:49,175 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]=== [2018-01-24 12:34:49,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1615330234, now seen corresponding path program 1 times [2018-01-24 12:34:49,175 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:49,175 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:49,176 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:49,176 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:49,176 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:49,185 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:49,239 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:49,239 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:34:49,239 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:49,239 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:49,239 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:49,240 INFO L87 Difference]: Start difference. First operand 191 states and 209 transitions. Second operand 5 states. [2018-01-24 12:34:49,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:49,397 INFO L93 Difference]: Finished difference Result 445 states and 485 transitions. [2018-01-24 12:34:49,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:34:49,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-01-24 12:34:49,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:49,398 INFO L225 Difference]: With dead ends: 445 [2018-01-24 12:34:49,398 INFO L226 Difference]: Without dead ends: 283 [2018-01-24 12:34:49,400 INFO L525 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 [2018-01-24 12:34:49,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2018-01-24 12:34:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 195. [2018-01-24 12:34:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-01-24 12:34:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 213 transitions. [2018-01-24 12:34:49,409 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 213 transitions. Word has length 27 [2018-01-24 12:34:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:49,410 INFO L432 AbstractCegarLoop]: Abstraction has 195 states and 213 transitions. [2018-01-24 12:34:49,410 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 213 transitions. [2018-01-24 12:34:49,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-24 12:34:49,411 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:49,411 INFO L322 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] [2018-01-24 12:34:49,411 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]=== [2018-01-24 12:34:49,411 INFO L82 PathProgramCache]: Analyzing trace with hash 803446251, now seen corresponding path program 1 times [2018-01-24 12:34:49,412 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:49,412 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:49,412 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:49,413 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:49,413 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:49,426 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:49,585 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:49,585 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:34:49,586 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:49,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:49,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:49,586 INFO L87 Difference]: Start difference. First operand 195 states and 213 transitions. Second operand 5 states. [2018-01-24 12:34:49,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:49,717 INFO L93 Difference]: Finished difference Result 217 states and 231 transitions. [2018-01-24 12:34:49,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-24 12:34:49,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-01-24 12:34:49,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:49,718 INFO L225 Difference]: With dead ends: 217 [2018-01-24 12:34:49,718 INFO L226 Difference]: Without dead ends: 204 [2018-01-24 12:34:49,719 INFO L525 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 [2018-01-24 12:34:49,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-01-24 12:34:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 186. [2018-01-24 12:34:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2018-01-24 12:34:49,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 204 transitions. [2018-01-24 12:34:49,725 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 204 transitions. Word has length 29 [2018-01-24 12:34:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:49,726 INFO L432 AbstractCegarLoop]: Abstraction has 186 states and 204 transitions. [2018-01-24 12:34:49,726 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:49,726 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 204 transitions. [2018-01-24 12:34:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-01-24 12:34:49,727 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:49,727 INFO L322 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] [2018-01-24 12:34:49,727 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]=== [2018-01-24 12:34:49,727 INFO L82 PathProgramCache]: Analyzing trace with hash 803446252, now seen corresponding path program 1 times [2018-01-24 12:34:49,727 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:49,728 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:49,728 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:49,728 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:49,728 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:49,740 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:49,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:49,833 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:49,833 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:34:49,834 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:34:49,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:34:49,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:34:49,834 INFO L87 Difference]: Start difference. First operand 186 states and 204 transitions. Second operand 7 states. [2018-01-24 12:34:50,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:50,196 INFO L93 Difference]: Finished difference Result 248 states and 262 transitions. [2018-01-24 12:34:50,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:34:50,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-01-24 12:34:50,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:50,197 INFO L225 Difference]: With dead ends: 248 [2018-01-24 12:34:50,198 INFO L226 Difference]: Without dead ends: 243 [2018-01-24 12:34:50,198 INFO L525 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 [2018-01-24 12:34:50,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-01-24 12:34:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 216. [2018-01-24 12:34:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-01-24 12:34:50,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 244 transitions. [2018-01-24 12:34:50,209 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 244 transitions. Word has length 29 [2018-01-24 12:34:50,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:50,209 INFO L432 AbstractCegarLoop]: Abstraction has 216 states and 244 transitions. [2018-01-24 12:34:50,209 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:34:50,209 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 244 transitions. [2018-01-24 12:34:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-24 12:34:50,210 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:50,211 INFO L322 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] [2018-01-24 12:34:50,211 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]=== [2018-01-24 12:34:50,211 INFO L82 PathProgramCache]: Analyzing trace with hash -982263634, now seen corresponding path program 1 times [2018-01-24 12:34:50,211 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:50,211 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:50,212 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:50,212 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:50,213 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:50,225 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:50,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:50,274 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:50,274 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:34:50,274 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:50,275 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:50,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:50,275 INFO L87 Difference]: Start difference. First operand 216 states and 244 transitions. Second operand 5 states. [2018-01-24 12:34:50,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:50,503 INFO L93 Difference]: Finished difference Result 305 states and 346 transitions. [2018-01-24 12:34:50,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:34:50,504 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-01-24 12:34:50,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:50,505 INFO L225 Difference]: With dead ends: 305 [2018-01-24 12:34:50,505 INFO L226 Difference]: Without dead ends: 304 [2018-01-24 12:34:50,505 INFO L525 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 [2018-01-24 12:34:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2018-01-24 12:34:50,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 215. [2018-01-24 12:34:50,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-01-24 12:34:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 242 transitions. [2018-01-24 12:34:50,516 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 242 transitions. Word has length 31 [2018-01-24 12:34:50,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:50,517 INFO L432 AbstractCegarLoop]: Abstraction has 215 states and 242 transitions. [2018-01-24 12:34:50,517 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:50,517 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 242 transitions. [2018-01-24 12:34:50,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-01-24 12:34:50,518 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:50,518 INFO L322 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] [2018-01-24 12:34:50,518 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]=== [2018-01-24 12:34:50,519 INFO L82 PathProgramCache]: Analyzing trace with hash -982263633, now seen corresponding path program 1 times [2018-01-24 12:34:50,519 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:50,519 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:50,520 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:50,520 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:50,520 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:50,532 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:50,591 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:50,591 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:34:50,591 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:50,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:50,592 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:50,592 INFO L87 Difference]: Start difference. First operand 215 states and 242 transitions. Second operand 5 states. [2018-01-24 12:34:50,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:50,821 INFO L93 Difference]: Finished difference Result 333 states and 380 transitions. [2018-01-24 12:34:50,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:34:50,821 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-01-24 12:34:50,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:50,823 INFO L225 Difference]: With dead ends: 333 [2018-01-24 12:34:50,823 INFO L226 Difference]: Without dead ends: 332 [2018-01-24 12:34:50,823 INFO L525 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 [2018-01-24 12:34:50,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-01-24 12:34:50,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 214. [2018-01-24 12:34:50,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-01-24 12:34:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 240 transitions. [2018-01-24 12:34:50,836 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 240 transitions. Word has length 31 [2018-01-24 12:34:50,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:50,837 INFO L432 AbstractCegarLoop]: Abstraction has 214 states and 240 transitions. [2018-01-24 12:34:50,837 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 240 transitions. [2018-01-24 12:34:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-24 12:34:50,838 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:50,838 INFO L322 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] [2018-01-24 12:34:50,838 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]=== [2018-01-24 12:34:50,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1048421776, now seen corresponding path program 1 times [2018-01-24 12:34:50,839 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:50,839 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:50,840 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:50,840 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:50,840 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:50,855 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:50,968 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:50,968 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-24 12:34:50,969 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-24 12:34:50,969 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-24 12:34:50,969 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-24 12:34:50,969 INFO L87 Difference]: Start difference. First operand 214 states and 240 transitions. Second operand 9 states. [2018-01-24 12:34:51,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:51,309 INFO L93 Difference]: Finished difference Result 224 states and 249 transitions. [2018-01-24 12:34:51,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 12:34:51,309 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 35 [2018-01-24 12:34:51,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:51,311 INFO L225 Difference]: With dead ends: 224 [2018-01-24 12:34:51,311 INFO L226 Difference]: Without dead ends: 223 [2018-01-24 12:34:51,311 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-01-24 12:34:51,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-01-24 12:34:51,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 213. [2018-01-24 12:34:51,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-01-24 12:34:51,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 239 transitions. [2018-01-24 12:34:51,319 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 239 transitions. Word has length 35 [2018-01-24 12:34:51,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:51,320 INFO L432 AbstractCegarLoop]: Abstraction has 213 states and 239 transitions. [2018-01-24 12:34:51,320 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-24 12:34:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 239 transitions. [2018-01-24 12:34:51,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-01-24 12:34:51,320 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:51,321 INFO L322 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] [2018-01-24 12:34:51,321 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]=== [2018-01-24 12:34:51,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1048421775, now seen corresponding path program 1 times [2018-01-24 12:34:51,321 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:51,321 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:51,322 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:51,322 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:51,322 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:51,335 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:51,784 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:51,784 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 12:34:51,785 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 12:34:51,785 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 12:34:51,785 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:34:51,785 INFO L87 Difference]: Start difference. First operand 213 states and 239 transitions. Second operand 10 states. [2018-01-24 12:34:52,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:52,361 INFO L93 Difference]: Finished difference Result 225 states and 250 transitions. [2018-01-24 12:34:52,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-24 12:34:52,361 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-01-24 12:34:52,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:52,362 INFO L225 Difference]: With dead ends: 225 [2018-01-24 12:34:52,362 INFO L226 Difference]: Without dead ends: 215 [2018-01-24 12:34:52,363 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2018-01-24 12:34:52,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-01-24 12:34:52,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 194. [2018-01-24 12:34:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-24 12:34:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 219 transitions. [2018-01-24 12:34:52,373 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 219 transitions. Word has length 35 [2018-01-24 12:34:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:52,373 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 219 transitions. [2018-01-24 12:34:52,374 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 12:34:52,374 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 219 transitions. [2018-01-24 12:34:52,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-01-24 12:34:52,375 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:52,375 INFO L322 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] [2018-01-24 12:34:52,375 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]=== [2018-01-24 12:34:52,375 INFO L82 PathProgramCache]: Analyzing trace with hash -436143591, now seen corresponding path program 1 times [2018-01-24 12:34:52,375 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:52,375 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:52,376 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:52,376 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:52,376 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:52,384 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:52,434 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:52,435 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:34:52,435 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:52,435 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:52,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:52,435 INFO L87 Difference]: Start difference. First operand 194 states and 219 transitions. Second operand 5 states. [2018-01-24 12:34:52,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:52,587 INFO L93 Difference]: Finished difference Result 274 states and 297 transitions. [2018-01-24 12:34:52,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-24 12:34:52,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-01-24 12:34:52,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:52,589 INFO L225 Difference]: With dead ends: 274 [2018-01-24 12:34:52,589 INFO L226 Difference]: Without dead ends: 218 [2018-01-24 12:34:52,590 INFO L525 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 [2018-01-24 12:34:52,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-01-24 12:34:52,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 194. [2018-01-24 12:34:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2018-01-24 12:34:52,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 217 transitions. [2018-01-24 12:34:52,601 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 217 transitions. Word has length 37 [2018-01-24 12:34:52,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:52,601 INFO L432 AbstractCegarLoop]: Abstraction has 194 states and 217 transitions. [2018-01-24 12:34:52,601 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:52,602 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 217 transitions. [2018-01-24 12:34:52,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-01-24 12:34:52,603 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:52,603 INFO L322 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] [2018-01-24 12:34:52,603 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]=== [2018-01-24 12:34:52,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2094023958, now seen corresponding path program 1 times [2018-01-24 12:34:52,603 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:52,603 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:52,604 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:52,604 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:52,604 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:52,615 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:52,780 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:52,780 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-24 12:34:52,780 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 12:34:52,780 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 12:34:52,781 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:34:52,781 INFO L87 Difference]: Start difference. First operand 194 states and 217 transitions. Second operand 10 states. [2018-01-24 12:34:53,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:53,220 INFO L93 Difference]: Finished difference Result 395 states and 437 transitions. [2018-01-24 12:34:53,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-24 12:34:53,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 43 [2018-01-24 12:34:53,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:53,222 INFO L225 Difference]: With dead ends: 395 [2018-01-24 12:34:53,222 INFO L226 Difference]: Without dead ends: 285 [2018-01-24 12:34:53,222 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2018-01-24 12:34:53,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2018-01-24 12:34:53,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 210. [2018-01-24 12:34:53,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2018-01-24 12:34:53,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 234 transitions. [2018-01-24 12:34:53,232 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 234 transitions. Word has length 43 [2018-01-24 12:34:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:53,232 INFO L432 AbstractCegarLoop]: Abstraction has 210 states and 234 transitions. [2018-01-24 12:34:53,232 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 12:34:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 234 transitions. [2018-01-24 12:34:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-01-24 12:34:53,233 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:53,233 INFO L322 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] [2018-01-24 12:34:53,233 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]=== [2018-01-24 12:34:53,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1866790362, now seen corresponding path program 1 times [2018-01-24 12:34:53,234 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:53,234 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:53,234 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:53,235 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:53,235 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:53,244 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:53,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:53,459 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:34:53,459 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 [2018-01-24 12:34:53,475 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:53,512 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:34:53,659 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 [2018-01-24 12:34:53,661 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 [2018-01-24 12:34:53,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,697 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 [2018-01-24 12:34:53,703 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 [2018-01-24 12:34:53,704 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,710 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,725 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,726 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2018-01-24 12:34:53,786 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 [2018-01-24 12:34:53,794 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:53,797 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 [2018-01-24 12:34:53,798 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,812 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,859 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 [2018-01-24 12:34:53,867 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:53,868 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 [2018-01-24 12:34:53,868 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,920 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:53,960 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:39 [2018-01-24 12:34:54,020 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 [2018-01-24 12:34:54,025 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,026 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,026 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,027 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 [2018-01-24 12:34:54,028 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,046 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,061 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 [2018-01-24 12:34:54,063 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,064 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,065 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,065 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 [2018-01-24 12:34:54,066 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,075 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,084 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,084 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:65, output treesize:57 [2018-01-24 12:34:54,144 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 [2018-01-24 12:34:54,147 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,147 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,148 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,150 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 [2018-01-24 12:34:54,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,154 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,164 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 [2018-01-24 12:34:54,167 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,167 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,168 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:34:54,169 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 [2018-01-24 12:34:54,169 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,173 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,177 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:34:54,177 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:71, output treesize:7 [2018-01-24 12:34:54,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:54,212 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:34:54,212 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 12 [2018-01-24 12:34:54,213 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-24 12:34:54,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-24 12:34:54,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-01-24 12:34:54,213 INFO L87 Difference]: Start difference. First operand 210 states and 234 transitions. Second operand 12 states. [2018-01-24 12:34:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:55,464 INFO L93 Difference]: Finished difference Result 435 states and 472 transitions. [2018-01-24 12:34:55,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-01-24 12:34:55,465 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2018-01-24 12:34:55,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:55,466 INFO L225 Difference]: With dead ends: 435 [2018-01-24 12:34:55,467 INFO L226 Difference]: Without dead ends: 345 [2018-01-24 12:34:55,467 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-01-24 12:34:55,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2018-01-24 12:34:55,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 244. [2018-01-24 12:34:55,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-01-24 12:34:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 277 transitions. [2018-01-24 12:34:55,485 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 277 transitions. Word has length 45 [2018-01-24 12:34:55,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:55,485 INFO L432 AbstractCegarLoop]: Abstraction has 244 states and 277 transitions. [2018-01-24 12:34:55,485 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-24 12:34:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 277 transitions. [2018-01-24 12:34:55,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-01-24 12:34:55,486 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:55,486 INFO L322 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] [2018-01-24 12:34:55,487 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]=== [2018-01-24 12:34:55,487 INFO L82 PathProgramCache]: Analyzing trace with hash -336978579, now seen corresponding path program 1 times [2018-01-24 12:34:55,487 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:55,487 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:55,488 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:55,488 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:55,488 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:55,502 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:55,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:55,537 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:55,537 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:34:55,537 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:55,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:55,538 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:55,538 INFO L87 Difference]: Start difference. First operand 244 states and 277 transitions. Second operand 5 states. [2018-01-24 12:34:55,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:55,834 INFO L93 Difference]: Finished difference Result 359 states and 407 transitions. [2018-01-24 12:34:55,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:34:55,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-01-24 12:34:55,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:55,837 INFO L225 Difference]: With dead ends: 359 [2018-01-24 12:34:55,837 INFO L226 Difference]: Without dead ends: 358 [2018-01-24 12:34:55,837 INFO L525 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 [2018-01-24 12:34:55,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-01-24 12:34:55,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 243. [2018-01-24 12:34:55,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-01-24 12:34:55,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 276 transitions. [2018-01-24 12:34:55,855 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 276 transitions. Word has length 47 [2018-01-24 12:34:55,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:55,856 INFO L432 AbstractCegarLoop]: Abstraction has 243 states and 276 transitions. [2018-01-24 12:34:55,856 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 276 transitions. [2018-01-24 12:34:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-01-24 12:34:55,856 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:55,857 INFO L322 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] [2018-01-24 12:34:55,857 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]=== [2018-01-24 12:34:55,857 INFO L82 PathProgramCache]: Analyzing trace with hash -336978578, now seen corresponding path program 1 times [2018-01-24 12:34:55,857 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:55,857 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:55,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:55,858 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:55,858 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:55,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:55,932 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:55,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-24 12:34:55,933 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:34:55,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:34:55,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:34:55,933 INFO L87 Difference]: Start difference. First operand 243 states and 276 transitions. Second operand 5 states. [2018-01-24 12:34:56,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:56,289 INFO L93 Difference]: Finished difference Result 390 states and 444 transitions. [2018-01-24 12:34:56,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:34:56,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-01-24 12:34:56,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:56,292 INFO L225 Difference]: With dead ends: 390 [2018-01-24 12:34:56,292 INFO L226 Difference]: Without dead ends: 389 [2018-01-24 12:34:56,293 INFO L525 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 [2018-01-24 12:34:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2018-01-24 12:34:56,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 242. [2018-01-24 12:34:56,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-01-24 12:34:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 275 transitions. [2018-01-24 12:34:56,310 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 275 transitions. Word has length 47 [2018-01-24 12:34:56,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:56,311 INFO L432 AbstractCegarLoop]: Abstraction has 242 states and 275 transitions. [2018-01-24 12:34:56,311 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:34:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 275 transitions. [2018-01-24 12:34:56,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 12:34:56,312 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:56,312 INFO L322 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] [2018-01-24 12:34:56,312 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]=== [2018-01-24 12:34:56,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1571885263, now seen corresponding path program 1 times [2018-01-24 12:34:56,312 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:56,312 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:56,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:56,313 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:56,313 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:56,329 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:56,915 WARN L146 SmtUtils]: Spent 114ms on a formula simplification. DAG size of input: 33 DAG size of output 27 [2018-01-24 12:34:57,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:57,291 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:57,291 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-24 12:34:57,291 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-24 12:34:57,292 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-24 12:34:57,292 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-01-24 12:34:57,292 INFO L87 Difference]: Start difference. First operand 242 states and 275 transitions. Second operand 17 states. [2018-01-24 12:34:58,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:34:58,737 INFO L93 Difference]: Finished difference Result 535 states and 583 transitions. [2018-01-24 12:34:58,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-01-24 12:34:58,738 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 48 [2018-01-24 12:34:58,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:34:58,742 INFO L225 Difference]: With dead ends: 535 [2018-01-24 12:34:58,742 INFO L226 Difference]: Without dead ends: 532 [2018-01-24 12:34:58,743 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=411, Invalid=1149, Unknown=0, NotChecked=0, Total=1560 [2018-01-24 12:34:58,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2018-01-24 12:34:58,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 248. [2018-01-24 12:34:58,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2018-01-24 12:34:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 280 transitions. [2018-01-24 12:34:58,764 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 280 transitions. Word has length 48 [2018-01-24 12:34:58,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:34:58,765 INFO L432 AbstractCegarLoop]: Abstraction has 248 states and 280 transitions. [2018-01-24 12:34:58,765 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-24 12:34:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 280 transitions. [2018-01-24 12:34:58,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-01-24 12:34:58,765 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:34:58,766 INFO L322 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] [2018-01-24 12:34:58,766 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]=== [2018-01-24 12:34:58,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1571885264, now seen corresponding path program 1 times [2018-01-24 12:34:58,766 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:34:58,766 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:34:58,767 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:58,767 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:34:58,767 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:34:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:34:58,784 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:34:59,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:34:59,199 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:34:59,199 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-01-24 12:34:59,199 INFO L409 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-01-24 12:34:59,199 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-01-24 12:34:59,199 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-01-24 12:34:59,200 INFO L87 Difference]: Start difference. First operand 248 states and 280 transitions. Second operand 16 states. [2018-01-24 12:35:00,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:00,606 INFO L93 Difference]: Finished difference Result 587 states and 628 transitions. [2018-01-24 12:35:00,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-01-24 12:35:00,606 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 48 [2018-01-24 12:35:00,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:00,608 INFO L225 Difference]: With dead ends: 587 [2018-01-24 12:35:00,608 INFO L226 Difference]: Without dead ends: 584 [2018-01-24 12:35:00,609 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=481, Invalid=1325, Unknown=0, NotChecked=0, Total=1806 [2018-01-24 12:35:00,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2018-01-24 12:35:00,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 255. [2018-01-24 12:35:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2018-01-24 12:35:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 286 transitions. [2018-01-24 12:35:00,622 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 286 transitions. Word has length 48 [2018-01-24 12:35:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:00,622 INFO L432 AbstractCegarLoop]: Abstraction has 255 states and 286 transitions. [2018-01-24 12:35:00,622 INFO L433 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-01-24 12:35:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 286 transitions. [2018-01-24 12:35:00,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-01-24 12:35:00,623 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:00,623 INFO L322 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] [2018-01-24 12:35:00,623 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]=== [2018-01-24 12:35:00,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1590133210, now seen corresponding path program 1 times [2018-01-24 12:35:00,623 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:00,623 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:00,624 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:00,624 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:00,624 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:00,636 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:35:00,821 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:00,821 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-24 12:35:00,821 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-24 12:35:00,821 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-24 12:35:00,822 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-01-24 12:35:00,822 INFO L87 Difference]: Start difference. First operand 255 states and 286 transitions. Second operand 14 states. [2018-01-24 12:35:01,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:01,531 INFO L93 Difference]: Finished difference Result 274 states and 307 transitions. [2018-01-24 12:35:01,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-01-24 12:35:01,531 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 50 [2018-01-24 12:35:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:01,533 INFO L225 Difference]: With dead ends: 274 [2018-01-24 12:35:01,533 INFO L226 Difference]: Without dead ends: 273 [2018-01-24 12:35:01,534 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2018-01-24 12:35:01,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2018-01-24 12:35:01,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 254. [2018-01-24 12:35:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2018-01-24 12:35:01,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 285 transitions. [2018-01-24 12:35:01,554 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 285 transitions. Word has length 50 [2018-01-24 12:35:01,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:01,554 INFO L432 AbstractCegarLoop]: Abstraction has 254 states and 285 transitions. [2018-01-24 12:35:01,554 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-24 12:35:01,554 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 285 transitions. [2018-01-24 12:35:01,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-01-24 12:35:01,555 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:01,555 INFO L322 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] [2018-01-24 12:35:01,555 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]=== [2018-01-24 12:35:01,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1590133209, now seen corresponding path program 1 times [2018-01-24 12:35:01,556 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:01,556 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:01,557 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:01,557 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:01,557 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:01,571 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:35:01,742 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:01,742 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 12:35:01,742 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-24 12:35:01,743 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-24 12:35:01,743 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-24 12:35:01,743 INFO L87 Difference]: Start difference. First operand 254 states and 285 transitions. Second operand 8 states. [2018-01-24 12:35:02,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:02,094 INFO L93 Difference]: Finished difference Result 275 states and 308 transitions. [2018-01-24 12:35:02,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 12:35:02,094 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2018-01-24 12:35:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:02,095 INFO L225 Difference]: With dead ends: 275 [2018-01-24 12:35:02,095 INFO L226 Difference]: Without dead ends: 274 [2018-01-24 12:35:02,096 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-01-24 12:35:02,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-01-24 12:35:02,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 253. [2018-01-24 12:35:02,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-01-24 12:35:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 284 transitions. [2018-01-24 12:35:02,115 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 284 transitions. Word has length 50 [2018-01-24 12:35:02,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:02,115 INFO L432 AbstractCegarLoop]: Abstraction has 253 states and 284 transitions. [2018-01-24 12:35:02,115 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-24 12:35:02,115 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 284 transitions. [2018-01-24 12:35:02,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-01-24 12:35:02,116 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:02,116 INFO L322 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] [2018-01-24 12:35:02,116 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]=== [2018-01-24 12:35:02,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1798050227, now seen corresponding path program 1 times [2018-01-24 12:35:02,117 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:02,117 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:02,117 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:02,118 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:02,118 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:02,127 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 12:35:02,262 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:02,262 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 12:35:02,262 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:35:02,262 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:35:02,263 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:35:02,263 INFO L87 Difference]: Start difference. First operand 253 states and 284 transitions. Second operand 7 states. [2018-01-24 12:35:02,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:02,421 INFO L93 Difference]: Finished difference Result 329 states and 367 transitions. [2018-01-24 12:35:02,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:35:02,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 54 [2018-01-24 12:35:02,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:02,422 INFO L225 Difference]: With dead ends: 329 [2018-01-24 12:35:02,423 INFO L226 Difference]: Without dead ends: 278 [2018-01-24 12:35:02,423 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-01-24 12:35:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2018-01-24 12:35:02,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 265. [2018-01-24 12:35:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-01-24 12:35:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 296 transitions. [2018-01-24 12:35:02,441 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 296 transitions. Word has length 54 [2018-01-24 12:35:02,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:02,441 INFO L432 AbstractCegarLoop]: Abstraction has 265 states and 296 transitions. [2018-01-24 12:35:02,441 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:35:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 296 transitions. [2018-01-24 12:35:02,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-01-24 12:35:02,442 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:02,443 INFO L322 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] [2018-01-24 12:35:02,443 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]=== [2018-01-24 12:35:02,443 INFO L82 PathProgramCache]: Analyzing trace with hash 508691472, now seen corresponding path program 1 times [2018-01-24 12:35:02,443 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:02,443 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:02,444 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:02,444 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:02,444 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:02,455 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:02,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:35:02,581 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:35:02,581 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 [2018-01-24 12:35:02,589 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:02,622 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:35:02,646 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 [2018-01-24 12:35:02,648 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 [2018-01-24 12:35:02,648 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-24 12:35:02,650 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:35:02,659 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 [2018-01-24 12:35:02,661 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 [2018-01-24 12:35:02,662 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-24 12:35:02,663 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:35:02,671 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-24 12:35:02,671 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:30, output treesize:22 [2018-01-24 12:35:02,948 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 [2018-01-24 12:35:02,964 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:35:02,974 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:35:02,980 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 [2018-01-24 12:35:02,981 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-01-24 12:35:02,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 12:35:03,020 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 [2018-01-24 12:35:03,022 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:35:03,023 INFO L700 Elim1Store]: detected not equals via solver [2018-01-24 12:35:03,028 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 [2018-01-24 12:35:03,028 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-01-24 12:35:03,036 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-24 12:35:03,044 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-01-24 12:35:03,044 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:53, output treesize:18 [2018-01-24 12:35:03,102 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:35:03,122 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:35:03,122 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 17 [2018-01-24 12:35:03,122 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-24 12:35:03,122 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-24 12:35:03,123 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=227, Unknown=2, NotChecked=0, Total=272 [2018-01-24 12:35:03,123 INFO L87 Difference]: Start difference. First operand 265 states and 296 transitions. Second operand 17 states. [2018-01-24 12:35:04,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:04,232 INFO L93 Difference]: Finished difference Result 429 states and 454 transitions. [2018-01-24 12:35:04,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-01-24 12:35:04,232 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2018-01-24 12:35:04,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:04,233 INFO L225 Difference]: With dead ends: 429 [2018-01-24 12:35:04,233 INFO L226 Difference]: Without dead ends: 394 [2018-01-24 12:35:04,234 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=212, Invalid=974, Unknown=4, NotChecked=0, Total=1190 [2018-01-24 12:35:04,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-01-24 12:35:04,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 292. [2018-01-24 12:35:04,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2018-01-24 12:35:04,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 330 transitions. [2018-01-24 12:35:04,254 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 330 transitions. Word has length 56 [2018-01-24 12:35:04,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:04,255 INFO L432 AbstractCegarLoop]: Abstraction has 292 states and 330 transitions. [2018-01-24 12:35:04,255 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-24 12:35:04,255 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 330 transitions. [2018-01-24 12:35:04,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-01-24 12:35:04,256 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:04,256 INFO L322 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] [2018-01-24 12:35:04,256 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]=== [2018-01-24 12:35:04,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1410432421, now seen corresponding path program 1 times [2018-01-24 12:35:04,256 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:04,257 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:04,257 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:04,258 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:04,258 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:04,268 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 12:35:04,348 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-24 12:35:04,348 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 [2018-01-24 12:35:04,357 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:04,388 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-24 12:35:04,439 WARN L1029 $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 [2018-01-24 12:35:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2018-01-24 12:35:04,479 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-24 12:35:04,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7] total 9 [2018-01-24 12:35:04,479 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 12:35:04,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 12:35:04,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2018-01-24 12:35:04,480 INFO L87 Difference]: Start difference. First operand 292 states and 330 transitions. Second operand 10 states. [2018-01-24 12:35:04,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:04,851 INFO L93 Difference]: Finished difference Result 332 states and 370 transitions. [2018-01-24 12:35:04,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-24 12:35:04,886 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-01-24 12:35:04,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:04,887 INFO L225 Difference]: With dead ends: 332 [2018-01-24 12:35:04,887 INFO L226 Difference]: Without dead ends: 301 [2018-01-24 12:35:04,888 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=134, Unknown=1, NotChecked=24, Total=210 [2018-01-24 12:35:04,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2018-01-24 12:35:04,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2018-01-24 12:35:04,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2018-01-24 12:35:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 338 transitions. [2018-01-24 12:35:04,907 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 338 transitions. Word has length 57 [2018-01-24 12:35:04,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:04,907 INFO L432 AbstractCegarLoop]: Abstraction has 300 states and 338 transitions. [2018-01-24 12:35:04,907 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 12:35:04,907 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 338 transitions. [2018-01-24 12:35:04,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-01-24 12:35:04,908 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:04,908 INFO L322 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] [2018-01-24 12:35:04,908 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]=== [2018-01-24 12:35:04,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1383831736, now seen corresponding path program 1 times [2018-01-24 12:35:04,908 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:04,908 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:04,909 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:04,909 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:04,909 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:04,921 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 12:35:05,185 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:05,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-24 12:35:05,186 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-24 12:35:05,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-24 12:35:05,186 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2018-01-24 12:35:05,186 INFO L87 Difference]: Start difference. First operand 300 states and 338 transitions. Second operand 17 states. [2018-01-24 12:35:06,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:06,111 INFO L93 Difference]: Finished difference Result 504 states and 554 transitions. [2018-01-24 12:35:06,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-01-24 12:35:06,111 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 59 [2018-01-24 12:35:06,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:06,113 INFO L225 Difference]: With dead ends: 504 [2018-01-24 12:35:06,113 INFO L226 Difference]: Without dead ends: 503 [2018-01-24 12:35:06,114 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=370, Invalid=1190, Unknown=0, NotChecked=0, Total=1560 [2018-01-24 12:35:06,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2018-01-24 12:35:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 310. [2018-01-24 12:35:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2018-01-24 12:35:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 350 transitions. [2018-01-24 12:35:06,136 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 350 transitions. Word has length 59 [2018-01-24 12:35:06,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:06,136 INFO L432 AbstractCegarLoop]: Abstraction has 310 states and 350 transitions. [2018-01-24 12:35:06,136 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-24 12:35:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 350 transitions. [2018-01-24 12:35:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-01-24 12:35:06,137 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:06,138 INFO L322 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] [2018-01-24 12:35:06,138 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]=== [2018-01-24 12:35:06,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1383831735, now seen corresponding path program 1 times [2018-01-24 12:35:06,138 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:06,138 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:06,139 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:06,139 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:06,139 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:06,151 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:06,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 12:35:06,725 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:06,725 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-01-24 12:35:06,726 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-01-24 12:35:06,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-01-24 12:35:06,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2018-01-24 12:35:06,726 INFO L87 Difference]: Start difference. First operand 310 states and 350 transitions. Second operand 17 states. [2018-01-24 12:35:07,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:07,669 INFO L93 Difference]: Finished difference Result 507 states and 557 transitions. [2018-01-24 12:35:07,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-01-24 12:35:07,669 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 59 [2018-01-24 12:35:07,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:07,671 INFO L225 Difference]: With dead ends: 507 [2018-01-24 12:35:07,671 INFO L226 Difference]: Without dead ends: 504 [2018-01-24 12:35:07,671 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=368, Invalid=1114, Unknown=0, NotChecked=0, Total=1482 [2018-01-24 12:35:07,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2018-01-24 12:35:07,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 317. [2018-01-24 12:35:07,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-01-24 12:35:07,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 356 transitions. [2018-01-24 12:35:07,685 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 356 transitions. Word has length 59 [2018-01-24 12:35:07,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:07,685 INFO L432 AbstractCegarLoop]: Abstraction has 317 states and 356 transitions. [2018-01-24 12:35:07,686 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-01-24 12:35:07,686 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 356 transitions. [2018-01-24 12:35:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-01-24 12:35:07,686 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:07,686 INFO L322 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] [2018-01-24 12:35:07,686 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]=== [2018-01-24 12:35:07,687 INFO L82 PathProgramCache]: Analyzing trace with hash -868408448, now seen corresponding path program 1 times [2018-01-24 12:35:07,687 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:07,687 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:07,687 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:07,687 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:07,687 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:07,695 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 12:35:07,855 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:07,855 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-24 12:35:07,855 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-24 12:35:07,856 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-24 12:35:07,856 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:35:07,856 INFO L87 Difference]: Start difference. First operand 317 states and 356 transitions. Second operand 7 states. [2018-01-24 12:35:08,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:08,099 INFO L93 Difference]: Finished difference Result 348 states and 382 transitions. [2018-01-24 12:35:08,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-24 12:35:08,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2018-01-24 12:35:08,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:08,100 INFO L225 Difference]: With dead ends: 348 [2018-01-24 12:35:08,100 INFO L226 Difference]: Without dead ends: 339 [2018-01-24 12:35:08,100 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-01-24 12:35:08,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-01-24 12:35:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 317. [2018-01-24 12:35:08,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-01-24 12:35:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 355 transitions. [2018-01-24 12:35:08,115 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 355 transitions. Word has length 62 [2018-01-24 12:35:08,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:08,115 INFO L432 AbstractCegarLoop]: Abstraction has 317 states and 355 transitions. [2018-01-24 12:35:08,115 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-24 12:35:08,115 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 355 transitions. [2018-01-24 12:35:08,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-01-24 12:35:08,116 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:08,116 INFO L322 BasicCegarLoop]: trace histogram [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] [2018-01-24 12:35:08,116 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]=== [2018-01-24 12:35:08,116 INFO L82 PathProgramCache]: Analyzing trace with hash -64861364, now seen corresponding path program 1 times [2018-01-24 12:35:08,116 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:08,117 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:08,117 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:08,117 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:08,117 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:08,123 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:08,246 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:35:08,246 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:08,246 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-24 12:35:08,246 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-24 12:35:08,247 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-24 12:35:08,247 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-24 12:35:08,247 INFO L87 Difference]: Start difference. First operand 317 states and 355 transitions. Second operand 6 states. [2018-01-24 12:35:08,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:08,335 INFO L93 Difference]: Finished difference Result 483 states and 547 transitions. [2018-01-24 12:35:08,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:35:08,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-01-24 12:35:08,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:08,337 INFO L225 Difference]: With dead ends: 483 [2018-01-24 12:35:08,337 INFO L226 Difference]: Without dead ends: 308 [2018-01-24 12:35:08,338 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-24 12:35:08,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2018-01-24 12:35:08,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2018-01-24 12:35:08,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2018-01-24 12:35:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 340 transitions. [2018-01-24 12:35:08,364 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 340 transitions. Word has length 64 [2018-01-24 12:35:08,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:08,365 INFO L432 AbstractCegarLoop]: Abstraction has 308 states and 340 transitions. [2018-01-24 12:35:08,365 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-24 12:35:08,365 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 340 transitions. [2018-01-24 12:35:08,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-01-24 12:35:08,366 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:08,366 INFO L322 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] [2018-01-24 12:35:08,366 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]=== [2018-01-24 12:35:08,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1078175451, now seen corresponding path program 1 times [2018-01-24 12:35:08,366 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:08,367 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:08,367 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:08,367 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:08,367 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:08,379 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-01-24 12:35:08,590 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:08,590 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-01-24 12:35:08,590 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-01-24 12:35:08,590 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-01-24 12:35:08,590 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2018-01-24 12:35:08,591 INFO L87 Difference]: Start difference. First operand 308 states and 340 transitions. Second operand 11 states. [2018-01-24 12:35:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:09,172 INFO L93 Difference]: Finished difference Result 670 states and 748 transitions. [2018-01-24 12:35:09,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-01-24 12:35:09,172 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 64 [2018-01-24 12:35:09,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:09,174 INFO L225 Difference]: With dead ends: 670 [2018-01-24 12:35:09,174 INFO L226 Difference]: Without dead ends: 457 [2018-01-24 12:35:09,175 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2018-01-24 12:35:09,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-01-24 12:35:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 278. [2018-01-24 12:35:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2018-01-24 12:35:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 308 transitions. [2018-01-24 12:35:09,191 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 308 transitions. Word has length 64 [2018-01-24 12:35:09,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:09,191 INFO L432 AbstractCegarLoop]: Abstraction has 278 states and 308 transitions. [2018-01-24 12:35:09,191 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-01-24 12:35:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 308 transitions. [2018-01-24 12:35:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-01-24 12:35:09,192 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:09,192 INFO L322 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] [2018-01-24 12:35:09,192 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]=== [2018-01-24 12:35:09,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1463894548, now seen corresponding path program 1 times [2018-01-24 12:35:09,193 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:09,193 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:09,193 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:09,194 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:09,194 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:09,205 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:09,391 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-01-24 12:35:09,391 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:09,391 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-24 12:35:09,391 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-24 12:35:09,392 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-24 12:35:09,392 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-01-24 12:35:09,392 INFO L87 Difference]: Start difference. First operand 278 states and 308 transitions. Second operand 10 states. [2018-01-24 12:35:09,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:09,739 INFO L93 Difference]: Finished difference Result 436 states and 486 transitions. [2018-01-24 12:35:09,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-24 12:35:09,740 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 67 [2018-01-24 12:35:09,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:09,741 INFO L225 Difference]: With dead ends: 436 [2018-01-24 12:35:09,741 INFO L226 Difference]: Without dead ends: 435 [2018-01-24 12:35:09,742 INFO L525 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2018-01-24 12:35:09,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2018-01-24 12:35:09,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 279. [2018-01-24 12:35:09,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2018-01-24 12:35:09,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 309 transitions. [2018-01-24 12:35:09,755 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 309 transitions. Word has length 67 [2018-01-24 12:35:09,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:09,756 INFO L432 AbstractCegarLoop]: Abstraction has 279 states and 309 transitions. [2018-01-24 12:35:09,756 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-24 12:35:09,756 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 309 transitions. [2018-01-24 12:35:09,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-01-24 12:35:09,756 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:09,756 INFO L322 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] [2018-01-24 12:35:09,756 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]=== [2018-01-24 12:35:09,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1469129984, now seen corresponding path program 1 times [2018-01-24 12:35:09,757 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:09,757 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:09,757 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:09,757 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:09,757 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:09,764 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-24 12:35:09,846 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-24 12:35:09,846 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-24 12:35:09,847 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-24 12:35:09,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-24 12:35:09,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-24 12:35:09,847 INFO L87 Difference]: Start difference. First operand 279 states and 309 transitions. Second operand 5 states. [2018-01-24 12:35:10,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-24 12:35:10,001 INFO L93 Difference]: Finished difference Result 478 states and 536 transitions. [2018-01-24 12:35:10,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-24 12:35:10,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2018-01-24 12:35:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-24 12:35:10,023 INFO L225 Difference]: With dead ends: 478 [2018-01-24 12:35:10,023 INFO L226 Difference]: Without dead ends: 295 [2018-01-24 12:35:10,023 INFO L525 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 [2018-01-24 12:35:10,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2018-01-24 12:35:10,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 283. [2018-01-24 12:35:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2018-01-24 12:35:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 313 transitions. [2018-01-24 12:35:10,043 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 313 transitions. Word has length 69 [2018-01-24 12:35:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-24 12:35:10,043 INFO L432 AbstractCegarLoop]: Abstraction has 283 states and 313 transitions. [2018-01-24 12:35:10,043 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-24 12:35:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 313 transitions. [2018-01-24 12:35:10,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-01-24 12:35:10,043 INFO L314 BasicCegarLoop]: Found error trace [2018-01-24 12:35:10,044 INFO L322 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] [2018-01-24 12:35:10,044 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]=== [2018-01-24 12:35:10,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1957356603, now seen corresponding path program 1 times [2018-01-24 12:35:10,044 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-24 12:35:10,044 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-24 12:35:10,044 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:10,045 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-24 12:35:10,045 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-24 12:35:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-24 12:35:10,057 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-24 12:35:10,215 ERROR L119 erpolLogProxyWrapper]: Could not assert interpolant [2018-01-24 12:35:10,216 ERROR L119 erpolLogProxyWrapper]: Interpolant 27 not inductive: (Check returned sat) [2018-01-24 12:35:10,217 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:279) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:162) 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:368) 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:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:117) 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) [2018-01-24 12:35:10,221 INFO L168 Benchmark]: Toolchain (without parser) took 25722.54 ms. Allocated memory was 307.2 MB in the beginning and 680.0 MB in the end (delta: 372.8 MB). Free memory was 267.3 MB in the beginning and 494.2 MB in the end (delta: -226.9 MB). Peak memory consumption was 145.9 MB. Max. memory is 5.3 GB. [2018-01-24 12:35:10,223 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 307.2 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-24 12:35:10,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.73 ms. Allocated memory is still 307.2 MB. Free memory was 266.3 MB in the beginning and 254.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. [2018-01-24 12:35:10,223 INFO L168 Benchmark]: Boogie Preprocessor took 42.08 ms. Allocated memory is still 307.2 MB. Free memory was 254.1 MB in the beginning and 251.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:35:10,223 INFO L168 Benchmark]: RCFGBuilder took 624.16 ms. Allocated memory is still 307.2 MB. Free memory was 251.1 MB in the beginning and 207.1 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 5.3 GB. [2018-01-24 12:35:10,224 INFO L168 Benchmark]: TraceAbstraction took 24821.05 ms. Allocated memory was 307.2 MB in the beginning and 680.0 MB in the end (delta: 372.8 MB). Free memory was 206.1 MB in the beginning and 494.2 MB in the end (delta: -288.1 MB). Peak memory consumption was 84.6 MB. Max. memory is 5.3 GB. [2018-01-24 12:35:10,226 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 307.2 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 227.73 ms. Allocated memory is still 307.2 MB. Free memory was 266.3 MB in the beginning and 254.1 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 42.08 ms. Allocated memory is still 307.2 MB. Free memory was 254.1 MB in the beginning and 251.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 624.16 ms. Allocated memory is still 307.2 MB. Free memory was 251.1 MB in the beginning and 207.1 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 24821.05 ms. Allocated memory was 307.2 MB in the beginning and 680.0 MB in the end (delta: 372.8 MB). Free memory was 206.1 MB in the beginning and 494.2 MB in the end (delta: -288.1 MB). Peak memory consumption was 84.6 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.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-24_12-35-10-234.csv Received shutdown request...