java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/memsafety-ext2/split_list_test05_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-acfac67 [2018-01-28 22:04:03,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-28 22:04:03,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-28 22:04:03,610 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-28 22:04:03,611 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-28 22:04:03,612 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-28 22:04:03,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-28 22:04:03,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-28 22:04:03,617 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-28 22:04:03,618 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-28 22:04:03,619 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-28 22:04:03,620 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-28 22:04:03,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-28 22:04:03,622 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-28 22:04:03,623 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-28 22:04:03,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-28 22:04:03,628 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-28 22:04:03,630 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-28 22:04:03,631 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-28 22:04:03,633 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-28 22:04:03,635 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-28 22:04:03,635 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-28 22:04:03,636 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-28 22:04:03,637 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-28 22:04:03,638 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-28 22:04:03,639 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-28 22:04:03,639 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-28 22:04:03,640 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-28 22:04:03,640 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-28 22:04:03,640 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-28 22:04:03,641 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-28 22:04:03,642 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-28 22:04:03,650 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-28 22:04:03,650 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-28 22:04:03,651 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-28 22:04:03,651 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-28 22:04:03,651 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-28 22:04:03,651 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-28 22:04:03,651 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-28 22:04:03,652 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-28 22:04:03,652 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-28 22:04:03,652 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-28 22:04:03,652 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-28 22:04:03,653 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-28 22:04:03,653 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-28 22:04:03,653 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-28 22:04:03,653 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-28 22:04:03,653 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-28 22:04:03,653 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-28 22:04:03,653 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-28 22:04:03,653 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-28 22:04:03,654 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-28 22:04:03,654 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-28 22:04:03,654 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-28 22:04:03,654 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-28 22:04:03,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-28 22:04:03,654 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-28 22:04:03,655 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-28 22:04:03,655 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-28 22:04:03,655 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-28 22:04:03,655 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-28 22:04:03,655 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-28 22:04:03,655 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-28 22:04:03,656 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-28 22:04:03,656 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-28 22:04:03,656 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-28 22:04:03,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-28 22:04:03,705 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-28 22:04:03,709 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-28 22:04:03,710 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-28 22:04:03,710 INFO L276 PluginConnector]: CDTParser initialized [2018-01-28 22:04:03,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext2/split_list_test05_true-valid-memsafety.i [2018-01-28 22:04:03,867 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-28 22:04:03,875 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-28 22:04:03,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-28 22:04:03,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-28 22:04:03,884 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-28 22:04:03,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 10:04:03" (1/1) ... [2018-01-28 22:04:03,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322f4c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:03, skipping insertion in model container [2018-01-28 22:04:03,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 10:04:03" (1/1) ... [2018-01-28 22:04:03,908 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-28 22:04:03,952 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-28 22:04:04,109 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-28 22:04:04,138 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-28 22:04:04,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04 WrapperNode [2018-01-28 22:04:04,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-28 22:04:04,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-28 22:04:04,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-28 22:04:04,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-28 22:04:04,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (1/1) ... [2018-01-28 22:04:04,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (1/1) ... [2018-01-28 22:04:04,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (1/1) ... [2018-01-28 22:04:04,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (1/1) ... [2018-01-28 22:04:04,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (1/1) ... [2018-01-28 22:04:04,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (1/1) ... [2018-01-28 22:04:04,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (1/1) ... [2018-01-28 22:04:04,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-28 22:04:04,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-28 22:04:04,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-28 22:04:04,215 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-28 22:04:04,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-28 22:04:04,267 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-28 22:04:04,267 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-28 22:04:04,267 INFO L136 BoogieDeclarations]: Found implementation of procedure containsHead [2018-01-28 22:04:04,267 INFO L136 BoogieDeclarations]: Found implementation of procedure containsBody [2018-01-28 22:04:04,267 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-01-28 22:04:04,267 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-28 22:04:04,267 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-01-28 22:04:04,267 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-01-28 22:04:04,268 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-28 22:04:04,268 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-28 22:04:04,268 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-28 22:04:04,268 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-28 22:04:04,268 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-28 22:04:04,268 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-01-28 22:04:04,269 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2018-01-28 22:04:04,269 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-28 22:04:04,269 INFO L128 BoogieDeclarations]: Found specification of procedure containsHead [2018-01-28 22:04:04,269 INFO L128 BoogieDeclarations]: Found specification of procedure containsBody [2018-01-28 22:04:04,269 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-01-28 22:04:04,269 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-28 22:04:04,269 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-28 22:04:04,270 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-28 22:04:05,322 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-28 22:04:05,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 10:04:05 BoogieIcfgContainer [2018-01-28 22:04:05,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-28 22:04:05,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-28 22:04:05,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-28 22:04:05,327 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-28 22:04:05,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 10:04:03" (1/3) ... [2018-01-28 22:04:05,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417abb45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 10:04:05, skipping insertion in model container [2018-01-28 22:04:05,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 10:04:04" (2/3) ... [2018-01-28 22:04:05,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417abb45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 10:04:05, skipping insertion in model container [2018-01-28 22:04:05,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 10:04:05" (3/3) ... [2018-01-28 22:04:05,330 INFO L107 eAbstractionObserver]: Analyzing ICFG split_list_test05_true-valid-memsafety.i [2018-01-28 22:04:05,337 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-28 22:04:05,344 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 141 error locations. [2018-01-28 22:04:05,389 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-28 22:04:05,389 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-28 22:04:05,389 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-28 22:04:05,389 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-28 22:04:05,389 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-28 22:04:05,389 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-28 22:04:05,389 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-28 22:04:05,390 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-28 22:04:05,390 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-28 22:04:05,417 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states. [2018-01-28 22:04:05,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-28 22:04:05,422 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:05,423 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:05,423 INFO L371 AbstractCegarLoop]: === Iteration 1 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:05,427 INFO L82 PathProgramCache]: Analyzing trace with hash 406044143, now seen corresponding path program 1 times [2018-01-28 22:04:05,429 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:05,429 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:05,470 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:05,470 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:05,470 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:05,514 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:05,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:05,682 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:04:05,683 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 22:04:05,684 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-28 22:04:05,699 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-28 22:04:05,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-28 22:04:05,703 INFO L87 Difference]: Start difference. First operand 435 states. Second operand 4 states. [2018-01-28 22:04:06,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:06,187 INFO L93 Difference]: Finished difference Result 928 states and 1039 transitions. [2018-01-28 22:04:06,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-28 22:04:06,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-28 22:04:06,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:06,203 INFO L225 Difference]: With dead ends: 928 [2018-01-28 22:04:06,204 INFO L226 Difference]: Without dead ends: 503 [2018-01-28 22:04:06,211 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:04:06,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2018-01-28 22:04:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 450. [2018-01-28 22:04:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-01-28 22:04:06,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 494 transitions. [2018-01-28 22:04:06,276 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 494 transitions. Word has length 9 [2018-01-28 22:04:06,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:06,276 INFO L432 AbstractCegarLoop]: Abstraction has 450 states and 494 transitions. [2018-01-28 22:04:06,276 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-28 22:04:06,277 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 494 transitions. [2018-01-28 22:04:06,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-28 22:04:06,277 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:06,277 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:06,278 INFO L371 AbstractCegarLoop]: === Iteration 2 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:06,278 INFO L82 PathProgramCache]: Analyzing trace with hash 406044144, now seen corresponding path program 1 times [2018-01-28 22:04:06,278 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:06,278 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:06,279 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:06,280 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:06,280 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:06,297 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:06,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:06,370 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:04:06,371 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 22:04:06,372 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-28 22:04:06,372 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-28 22:04:06,372 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-28 22:04:06,372 INFO L87 Difference]: Start difference. First operand 450 states and 494 transitions. Second operand 4 states. [2018-01-28 22:04:06,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:06,649 INFO L93 Difference]: Finished difference Result 460 states and 506 transitions. [2018-01-28 22:04:06,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-28 22:04:06,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-28 22:04:06,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:06,653 INFO L225 Difference]: With dead ends: 460 [2018-01-28 22:04:06,654 INFO L226 Difference]: Without dead ends: 458 [2018-01-28 22:04:06,655 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:04:06,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2018-01-28 22:04:06,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 448. [2018-01-28 22:04:06,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2018-01-28 22:04:06,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 492 transitions. [2018-01-28 22:04:06,685 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 492 transitions. Word has length 9 [2018-01-28 22:04:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:06,686 INFO L432 AbstractCegarLoop]: Abstraction has 448 states and 492 transitions. [2018-01-28 22:04:06,686 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-28 22:04:06,686 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 492 transitions. [2018-01-28 22:04:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-28 22:04:06,687 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:06,687 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:06,687 INFO L371 AbstractCegarLoop]: === Iteration 3 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:06,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1367099590, now seen corresponding path program 1 times [2018-01-28 22:04:06,688 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:06,688 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:06,689 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:06,689 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:06,689 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:06,711 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:06,784 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:04:06,785 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 22:04:06,785 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-28 22:04:06,785 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-28 22:04:06,785 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-28 22:04:06,786 INFO L87 Difference]: Start difference. First operand 448 states and 492 transitions. Second operand 4 states. [2018-01-28 22:04:07,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:07,049 INFO L93 Difference]: Finished difference Result 448 states and 492 transitions. [2018-01-28 22:04:07,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-28 22:04:07,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-28 22:04:07,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:07,052 INFO L225 Difference]: With dead ends: 448 [2018-01-28 22:04:07,052 INFO L226 Difference]: Without dead ends: 443 [2018-01-28 22:04:07,053 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:04:07,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2018-01-28 22:04:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2018-01-28 22:04:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-01-28 22:04:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 487 transitions. [2018-01-28 22:04:07,073 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 487 transitions. Word has length 23 [2018-01-28 22:04:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:07,073 INFO L432 AbstractCegarLoop]: Abstraction has 443 states and 487 transitions. [2018-01-28 22:04:07,073 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-28 22:04:07,073 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 487 transitions. [2018-01-28 22:04:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-28 22:04:07,074 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:07,074 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:07,074 INFO L371 AbstractCegarLoop]: === Iteration 4 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:07,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1367099589, now seen corresponding path program 1 times [2018-01-28 22:04:07,075 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:07,075 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:07,076 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:07,076 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:07,076 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:07,094 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:07,141 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:04:07,141 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-28 22:04:07,142 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-28 22:04:07,142 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-28 22:04:07,142 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-28 22:04:07,142 INFO L87 Difference]: Start difference. First operand 443 states and 487 transitions. Second operand 4 states. [2018-01-28 22:04:07,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:07,411 INFO L93 Difference]: Finished difference Result 443 states and 487 transitions. [2018-01-28 22:04:07,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-28 22:04:07,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-28 22:04:07,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:07,414 INFO L225 Difference]: With dead ends: 443 [2018-01-28 22:04:07,415 INFO L226 Difference]: Without dead ends: 438 [2018-01-28 22:04:07,415 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-28 22:04:07,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2018-01-28 22:04:07,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2018-01-28 22:04:07,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2018-01-28 22:04:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 482 transitions. [2018-01-28 22:04:07,433 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 482 transitions. Word has length 23 [2018-01-28 22:04:07,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:07,433 INFO L432 AbstractCegarLoop]: Abstraction has 438 states and 482 transitions. [2018-01-28 22:04:07,433 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-28 22:04:07,433 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 482 transitions. [2018-01-28 22:04:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-28 22:04:07,434 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:07,434 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:07,434 INFO L371 AbstractCegarLoop]: === Iteration 5 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:07,435 INFO L82 PathProgramCache]: Analyzing trace with hash 569586189, now seen corresponding path program 1 times [2018-01-28 22:04:07,435 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:07,435 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:07,436 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:07,436 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:07,436 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:07,459 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:07,559 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:04:07,559 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-28 22:04:07,560 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-28 22:04:07,560 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-28 22:04:07,560 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-01-28 22:04:07,560 INFO L87 Difference]: Start difference. First operand 438 states and 482 transitions. Second operand 7 states. [2018-01-28 22:04:08,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:08,172 INFO L93 Difference]: Finished difference Result 481 states and 524 transitions. [2018-01-28 22:04:08,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-28 22:04:08,172 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-01-28 22:04:08,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:08,174 INFO L225 Difference]: With dead ends: 481 [2018-01-28 22:04:08,174 INFO L226 Difference]: Without dead ends: 473 [2018-01-28 22:04:08,175 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:04:08,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2018-01-28 22:04:08,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 430. [2018-01-28 22:04:08,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2018-01-28 22:04:08,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 474 transitions. [2018-01-28 22:04:08,189 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 474 transitions. Word has length 24 [2018-01-28 22:04:08,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:08,189 INFO L432 AbstractCegarLoop]: Abstraction has 430 states and 474 transitions. [2018-01-28 22:04:08,189 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-28 22:04:08,190 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 474 transitions. [2018-01-28 22:04:08,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-28 22:04:08,190 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:08,190 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:08,191 INFO L371 AbstractCegarLoop]: === Iteration 6 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:08,191 INFO L82 PathProgramCache]: Analyzing trace with hash 569586190, now seen corresponding path program 1 times [2018-01-28 22:04:08,191 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:08,191 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:08,192 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:08,192 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:08,192 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:08,210 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:08,330 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:04:08,330 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-28 22:04:08,330 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-28 22:04:08,331 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-28 22:04:08,331 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-01-28 22:04:08,331 INFO L87 Difference]: Start difference. First operand 430 states and 474 transitions. Second operand 8 states. [2018-01-28 22:04:09,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:09,006 INFO L93 Difference]: Finished difference Result 482 states and 528 transitions. [2018-01-28 22:04:09,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-28 22:04:09,007 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2018-01-28 22:04:09,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:09,009 INFO L225 Difference]: With dead ends: 482 [2018-01-28 22:04:09,010 INFO L226 Difference]: Without dead ends: 473 [2018-01-28 22:04:09,010 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-01-28 22:04:09,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2018-01-28 22:04:09,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 421. [2018-01-28 22:04:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2018-01-28 22:04:09,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 464 transitions. [2018-01-28 22:04:09,029 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 464 transitions. Word has length 24 [2018-01-28 22:04:09,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:09,030 INFO L432 AbstractCegarLoop]: Abstraction has 421 states and 464 transitions. [2018-01-28 22:04:09,030 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-28 22:04:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 464 transitions. [2018-01-28 22:04:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-01-28 22:04:09,031 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:09,031 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:09,032 INFO L371 AbstractCegarLoop]: === Iteration 7 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:09,032 INFO L82 PathProgramCache]: Analyzing trace with hash 940695871, now seen corresponding path program 1 times [2018-01-28 22:04:09,032 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:09,032 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:09,033 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:09,033 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:09,033 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:09,056 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:09,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:09,314 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:04:09,314 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-01-28 22:04:09,314 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-28 22:04:09,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-28 22:04:09,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-28 22:04:09,315 INFO L87 Difference]: Start difference. First operand 421 states and 464 transitions. Second operand 10 states. [2018-01-28 22:04:10,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:10,017 INFO L93 Difference]: Finished difference Result 867 states and 958 transitions. [2018-01-28 22:04:10,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-28 22:04:10,019 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2018-01-28 22:04:10,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:10,022 INFO L225 Difference]: With dead ends: 867 [2018-01-28 22:04:10,022 INFO L226 Difference]: Without dead ends: 457 [2018-01-28 22:04:10,024 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2018-01-28 22:04:10,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-01-28 22:04:10,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 439. [2018-01-28 22:04:10,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2018-01-28 22:04:10,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 484 transitions. [2018-01-28 22:04:10,046 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 484 transitions. Word has length 36 [2018-01-28 22:04:10,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:10,047 INFO L432 AbstractCegarLoop]: Abstraction has 439 states and 484 transitions. [2018-01-28 22:04:10,047 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-28 22:04:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 484 transitions. [2018-01-28 22:04:10,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-01-28 22:04:10,048 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:10,048 INFO L330 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:10,049 INFO L371 AbstractCegarLoop]: === Iteration 8 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:10,049 INFO L82 PathProgramCache]: Analyzing trace with hash 70850236, now seen corresponding path program 1 times [2018-01-28 22:04:10,049 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:10,049 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:10,050 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:10,050 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:10,050 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:10,072 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:10,404 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-28 22:04:10,404 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-28 22:04:10,404 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-28 22:04:10,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-28 22:04:10,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-01-28 22:04:10,405 INFO L87 Difference]: Start difference. First operand 439 states and 484 transitions. Second operand 13 states. [2018-01-28 22:04:11,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:11,276 INFO L93 Difference]: Finished difference Result 899 states and 989 transitions. [2018-01-28 22:04:11,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-28 22:04:11,276 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2018-01-28 22:04:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:11,278 INFO L225 Difference]: With dead ends: 899 [2018-01-28 22:04:11,278 INFO L226 Difference]: Without dead ends: 489 [2018-01-28 22:04:11,280 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2018-01-28 22:04:11,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2018-01-28 22:04:11,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 442. [2018-01-28 22:04:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2018-01-28 22:04:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 487 transitions. [2018-01-28 22:04:11,293 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 487 transitions. Word has length 38 [2018-01-28 22:04:11,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:11,293 INFO L432 AbstractCegarLoop]: Abstraction has 442 states and 487 transitions. [2018-01-28 22:04:11,293 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-28 22:04:11,293 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 487 transitions. [2018-01-28 22:04:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-01-28 22:04:11,295 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:11,296 INFO L330 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] [2018-01-28 22:04:11,296 INFO L371 AbstractCegarLoop]: === Iteration 9 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:11,296 INFO L82 PathProgramCache]: Analyzing trace with hash 960779821, now seen corresponding path program 1 times [2018-01-28 22:04:11,296 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:11,296 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:11,297 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:11,297 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:11,298 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:11,329 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:12,102 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-28 22:04:12,102 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-28 22:04:12,108 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:12,177 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-28 22:04:12,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-28 22:04:12,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:12,535 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:12,537 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:12,545 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:12,546 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:35, output treesize:31 [2018-01-28 22:04:12,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-01-28 22:04:12,655 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 24 treesize of output 23 [2018-01-28 22:04:12,655 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:12,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2018-01-28 22:04:12,714 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-01-28 22:04:12,736 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:04:12,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-01-28 22:04:12,759 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:44, output treesize:77 [2018-01-28 22:04:12,855 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 41 treesize of output 36 [2018-01-28 22:04:12,857 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:12,859 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 18 treesize of output 27 [2018-01-28 22:04:12,860 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:12,868 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:12,911 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 71 [2018-01-28 22:04:12,922 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:12,923 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 67 treesize of output 82 [2018-01-28 22:04:12,924 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:12,970 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:12,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 60 [2018-01-28 22:04:12,979 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-01-28 22:04:13,010 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:04:13,040 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-01-28 22:04:13,041 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:116, output treesize:135 [2018-01-28 22:04:13,198 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:13,208 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:13,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 66 [2018-01-28 22:04:13,210 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:13,423 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:13,423 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:159, output treesize:66 [2018-01-28 22:04:13,594 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:13,596 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:13,597 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:13,598 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 52 [2018-01-28 22:04:13,599 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:13,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:13,624 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:77, output treesize:85 [2018-01-28 22:04:13,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 75 [2018-01-28 22:04:13,741 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 12 treesize of output 1 [2018-01-28 22:04:13,742 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:13,748 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:13,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:13,762 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:100, output treesize:85 [2018-01-28 22:04:13,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 73 [2018-01-28 22:04:13,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:13,830 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:13,839 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:13,854 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:13,854 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:98, output treesize:85 [2018-01-28 22:04:13,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 73 [2018-01-28 22:04:13,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:13,922 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:13,932 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:13,973 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:13,973 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:98, output treesize:94 [2018-01-28 22:04:14,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 65 [2018-01-28 22:04:14,124 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 7 treesize of output 1 [2018-01-28 22:04:14,125 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:14,138 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:14,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 8 [2018-01-28 22:04:14,140 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:14,148 INFO L682 Elim1Store]: detected equality via solver [2018-01-28 22:04:14,149 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2018-01-28 22:04:14,150 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:14,154 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:14,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:14,165 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:103, output treesize:28 [2018-01-28 22:04:14,223 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:14,244 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-28 22:04:14,244 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 40 [2018-01-28 22:04:14,244 INFO L409 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-01-28 22:04:14,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-01-28 22:04:14,245 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1506, Unknown=0, NotChecked=0, Total=1640 [2018-01-28 22:04:14,245 INFO L87 Difference]: Start difference. First operand 442 states and 487 transitions. Second operand 41 states. [2018-01-28 22:04:18,250 WARN L146 SmtUtils]: Spent 100ms on a formula simplification. DAG size of input: 128 DAG size of output 51 [2018-01-28 22:04:19,162 WARN L146 SmtUtils]: Spent 735ms on a formula simplification. DAG size of input: 108 DAG size of output 73 [2018-01-28 22:04:23,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:23,306 INFO L93 Difference]: Finished difference Result 646 states and 750 transitions. [2018-01-28 22:04:23,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-01-28 22:04:23,306 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 60 [2018-01-28 22:04:23,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:23,312 INFO L225 Difference]: With dead ends: 646 [2018-01-28 22:04:23,312 INFO L226 Difference]: Without dead ends: 645 [2018-01-28 22:04:23,314 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1197 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=621, Invalid=4071, Unknown=0, NotChecked=0, Total=4692 [2018-01-28 22:04:23,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2018-01-28 22:04:23,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 450. [2018-01-28 22:04:23,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-01-28 22:04:23,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 494 transitions. [2018-01-28 22:04:23,345 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 494 transitions. Word has length 60 [2018-01-28 22:04:23,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:23,346 INFO L432 AbstractCegarLoop]: Abstraction has 450 states and 494 transitions. [2018-01-28 22:04:23,346 INFO L433 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-01-28 22:04:23,346 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 494 transitions. [2018-01-28 22:04:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-01-28 22:04:23,348 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:23,348 INFO L330 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] [2018-01-28 22:04:23,348 INFO L371 AbstractCegarLoop]: === Iteration 10 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:23,348 INFO L82 PathProgramCache]: Analyzing trace with hash 960779822, now seen corresponding path program 1 times [2018-01-28 22:04:23,349 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:23,349 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:23,350 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:23,350 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:23,350 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:23,386 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:24,115 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:24,116 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-28 22:04:24,116 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-28 22:04:24,122 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:24,162 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-28 22:04:24,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-28 22:04:24,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:24,281 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,282 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,290 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-01-28 22:04:24,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:24,292 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,293 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,299 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,299 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:42, output treesize:34 [2018-01-28 22:04:24,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-01-28 22:04:24,342 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 24 treesize of output 23 [2018-01-28 22:04:24,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2018-01-28 22:04:24,362 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-01-28 22:04:24,373 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:04:24,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 35 [2018-01-28 22:04:24,402 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 24 treesize of output 23 [2018-01-28 22:04:24,402 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30 [2018-01-28 22:04:24,424 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-01-28 22:04:24,436 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:04:24,457 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 4 xjuncts. [2018-01-28 22:04:24,458 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 2 variables, input treesize:60, output treesize:203 [2018-01-28 22:04:24,539 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 67 treesize of output 62 [2018-01-28 22:04:24,541 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:24,542 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 18 treesize of output 27 [2018-01-28 22:04:24,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,554 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,599 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 63 treesize of output 58 [2018-01-28 22:04:24,601 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:24,602 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 18 treesize of output 27 [2018-01-28 22:04:24,602 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,613 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 162 treesize of output 162 [2018-01-28 22:04:24,668 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:24,668 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 155 treesize of output 182 [2018-01-28 22:04:24,669 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,730 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:24,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 149 [2018-01-28 22:04:24,743 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-01-28 22:04:24,787 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:04:24,861 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 152 treesize of output 143 [2018-01-28 22:04:24,866 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:24,867 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 145 treesize of output 172 [2018-01-28 22:04:24,867 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,916 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:24,926 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 121 treesize of output 137 [2018-01-28 22:04:24,927 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-01-28 22:04:24,965 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-01-28 22:04:24,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 77 [2018-01-28 22:04:24,972 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:24,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 51 [2018-01-28 22:04:24,974 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:24,984 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-01-28 22:04:25,025 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:230, output treesize:257 [2018-01-28 22:04:25,107 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:25,108 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:25,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 141 [2018-01-28 22:04:25,109 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,167 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:272, output treesize:141 [2018-01-28 22:04:25,324 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:25,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2018-01-28 22:04:25,326 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,346 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:25,347 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:25,348 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:25,348 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-01-28 22:04:25,348 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,362 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,362 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:152, output treesize:144 [2018-01-28 22:04:25,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 137 [2018-01-28 22:04:25,473 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 12 treesize of output 1 [2018-01-28 22:04:25,473 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,485 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 151 [2018-01-28 22:04:25,515 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 12 treesize of output 1 [2018-01-28 22:04:25,515 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,528 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,545 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:174, output treesize:144 [2018-01-28 22:04:25,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 149 [2018-01-28 22:04:25,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:25,564 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,581 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 135 [2018-01-28 22:04:25,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:25,615 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,629 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,650 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:170, output treesize:144 [2018-01-28 22:04:25,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 149 [2018-01-28 22:04:25,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:25,671 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,689 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 135 [2018-01-28 22:04:25,726 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-01-28 22:04:25,726 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,742 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,763 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:25,763 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:170, output treesize:162 [2018-01-28 22:04:25,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 116 [2018-01-28 22:04:25,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 52 [2018-01-28 22:04:25,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 7 treesize of output 1 [2018-01-28 22:04:25,858 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,876 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:25,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2018-01-28 22:04:25,877 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,889 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,907 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 69 [2018-01-28 22:04:25,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 7 treesize of output 1 [2018-01-28 22:04:25,910 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,927 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:25,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2018-01-28 22:04:25,928 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 28 treesize of output 13 [2018-01-28 22:04:25,937 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,945 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:25,952 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:25,952 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:180, output treesize:22 [2018-01-28 22:04:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-28 22:04:26,049 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-28 22:04:26,049 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 35 [2018-01-28 22:04:26,049 INFO L409 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-01-28 22:04:26,050 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-01-28 22:04:26,050 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1172, Unknown=0, NotChecked=0, Total=1260 [2018-01-28 22:04:26,050 INFO L87 Difference]: Start difference. First operand 450 states and 494 transitions. Second operand 36 states. [2018-01-28 22:04:27,060 WARN L146 SmtUtils]: Spent 173ms on a formula simplification. DAG size of input: 123 DAG size of output 113 [2018-01-28 22:04:27,564 WARN L146 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 119 DAG size of output 75 [2018-01-28 22:04:27,749 WARN L146 SmtUtils]: Spent 135ms on a formula simplification. DAG size of input: 121 DAG size of output 77 [2018-01-28 22:04:28,315 WARN L146 SmtUtils]: Spent 160ms on a formula simplification. DAG size of input: 173 DAG size of output 70 [2018-01-28 22:04:28,510 WARN L146 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 130 DAG size of output 86 [2018-01-28 22:04:28,713 WARN L146 SmtUtils]: Spent 161ms on a formula simplification. DAG size of input: 143 DAG size of output 91 [2018-01-28 22:04:34,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:34,183 INFO L93 Difference]: Finished difference Result 644 states and 748 transitions. [2018-01-28 22:04:34,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-01-28 22:04:34,184 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 60 [2018-01-28 22:04:34,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:34,187 INFO L225 Difference]: With dead ends: 644 [2018-01-28 22:04:34,188 INFO L226 Difference]: Without dead ends: 643 [2018-01-28 22:04:34,189 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=551, Invalid=3481, Unknown=0, NotChecked=0, Total=4032 [2018-01-28 22:04:34,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2018-01-28 22:04:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 449. [2018-01-28 22:04:34,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2018-01-28 22:04:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 493 transitions. [2018-01-28 22:04:34,216 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 493 transitions. Word has length 60 [2018-01-28 22:04:34,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:34,216 INFO L432 AbstractCegarLoop]: Abstraction has 449 states and 493 transitions. [2018-01-28 22:04:34,217 INFO L433 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-01-28 22:04:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 493 transitions. [2018-01-28 22:04:34,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-01-28 22:04:34,224 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:34,224 INFO L330 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:34,224 INFO L371 AbstractCegarLoop]: === Iteration 11 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:34,225 INFO L82 PathProgramCache]: Analyzing trace with hash -197519616, now seen corresponding path program 1 times [2018-01-28 22:04:34,225 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:34,225 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:34,226 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:34,226 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:34,226 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:34,258 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1890 backedges. 10 proven. 130 refuted. 0 times theorem prover too weak. 1750 trivial. 0 not checked. [2018-01-28 22:04:34,455 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-28 22:04:34,455 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-28 22:04:34,463 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:34,632 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-28 22:04:34,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1890 backedges. 361 proven. 0 refuted. 0 times theorem prover too weak. 1529 trivial. 0 not checked. [2018-01-28 22:04:34,704 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-28 22:04:34,705 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2018-01-28 22:04:34,705 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-28 22:04:34,705 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-28 22:04:34,705 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-28 22:04:34,706 INFO L87 Difference]: Start difference. First operand 449 states and 493 transitions. Second operand 3 states. [2018-01-28 22:04:34,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:04:34,737 INFO L93 Difference]: Finished difference Result 858 states and 961 transitions. [2018-01-28 22:04:34,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-28 22:04:34,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 329 [2018-01-28 22:04:34,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:04:34,740 INFO L225 Difference]: With dead ends: 858 [2018-01-28 22:04:34,740 INFO L226 Difference]: Without dead ends: 450 [2018-01-28 22:04:34,742 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-28 22:04:34,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2018-01-28 22:04:34,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2018-01-28 22:04:34,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-01-28 22:04:34,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 494 transitions. [2018-01-28 22:04:34,759 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 494 transitions. Word has length 329 [2018-01-28 22:04:34,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:04:34,760 INFO L432 AbstractCegarLoop]: Abstraction has 450 states and 494 transitions. [2018-01-28 22:04:34,760 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-28 22:04:34,760 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 494 transitions. [2018-01-28 22:04:34,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-01-28 22:04:34,765 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:04:34,765 INFO L330 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:04:34,766 INFO L371 AbstractCegarLoop]: === Iteration 12 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:04:34,766 INFO L82 PathProgramCache]: Analyzing trace with hash -781518138, now seen corresponding path program 1 times [2018-01-28 22:04:34,766 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:04:34,766 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:04:34,767 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:34,767 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:34,767 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:04:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:34,881 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-28 22:04:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 3 proven. 537 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2018-01-28 22:04:35,909 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-28 22:04:35,909 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-28 22:04:35,914 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:04:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:04:36,072 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-28 22:04:36,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-01-28 22:04:36,204 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 8 treesize of output 7 [2018-01-28 22:04:36,204 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,206 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,212 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,213 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-01-28 22:04:36,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-01-28 22:04:36,242 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-01-28 22:04:36,243 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,246 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,252 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,252 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-01-28 22:04:36,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 40 [2018-01-28 22:04:36,294 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 31 treesize of output 30 [2018-01-28 22:04:36,294 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,314 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,316 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 53 [2018-01-28 22:04:36,327 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-01-28 22:04:36,357 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-01-28 22:04:36,378 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-01-28 22:04:36,378 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:44, output treesize:123 [2018-01-28 22:04:36,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2018-01-28 22:04:36,443 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,443 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,444 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,445 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 60 [2018-01-28 22:04:36,446 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,459 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,504 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,505 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2018-01-28 22:04:36,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-01-28 22:04:36,513 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,525 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,572 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 69 [2018-01-28 22:04:36,577 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,578 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 69 treesize of output 84 [2018-01-28 22:04:36,578 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,609 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,610 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,611 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 92 [2018-01-28 22:04:36,625 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:36,685 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:36,750 INFO L267 ElimStorePlain]: Start of recursive call 8: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-01-28 22:04:36,776 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-01-28 22:04:36,813 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-01-28 22:04:36,813 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:159, output treesize:187 [2018-01-28 22:04:36,890 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-01-28 22:04:36,890 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,908 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,909 INFO L700 Elim1Store]: detected not equals via solver [2018-01-28 22:04:36,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 15 treesize of output 8 [2018-01-28 22:04:36,909 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-01-28 22:04:36,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:36,931 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:207, output treesize:65 [2018-01-28 22:04:37,082 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:37,084 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:37,087 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-01-28 22:04:37,087 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:21 [2018-01-28 22:04:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 1286 proven. 31 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2018-01-28 22:04:37,404 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-28 22:04:37,404 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 40 [2018-01-28 22:04:37,404 INFO L409 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-01-28 22:04:37,405 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-01-28 22:04:37,405 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1384, Unknown=11, NotChecked=0, Total=1560 [2018-01-28 22:04:37,405 INFO L87 Difference]: Start difference. First operand 450 states and 494 transitions. Second operand 40 states. [2018-01-28 22:04:42,562 WARN L146 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 96 DAG size of output 84 [2018-01-28 22:04:47,143 WARN L146 SmtUtils]: Spent 4091ms on a formula simplification. DAG size of input: 55 DAG size of output 46 [2018-01-28 22:04:49,367 WARN L146 SmtUtils]: Spent 2114ms on a formula simplification. DAG size of input: 62 DAG size of output 44 [2018-01-28 22:05:02,099 WARN L146 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 69 DAG size of output 65 [2018-01-28 22:05:06,475 WARN L146 SmtUtils]: Spent 140ms on a formula simplification. DAG size of input: 106 DAG size of output 94 [2018-01-28 22:05:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-28 22:05:11,051 INFO L93 Difference]: Finished difference Result 931 states and 1054 transitions. [2018-01-28 22:05:11,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-01-28 22:05:11,051 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 357 [2018-01-28 22:05:11,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-28 22:05:11,053 INFO L225 Difference]: With dead ends: 931 [2018-01-28 22:05:11,053 INFO L226 Difference]: Without dead ends: 497 [2018-01-28 22:05:11,056 INFO L533 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 346 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1303 ImplicationChecksByTransitivity, 19.2s TimeCoverageRelationStatistics Valid=714, Invalid=4229, Unknown=27, NotChecked=0, Total=4970 [2018-01-28 22:05:11,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2018-01-28 22:05:11,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 440. [2018-01-28 22:05:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2018-01-28 22:05:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 482 transitions. [2018-01-28 22:05:11,082 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 482 transitions. Word has length 357 [2018-01-28 22:05:11,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-28 22:05:11,083 INFO L432 AbstractCegarLoop]: Abstraction has 440 states and 482 transitions. [2018-01-28 22:05:11,083 INFO L433 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-01-28 22:05:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 482 transitions. [2018-01-28 22:05:11,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2018-01-28 22:05:11,089 INFO L322 BasicCegarLoop]: Found error trace [2018-01-28 22:05:11,089 INFO L330 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-28 22:05:11,090 INFO L371 AbstractCegarLoop]: === Iteration 13 === [containsHeadErr10RequiresViolation, containsHeadErr28RequiresViolation, containsHeadErr33RequiresViolation, containsHeadErr38RequiresViolation, containsHeadErr18RequiresViolation, containsHeadErr5RequiresViolation, containsHeadErr0RequiresViolation, containsHeadErr7RequiresViolation, containsHeadErr2RequiresViolation, containsHeadErr26RequiresViolation, containsHeadErr17RequiresViolation, containsHeadErr40RequiresViolation, containsHeadErr36RequiresViolation, containsHeadErr27RequiresViolation, containsHeadErr13RequiresViolation, containsHeadErr30RequiresViolation, containsHeadErr20RequiresViolation, containsHeadErr23RequiresViolation, containsHeadErr8RequiresViolation, containsHeadErr1RequiresViolation, containsHeadErr14RequiresViolation, containsHeadErr37RequiresViolation, containsHeadErr19RequiresViolation, containsHeadErr11RequiresViolation, containsHeadErr4RequiresViolation, containsHeadErr29RequiresViolation, containsHeadErr32RequiresViolation, containsHeadErr9RequiresViolation, containsHeadErr16RequiresViolation, containsHeadErr39RequiresViolation, containsHeadErr24RequiresViolation, containsHeadErr34RequiresViolation, containsHeadErr3RequiresViolation, containsHeadErr12RequiresViolation, containsHeadErr31RequiresViolation, containsHeadErr35RequiresViolation, containsHeadErr21RequiresViolation, containsHeadErr41RequiresViolation, containsHeadErr22RequiresViolation, containsHeadErr25RequiresViolation, containsHeadErr6RequiresViolation, containsHeadErr15RequiresViolation, containsBodyErr15RequiresViolation, containsBodyErr30RequiresViolation, containsBodyErr1RequiresViolation, containsBodyErr20RequiresViolation, containsBodyErr9RequiresViolation, containsBodyErr10RequiresViolation, containsBodyErr25RequiresViolation, containsBodyErr12RequiresViolation, containsBodyErr35RequiresViolation, containsBodyErr22RequiresViolation, containsBodyErr40RequiresViolation, containsBodyErr3RequiresViolation, containsBodyErr2RequiresViolation, containsBodyErr28RequiresViolation, containsBodyErr6RequiresViolation, containsBodyErr38RequiresViolation, containsBodyErr18RequiresViolation, containsBodyErr21RequiresViolation, containsBodyErr41RequiresViolation, containsBodyErr31RequiresViolation, containsBodyErr29RequiresViolation, containsBodyErr11RequiresViolation, containsBodyErr39RequiresViolation, containsBodyErr24RequiresViolation, containsBodyErr16RequiresViolation, containsBodyErr34RequiresViolation, containsBodyErr0RequiresViolation, containsBodyErr14RequiresViolation, containsBodyErr19RequiresViolation, containsBodyErr5RequiresViolation, containsBodyErr37RequiresViolation, containsBodyErr13RequiresViolation, containsBodyErr32RequiresViolation, containsBodyErr27RequiresViolation, containsBodyErr7RequiresViolation, containsBodyErr36RequiresViolation, containsBodyErr17RequiresViolation, containsBodyErr8RequiresViolation, containsBodyErr4RequiresViolation, containsBodyErr33RequiresViolation, containsBodyErr26RequiresViolation, containsBodyErr23RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr28RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr0RequiresViolation, mainErr21RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr30EnsuresViolation, mainErr2RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr17RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr4RequiresViolation, mainErr14RequiresViolation, appendErr0RequiresViolation, appendErr8RequiresViolation, appendErr14RequiresViolation, appendErr5RequiresViolation, appendErr17RequiresViolation, appendErr19RequiresViolation, appendErr22RequiresViolation, appendErr12RequiresViolation, appendErr3RequiresViolation, appendErr16RequiresViolation, appendErr2RequiresViolation, appendErr6RequiresViolation, appendErr9RequiresViolation, appendErr13RequiresViolation, appendErr23RequiresViolation, appendErr4RequiresViolation, appendErr10RequiresViolation, appendErr20RequiresViolation, appendErr11RequiresViolation, appendErr25RequiresViolation, appendErr7RequiresViolation, appendErr24RequiresViolation, appendErr15RequiresViolation, appendErr1RequiresViolation, appendErr21RequiresViolation, appendErr18RequiresViolation]=== [2018-01-28 22:05:11,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1764641412, now seen corresponding path program 1 times [2018-01-28 22:05:11,090 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-28 22:05:11,090 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-28 22:05:11,091 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:05:11,091 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-28 22:05:11,091 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-28 22:05:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-28 22:05:17,665 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown