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/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf -i ../../../trunk/examples/svcomp/memsafety-ext2/split_list_test05_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 13:06:22,136 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 13:06:22,137 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 13:06:22,149 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 13:06:22,149 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 13:06:22,150 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 13:06:22,150 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 13:06:22,152 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 13:06:22,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 13:06:22,154 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 13:06:22,155 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 13:06:22,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 13:06:22,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 13:06:22,157 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 13:06:22,158 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 13:06:22,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 13:06:22,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 13:06:22,162 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 13:06:22,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 13:06:22,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 13:06:22,166 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 13:06:22,166 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 13:06:22,166 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 13:06:22,167 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 13:06:22,168 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 13:06:22,168 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 13:06:22,169 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 13:06:22,169 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 13:06:22,169 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 13:06:22,169 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 13:06:22,170 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 13:06:22,170 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel.epf [2018-02-04 13:06:22,179 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 13:06:22,179 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 13:06:22,180 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 13:06:22,180 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 13:06:22,180 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 13:06:22,180 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 13:06:22,181 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 13:06:22,181 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 13:06:22,182 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 13:06:22,182 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 13:06:22,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 13:06:22,182 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 13:06:22,182 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 13:06:22,182 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 13:06:22,182 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-02-04 13:06:22,210 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 13:06:22,219 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 13:06:22,222 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 13:06:22,223 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 13:06:22,223 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 13:06:22,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety-ext2/split_list_test05_false-valid-deref.i [2018-02-04 13:06:22,354 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 13:06:22,355 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 13:06:22,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 13:06:22,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 13:06:22,360 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 13:06:22,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3643a13b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22, skipping insertion in model container [2018-02-04 13:06:22,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,373 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 13:06:22,401 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 13:06:22,499 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 13:06:22,521 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 13:06:22,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22 WrapperNode [2018-02-04 13:06:22,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 13:06:22,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 13:06:22,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 13:06:22,532 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 13:06:22,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (1/1) ... [2018-02-04 13:06:22,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 13:06:22,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 13:06:22,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 13:06:22,568 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 13:06:22,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (1/1) ... No working directory specified, using /home/ultimate/work/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 [2018-02-04 13:06:22,605 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 13:06:22,606 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 13:06:22,606 INFO L136 BoogieDeclarations]: Found implementation of procedure containsHead [2018-02-04 13:06:22,606 INFO L136 BoogieDeclarations]: Found implementation of procedure containsBody [2018-02-04 13:06:22,606 INFO L136 BoogieDeclarations]: Found implementation of procedure append [2018-02-04 13:06:22,606 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 13:06:22,606 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 13:06:22,606 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 13:06:22,606 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 13:06:22,606 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 13:06:22,606 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 13:06:22,606 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure containsHead [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure containsBody [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure append [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 13:06:22,607 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 13:06:23,175 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 13:06:23,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 01:06:23 BoogieIcfgContainer [2018-02-04 13:06:23,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 13:06:23,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 13:06:23,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 13:06:23,177 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 13:06:23,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 01:06:22" (1/3) ... [2018-02-04 13:06:23,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb6b9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 01:06:23, skipping insertion in model container [2018-02-04 13:06:23,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 01:06:22" (2/3) ... [2018-02-04 13:06:23,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb6b9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 01:06:23, skipping insertion in model container [2018-02-04 13:06:23,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 01:06:23" (3/3) ... [2018-02-04 13:06:23,179 INFO L107 eAbstractionObserver]: Analyzing ICFG split_list_test05_false-valid-deref.i [2018-02-04 13:06:23,184 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 13:06:23,188 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 141 error locations. [2018-02-04 13:06:23,217 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 13:06:23,217 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 13:06:23,217 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 13:06:23,217 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 13:06:23,217 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 13:06:23,217 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 13:06:23,217 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 13:06:23,217 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 13:06:23,218 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 13:06:23,232 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states. [2018-02-04 13:06:23,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 13:06:23,239 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:23,240 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:23,240 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]=== [2018-02-04 13:06:23,243 INFO L82 PathProgramCache]: Analyzing trace with hash 479486545, now seen corresponding path program 1 times [2018-02-04 13:06:23,244 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:23,245 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:23,274 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:23,274 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:23,274 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:23,304 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:23,352 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:06:23,353 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 13:06:23,354 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 13:06:23,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 13:06:23,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 13:06:23,444 INFO L87 Difference]: Start difference. First operand 332 states. Second operand 4 states. [2018-02-04 13:06:23,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:23,825 INFO L93 Difference]: Finished difference Result 387 states and 432 transitions. [2018-02-04 13:06:23,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 13:06:23,826 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 13:06:23,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:23,837 INFO L225 Difference]: With dead ends: 387 [2018-02-04 13:06:23,837 INFO L226 Difference]: Without dead ends: 384 [2018-02-04 13:06:23,839 INFO L554 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 [2018-02-04 13:06:23,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2018-02-04 13:06:23,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 344. [2018-02-04 13:06:23,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2018-02-04 13:06:23,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 388 transitions. [2018-02-04 13:06:23,885 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 388 transitions. Word has length 8 [2018-02-04 13:06:23,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:23,886 INFO L432 AbstractCegarLoop]: Abstraction has 344 states and 388 transitions. [2018-02-04 13:06:23,886 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 13:06:23,886 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 388 transitions. [2018-02-04 13:06:23,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-04 13:06:23,886 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:23,886 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:23,886 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]=== [2018-02-04 13:06:23,886 INFO L82 PathProgramCache]: Analyzing trace with hash 479486546, now seen corresponding path program 1 times [2018-02-04 13:06:23,886 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:23,886 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:23,887 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:23,887 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:23,887 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:23,899 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:23,937 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:06:23,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 13:06:23,939 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 13:06:23,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 13:06:23,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 13:06:23,939 INFO L87 Difference]: Start difference. First operand 344 states and 388 transitions. Second operand 4 states. [2018-02-04 13:06:24,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:24,142 INFO L93 Difference]: Finished difference Result 346 states and 392 transitions. [2018-02-04 13:06:24,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 13:06:24,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-02-04 13:06:24,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:24,143 INFO L225 Difference]: With dead ends: 346 [2018-02-04 13:06:24,144 INFO L226 Difference]: Without dead ends: 346 [2018-02-04 13:06:24,144 INFO L554 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 [2018-02-04 13:06:24,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2018-02-04 13:06:24,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 342. [2018-02-04 13:06:24,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-02-04 13:06:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 386 transitions. [2018-02-04 13:06:24,159 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 386 transitions. Word has length 8 [2018-02-04 13:06:24,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:24,159 INFO L432 AbstractCegarLoop]: Abstraction has 342 states and 386 transitions. [2018-02-04 13:06:24,159 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 13:06:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 386 transitions. [2018-02-04 13:06:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 13:06:24,159 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:24,160 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:24,160 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]=== [2018-02-04 13:06:24,160 INFO L82 PathProgramCache]: Analyzing trace with hash -2063719306, now seen corresponding path program 1 times [2018-02-04 13:06:24,160 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:24,160 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:24,161 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:24,161 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:24,161 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:24,177 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:24,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:24,202 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:06:24,202 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 13:06:24,202 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 13:06:24,202 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 13:06:24,203 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 13:06:24,203 INFO L87 Difference]: Start difference. First operand 342 states and 386 transitions. Second operand 4 states. [2018-02-04 13:06:24,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:24,369 INFO L93 Difference]: Finished difference Result 337 states and 381 transitions. [2018-02-04 13:06:24,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 13:06:24,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-02-04 13:06:24,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:24,370 INFO L225 Difference]: With dead ends: 337 [2018-02-04 13:06:24,370 INFO L226 Difference]: Without dead ends: 337 [2018-02-04 13:06:24,370 INFO L554 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 [2018-02-04 13:06:24,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2018-02-04 13:06:24,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2018-02-04 13:06:24,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-02-04 13:06:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 381 transitions. [2018-02-04 13:06:24,377 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 381 transitions. Word has length 18 [2018-02-04 13:06:24,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:24,378 INFO L432 AbstractCegarLoop]: Abstraction has 337 states and 381 transitions. [2018-02-04 13:06:24,378 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 13:06:24,378 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 381 transitions. [2018-02-04 13:06:24,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-02-04 13:06:24,378 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:24,378 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:24,379 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]=== [2018-02-04 13:06:24,379 INFO L82 PathProgramCache]: Analyzing trace with hash -2063719305, now seen corresponding path program 1 times [2018-02-04 13:06:24,379 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:24,379 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:24,380 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:24,380 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:24,380 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:24,395 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:24,436 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:06:24,436 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 13:06:24,437 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 13:06:24,437 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 13:06:24,437 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 13:06:24,437 INFO L87 Difference]: Start difference. First operand 337 states and 381 transitions. Second operand 4 states. [2018-02-04 13:06:24,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:24,586 INFO L93 Difference]: Finished difference Result 332 states and 376 transitions. [2018-02-04 13:06:24,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 13:06:24,586 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-02-04 13:06:24,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:24,588 INFO L225 Difference]: With dead ends: 332 [2018-02-04 13:06:24,588 INFO L226 Difference]: Without dead ends: 332 [2018-02-04 13:06:24,588 INFO L554 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 [2018-02-04 13:06:24,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-02-04 13:06:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2018-02-04 13:06:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2018-02-04 13:06:24,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 376 transitions. [2018-02-04 13:06:24,596 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 376 transitions. Word has length 18 [2018-02-04 13:06:24,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:24,597 INFO L432 AbstractCegarLoop]: Abstraction has 332 states and 376 transitions. [2018-02-04 13:06:24,597 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 13:06:24,597 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 376 transitions. [2018-02-04 13:06:24,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 13:06:24,597 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:24,597 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:24,598 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]=== [2018-02-04 13:06:24,598 INFO L82 PathProgramCache]: Analyzing trace with hash 449211379, now seen corresponding path program 1 times [2018-02-04 13:06:24,598 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:24,598 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:24,599 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:24,599 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:24,599 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:24,613 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:24,662 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:06:24,662 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 13:06:24,662 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 13:06:24,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 13:06:24,663 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-02-04 13:06:24,663 INFO L87 Difference]: Start difference. First operand 332 states and 376 transitions. Second operand 7 states. [2018-02-04 13:06:25,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:25,078 INFO L93 Difference]: Finished difference Result 360 states and 403 transitions. [2018-02-04 13:06:25,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 13:06:25,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-02-04 13:06:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:25,080 INFO L225 Difference]: With dead ends: 360 [2018-02-04 13:06:25,080 INFO L226 Difference]: Without dead ends: 360 [2018-02-04 13:06:25,081 INFO L554 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 [2018-02-04 13:06:25,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2018-02-04 13:06:25,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 324. [2018-02-04 13:06:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-02-04 13:06:25,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 368 transitions. [2018-02-04 13:06:25,098 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 368 transitions. Word has length 19 [2018-02-04 13:06:25,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:25,098 INFO L432 AbstractCegarLoop]: Abstraction has 324 states and 368 transitions. [2018-02-04 13:06:25,098 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 13:06:25,099 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 368 transitions. [2018-02-04 13:06:25,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 13:06:25,099 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:25,099 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:25,099 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]=== [2018-02-04 13:06:25,100 INFO L82 PathProgramCache]: Analyzing trace with hash 449211380, now seen corresponding path program 1 times [2018-02-04 13:06:25,100 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:25,100 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:25,101 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:25,101 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:25,101 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:25,112 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:25,185 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:06:25,185 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 13:06:25,185 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 13:06:25,185 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 13:06:25,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-02-04 13:06:25,186 INFO L87 Difference]: Start difference. First operand 324 states and 368 transitions. Second operand 8 states. [2018-02-04 13:06:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:25,741 INFO L93 Difference]: Finished difference Result 354 states and 399 transitions. [2018-02-04 13:06:25,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 13:06:25,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-02-04 13:06:25,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:25,743 INFO L225 Difference]: With dead ends: 354 [2018-02-04 13:06:25,743 INFO L226 Difference]: Without dead ends: 354 [2018-02-04 13:06:25,744 INFO L554 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 [2018-02-04 13:06:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2018-02-04 13:06:25,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 315. [2018-02-04 13:06:25,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2018-02-04 13:06:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 358 transitions. [2018-02-04 13:06:25,749 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 358 transitions. Word has length 19 [2018-02-04 13:06:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:25,750 INFO L432 AbstractCegarLoop]: Abstraction has 315 states and 358 transitions. [2018-02-04 13:06:25,750 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 13:06:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 358 transitions. [2018-02-04 13:06:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 13:06:25,751 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:25,751 INFO L351 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] [2018-02-04 13:06:25,751 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]=== [2018-02-04 13:06:25,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1619802097, now seen corresponding path program 1 times [2018-02-04 13:06:25,751 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:25,751 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:25,752 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:25,752 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:25,752 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:25,768 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:25,887 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:06:25,887 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 13:06:25,887 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 13:06:25,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 13:06:25,887 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-02-04 13:06:25,888 INFO L87 Difference]: Start difference. First operand 315 states and 358 transitions. Second operand 10 states. [2018-02-04 13:06:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:26,279 INFO L93 Difference]: Finished difference Result 338 states and 384 transitions. [2018-02-04 13:06:26,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 13:06:26,279 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2018-02-04 13:06:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:26,280 INFO L225 Difference]: With dead ends: 338 [2018-02-04 13:06:26,280 INFO L226 Difference]: Without dead ends: 338 [2018-02-04 13:06:26,281 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2018-02-04 13:06:26,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-02-04 13:06:26,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 326. [2018-02-04 13:06:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2018-02-04 13:06:26,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 371 transitions. [2018-02-04 13:06:26,292 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 371 transitions. Word has length 28 [2018-02-04 13:06:26,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:26,292 INFO L432 AbstractCegarLoop]: Abstraction has 326 states and 371 transitions. [2018-02-04 13:06:26,292 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 13:06:26,293 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 371 transitions. [2018-02-04 13:06:26,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-02-04 13:06:26,293 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:26,293 INFO L351 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] [2018-02-04 13:06:26,293 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]=== [2018-02-04 13:06:26,294 INFO L82 PathProgramCache]: Analyzing trace with hash -82034476, now seen corresponding path program 1 times [2018-02-04 13:06:26,294 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:26,294 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:26,299 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:26,299 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:26,299 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:26,315 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:26,521 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 13:06:26,521 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-02-04 13:06:26,522 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 13:06:26,522 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 13:06:26,522 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-02-04 13:06:26,522 INFO L87 Difference]: Start difference. First operand 326 states and 371 transitions. Second operand 13 states. [2018-02-04 13:06:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:26,986 INFO L93 Difference]: Finished difference Result 366 states and 411 transitions. [2018-02-04 13:06:26,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 13:06:26,986 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2018-02-04 13:06:26,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:26,987 INFO L225 Difference]: With dead ends: 366 [2018-02-04 13:06:26,987 INFO L226 Difference]: Without dead ends: 366 [2018-02-04 13:06:26,988 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2018-02-04 13:06:26,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2018-02-04 13:06:26,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 329. [2018-02-04 13:06:26,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2018-02-04 13:06:26,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 374 transitions. [2018-02-04 13:06:26,992 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 374 transitions. Word has length 30 [2018-02-04 13:06:26,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:26,992 INFO L432 AbstractCegarLoop]: Abstraction has 329 states and 374 transitions. [2018-02-04 13:06:26,993 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 13:06:26,993 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 374 transitions. [2018-02-04 13:06:26,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 13:06:26,994 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:26,994 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:26,994 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]=== [2018-02-04 13:06:26,994 INFO L82 PathProgramCache]: Analyzing trace with hash -156377040, now seen corresponding path program 1 times [2018-02-04 13:06:26,994 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:26,994 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:26,995 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:26,995 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:26,995 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:27,019 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:27,471 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:27,472 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 13:06:27,472 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-02-04 13:06:27,477 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:27,530 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 13:06:27,673 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 [2018-02-04 13:06:27,675 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 [2018-02-04 13:06:27,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:27,676 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:27,680 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:27,680 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:25 [2018-02-04 13:06:27,714 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 [2018-02-04 13:06:27,719 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 [2018-02-04 13:06:27,719 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:27,740 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 [2018-02-04 13:06:27,741 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 13:06:27,750 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 13:06:27,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-02-04 13:06:27,760 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:38, output treesize:70 [2018-02-04 13:06:27,820 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 68 treesize of output 65 [2018-02-04 13:06:27,824 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:27,826 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 61 treesize of output 76 [2018-02-04 13:06:27,826 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:27,845 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:27,852 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 39 treesize of output 54 [2018-02-04 13:06:27,853 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 13:06:27,869 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 13:06:27,890 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 33 treesize of output 28 [2018-02-04 13:06:27,892 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:27,893 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 [2018-02-04 13:06:27,893 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:27,897 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:27,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-02-04 13:06:27,927 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 3 variables, input treesize:102, output treesize:115 [2018-02-04 13:06:28,021 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:28,022 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:28,023 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 63 treesize of output 57 [2018-02-04 13:06:28,023 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:28,058 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:130, output treesize:57 [2018-02-04 13:06:28,152 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:28,153 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:28,154 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:28,154 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 [2018-02-04 13:06:28,154 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,163 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:28,163 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:68, output treesize:76 [2018-02-04 13:06:28,252 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 [2018-02-04 13:06:28,257 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 [2018-02-04 13:06:28,257 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,274 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. [2018-02-04 13:06:28,275 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:91, output treesize:76 [2018-02-04 13:06:28,321 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 [2018-02-04 13:06:28,324 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 [2018-02-04 13:06:28,324 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,331 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,339 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:28,339 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:89, output treesize:76 [2018-02-04 13:06:28,379 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 [2018-02-04 13:06:28,382 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 [2018-02-04 13:06:28,382 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,393 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:28,404 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:89, output treesize:85 [2018-02-04 13:06:28,453 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 80 treesize of output 58 [2018-02-04 13:06:28,457 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 [2018-02-04 13:06:28,457 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,467 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:28,468 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 [2018-02-04 13:06:28,468 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,473 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 33 treesize of output 14 [2018-02-04 13:06:28,473 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,476 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:28,480 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:28,480 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:94, output treesize:28 [2018-02-04 13:06:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:28,549 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 13:06:28,549 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 37 [2018-02-04 13:06:28,550 INFO L409 AbstractCegarLoop]: Interpolant automaton has 38 states [2018-02-04 13:06:28,550 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2018-02-04 13:06:28,550 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1286, Unknown=0, NotChecked=0, Total=1406 [2018-02-04 13:06:28,550 INFO L87 Difference]: Start difference. First operand 329 states and 374 transitions. Second operand 38 states. [2018-02-04 13:06:29,148 WARN L146 SmtUtils]: Spent 120ms on a formula simplification. DAG size of input: 78 DAG size of output 69 [2018-02-04 13:06:32,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:32,479 INFO L93 Difference]: Finished difference Result 478 states and 578 transitions. [2018-02-04 13:06:32,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-04 13:06:32,514 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 47 [2018-02-04 13:06:32,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:32,518 INFO L225 Difference]: With dead ends: 478 [2018-02-04 13:06:32,518 INFO L226 Difference]: Without dead ends: 478 [2018-02-04 13:06:32,518 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=544, Invalid=3362, Unknown=0, NotChecked=0, Total=3906 [2018-02-04 13:06:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2018-02-04 13:06:32,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 334. [2018-02-04 13:06:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-02-04 13:06:32,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 378 transitions. [2018-02-04 13:06:32,530 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 378 transitions. Word has length 47 [2018-02-04 13:06:32,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:32,531 INFO L432 AbstractCegarLoop]: Abstraction has 334 states and 378 transitions. [2018-02-04 13:06:32,531 INFO L433 AbstractCegarLoop]: Interpolant automaton has 38 states. [2018-02-04 13:06:32,531 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 378 transitions. [2018-02-04 13:06:32,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-02-04 13:06:32,532 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:32,532 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:32,532 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]=== [2018-02-04 13:06:32,532 INFO L82 PathProgramCache]: Analyzing trace with hash -156377039, now seen corresponding path program 1 times [2018-02-04 13:06:32,533 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:32,533 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:32,533 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:32,534 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:32,534 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:32,559 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:33,093 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 13:06:33,093 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-02-04 13:06:33,101 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:33,140 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 13:06:33,321 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 [2018-02-04 13:06:33,326 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 [2018-02-04 13:06:33,327 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,329 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,344 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 [2018-02-04 13:06:33,348 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 [2018-02-04 13:06:33,348 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,350 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,360 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:33,361 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:48, output treesize:40 [2018-02-04 13:06:33,409 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 [2018-02-04 13:06:33,413 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 [2018-02-04 13:06:33,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,435 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 [2018-02-04 13:06:33,435 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 13:06:33,447 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 13:06:33,481 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 [2018-02-04 13:06:33,483 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 [2018-02-04 13:06:33,484 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,505 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 [2018-02-04 13:06:33,506 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-02-04 13:06:33,524 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 13:06:33,550 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2018-02-04 13:06:33,550 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:66, output treesize:212 [2018-02-04 13:06:33,655 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 75 treesize of output 70 [2018-02-04 13:06:33,657 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:33,658 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 [2018-02-04 13:06:33,658 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,671 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,712 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 66 treesize of output 61 [2018-02-04 13:06:33,714 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:33,715 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 [2018-02-04 13:06:33,715 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,723 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,766 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 168 treesize of output 157 [2018-02-04 13:06:33,770 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:33,770 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 161 treesize of output 188 [2018-02-04 13:06:33,771 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,827 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:33,829 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:33,837 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 161 [2018-02-04 13:06:33,837 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-02-04 13:06:33,892 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 13:06:33,948 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 107 treesize of output 90 [2018-02-04 13:06:33,950 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:33,951 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:33,951 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 13:06:33,952 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 0 case distinctions, treesize of input 74 treesize of output 49 [2018-02-04 13:06:33,953 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,962 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:33,974 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 158 treesize of output 158 [2018-02-04 13:06:33,978 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:33,978 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 151 treesize of output 178 [2018-02-04 13:06:33,978 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,039 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,039 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,047 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 133 treesize of output 159 [2018-02-04 13:06:34,048 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2018-02-04 13:06:34,086 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 13:06:34,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-02-04 13:06:34,122 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:244, output treesize:267 [2018-02-04 13:06:34,214 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,215 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,215 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 156 treesize of output 150 [2018-02-04 13:06:34,215 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:34,260 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:291, output treesize:150 [2018-02-04 13:06:34,396 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,396 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,397 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,397 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 [2018-02-04 13:06:34,398 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2018-02-04 13:06:34,415 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:34,429 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:161, output treesize:153 [2018-02-04 13:06:34,527 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 [2018-02-04 13:06:34,529 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 [2018-02-04 13:06:34,529 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,538 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,561 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 130 treesize of output 151 [2018-02-04 13:06:34,563 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 [2018-02-04 13:06:34,563 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,587 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:34,601 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:183, output treesize:153 [2018-02-04 13:06:34,619 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 [2018-02-04 13:06:34,622 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 [2018-02-04 13:06:34,622 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,634 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,662 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 [2018-02-04 13:06:34,664 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 [2018-02-04 13:06:34,664 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,674 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,691 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:34,691 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:179, output treesize:153 [2018-02-04 13:06:34,699 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 [2018-02-04 13:06:34,701 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 [2018-02-04 13:06:34,702 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,712 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,735 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 [2018-02-04 13:06:34,737 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 [2018-02-04 13:06:34,737 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,746 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:34,763 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:179, output treesize:171 [2018-02-04 13:06:34,824 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 142 treesize of output 123 [2018-02-04 13:06:34,827 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 13:06:34,827 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 79 treesize of output 59 [2018-02-04 13:06:34,827 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,838 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 [2018-02-04 13:06:34,838 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,846 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,847 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 [2018-02-04 13:06:34,847 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,853 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,873 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 [2018-02-04 13:06:34,881 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 [2018-02-04 13:06:34,882 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,893 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:34,894 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 [2018-02-04 13:06:34,894 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,919 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 13:06:34,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2018-02-04 13:06:34,919 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,922 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:34,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:34,932 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 7 variables, input treesize:189, output treesize:22 [2018-02-04 13:06:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 13:06:34,998 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 13:06:34,999 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2018-02-04 13:06:34,999 INFO L409 AbstractCegarLoop]: Interpolant automaton has 39 states [2018-02-04 13:06:34,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2018-02-04 13:06:34,999 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1380, Unknown=1, NotChecked=0, Total=1482 [2018-02-04 13:06:35,000 INFO L87 Difference]: Start difference. First operand 334 states and 378 transitions. Second operand 39 states. [2018-02-04 13:06:38,037 WARN L146 SmtUtils]: Spent 182ms on a formula simplification. DAG size of input: 143 DAG size of output 133 [2018-02-04 13:06:38,566 WARN L146 SmtUtils]: Spent 103ms on a formula simplification. DAG size of input: 136 DAG size of output 82 [2018-02-04 13:06:39,295 WARN L146 SmtUtils]: Spent 111ms on a formula simplification. DAG size of input: 148 DAG size of output 94 [2018-02-04 13:06:39,666 WARN L146 SmtUtils]: Spent 137ms on a formula simplification. DAG size of input: 161 DAG size of output 104 [2018-02-04 13:06:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:44,449 INFO L93 Difference]: Finished difference Result 476 states and 576 transitions. [2018-02-04 13:06:44,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-02-04 13:06:44,449 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 47 [2018-02-04 13:06:44,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:44,451 INFO L225 Difference]: With dead ends: 476 [2018-02-04 13:06:44,451 INFO L226 Difference]: Without dead ends: 476 [2018-02-04 13:06:44,452 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=590, Invalid=3965, Unknown=1, NotChecked=0, Total=4556 [2018-02-04 13:06:44,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2018-02-04 13:06:44,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 333. [2018-02-04 13:06:44,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-02-04 13:06:44,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 377 transitions. [2018-02-04 13:06:44,461 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 377 transitions. Word has length 47 [2018-02-04 13:06:44,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:44,461 INFO L432 AbstractCegarLoop]: Abstraction has 333 states and 377 transitions. [2018-02-04 13:06:44,461 INFO L433 AbstractCegarLoop]: Interpolant automaton has 39 states. [2018-02-04 13:06:44,461 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 377 transitions. [2018-02-04 13:06:44,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-02-04 13:06:44,465 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:44,465 INFO L351 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:06:44,465 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]=== [2018-02-04 13:06:44,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1032388757, now seen corresponding path program 1 times [2018-02-04 13:06:44,466 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:44,466 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:44,466 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:44,466 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:44,467 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:44,489 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 7 proven. 84 refuted. 0 times theorem prover too weak. 1183 trivial. 0 not checked. [2018-02-04 13:06:44,591 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 13:06:44,591 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-02-04 13:06:44,598 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:44,753 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 13:06:44,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 1003 trivial. 0 not checked. [2018-02-04 13:06:44,813 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 13:06:44,814 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2018-02-04 13:06:44,814 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 13:06:44,814 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 13:06:44,814 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 13:06:44,815 INFO L87 Difference]: Start difference. First operand 333 states and 377 transitions. Second operand 3 states. [2018-02-04 13:06:44,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:06:44,820 INFO L93 Difference]: Finished difference Result 334 states and 378 transitions. [2018-02-04 13:06:44,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 13:06:44,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2018-02-04 13:06:44,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:06:44,822 INFO L225 Difference]: With dead ends: 334 [2018-02-04 13:06:44,822 INFO L226 Difference]: Without dead ends: 334 [2018-02-04 13:06:44,823 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 13:06:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2018-02-04 13:06:44,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2018-02-04 13:06:44,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-02-04 13:06:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 378 transitions. [2018-02-04 13:06:44,829 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 378 transitions. Word has length 240 [2018-02-04 13:06:44,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:06:44,829 INFO L432 AbstractCegarLoop]: Abstraction has 334 states and 378 transitions. [2018-02-04 13:06:44,829 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 13:06:44,829 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 378 transitions. [2018-02-04 13:06:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-02-04 13:06:44,833 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:06:44,833 INFO L351 BasicCegarLoop]: trace histogram [14, 14, 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] [2018-02-04 13:06:44,834 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]=== [2018-02-04 13:06:44,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1145563202, now seen corresponding path program 1 times [2018-02-04 13:06:44,834 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:06:44,834 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:06:44,835 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:44,835 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:44,835 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:06:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:44,935 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 13:06:45,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 2 proven. 398 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2018-02-04 13:06:45,775 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 13:06:45,775 INFO L213 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/ultimate/work/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 [2018-02-04 13:06:45,782 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:06:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:06:45,907 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 13:06:45,997 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 [2018-02-04 13:06:45,999 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 [2018-02-04 13:06:45,999 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,000 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,006 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,006 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-02-04 13:06:46,023 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 [2018-02-04 13:06:46,025 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,025 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 [2018-02-04 13:06:46,025 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,028 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,031 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,031 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:35, output treesize:31 [2018-02-04 13:06:46,058 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 [2018-02-04 13:06:46,060 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 [2018-02-04 13:06:46,060 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,075 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,076 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,084 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 [2018-02-04 13:06:46,085 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 4 xjuncts. [2018-02-04 13:06:46,107 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-02-04 13:06:46,122 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-02-04 13:06:46,123 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:44, output treesize:123 [2018-02-04 13:06:46,177 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 [2018-02-04 13:06:46,179 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,179 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 [2018-02-04 13:06:46,180 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,200 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,201 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,202 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,206 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 [2018-02-04 13:06:46,208 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:46,239 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:46,257 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 13:06:46,275 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 13:06:46,316 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,317 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 [2018-02-04 13:06:46,318 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 [2018-02-04 13:06:46,318 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,323 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,358 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 [2018-02-04 13:06:46,359 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,360 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,360 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,361 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,361 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 [2018-02-04 13:06:46,361 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,368 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,394 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. [2018-02-04 13:06:46,395 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 4 variables, input treesize:159, output treesize:187 [2018-02-04 13:06:46,449 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-02-04 13:06:46,449 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,472 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,473 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 13:06:46,473 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 [2018-02-04 13:06:46,473 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,478 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. [2018-02-04 13:06:46,479 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:207, output treesize:65 [2018-02-04 13:06:46,824 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:46,825 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 13:06:46,828 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. [2018-02-04 13:06:46,828 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:21 [2018-02-04 13:06:46,973 INFO L267 ElimStorePlain]: Start of recursive call 1: End of recursive call: and 1 xjuncts. [2018-02-04 13:06:46,973 INFO L202 ElimStorePlain]: Needed 1 recursive calls to eliminate 7 variables, input treesize:85, output treesize:1 [2018-02-04 13:06:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 992 proven. 25 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2018-02-04 13:06:47,033 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 13:06:47,033 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 40 [2018-02-04 13:06:47,033 INFO L409 AbstractCegarLoop]: Interpolant automaton has 40 states [2018-02-04 13:06:47,033 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2018-02-04 13:06:47,034 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1384, Unknown=11, NotChecked=0, Total=1560 [2018-02-04 13:06:47,034 INFO L87 Difference]: Start difference. First operand 334 states and 378 transitions. Second operand 40 states. [2018-02-04 13:06:51,357 WARN L146 SmtUtils]: Spent 4059ms on a formula simplification. DAG size of input: 44 DAG size of output 43 [2018-02-04 13:06:53,417 WARN L146 SmtUtils]: Spent 2041ms on a formula simplification. DAG size of input: 42 DAG size of output 41 [2018-02-04 13:06:58,274 WARN L146 SmtUtils]: Spent 2067ms on a formula simplification. DAG size of input: 54 DAG size of output 45 [2018-02-04 13:07:02,436 WARN L146 SmtUtils]: Spent 2051ms on a formula simplification. DAG size of input: 61 DAG size of output 43 [2018-02-04 13:07:17,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 13:07:17,169 INFO L93 Difference]: Finished difference Result 388 states and 434 transitions. [2018-02-04 13:07:17,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-02-04 13:07:17,170 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 266 [2018-02-04 13:07:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 13:07:17,171 INFO L225 Difference]: With dead ends: 388 [2018-02-04 13:07:17,171 INFO L226 Difference]: Without dead ends: 369 [2018-02-04 13:07:17,171 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 254 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=693, Invalid=4110, Unknown=27, NotChecked=0, Total=4830 [2018-02-04 13:07:17,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-02-04 13:07:17,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 327. [2018-02-04 13:07:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2018-02-04 13:07:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 369 transitions. [2018-02-04 13:07:17,177 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 369 transitions. Word has length 266 [2018-02-04 13:07:17,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 13:07:17,177 INFO L432 AbstractCegarLoop]: Abstraction has 327 states and 369 transitions. [2018-02-04 13:07:17,177 INFO L433 AbstractCegarLoop]: Interpolant automaton has 40 states. [2018-02-04 13:07:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 369 transitions. [2018-02-04 13:07:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-02-04 13:07:17,179 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 13:07:17,179 INFO L351 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 13:07:17,180 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]=== [2018-02-04 13:07:17,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1863313214, now seen corresponding path program 1 times [2018-02-04 13:07:17,180 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-02-04 13:07:17,180 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-02-04 13:07:17,180 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:07:17,180 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 13:07:17,181 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 13:07:20,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 13:07:20,531 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs.