java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-06 20:02:55,120 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-06 20:02:55,123 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-06 20:02:55,141 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-06 20:02:55,142 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-06 20:02:55,144 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-06 20:02:55,145 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-06 20:02:55,147 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-06 20:02:55,149 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-06 20:02:55,151 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-06 20:02:55,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-06 20:02:55,153 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-06 20:02:55,154 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-06 20:02:55,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-06 20:02:55,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-06 20:02:55,164 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-06 20:02:55,165 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-06 20:02:55,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-06 20:02:55,173 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-06 20:02:55,174 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-06 20:02:55,175 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-06 20:02:55,178 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-06 20:02:55,182 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-06 20:02:55,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-06 20:02:55,182 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-06 20:02:55,184 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-06 20:02:55,185 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-06 20:02:55,186 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-06 20:02:55,188 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-06 20:02:55,190 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-06 20:02:55,191 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-06 20:02:55,191 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-06 20:02:55,192 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-06 20:02:55,192 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-06 20:02:55,193 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-06 20:02:55,194 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-06 20:02:55,195 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-11-06 20:02:55,221 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-06 20:02:55,222 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-06 20:02:55,222 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-06 20:02:55,223 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-06 20:02:55,223 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-06 20:02:55,223 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-06 20:02:55,224 INFO L133 SettingsManager]: * Use SBE=true [2018-11-06 20:02:55,224 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-06 20:02:55,224 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-06 20:02:55,224 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-06 20:02:55,224 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-06 20:02:55,225 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-06 20:02:55,226 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-06 20:02:55,226 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-06 20:02:55,226 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-06 20:02:55,226 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-06 20:02:55,226 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-06 20:02:55,227 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-06 20:02:55,227 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-06 20:02:55,227 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-06 20:02:55,227 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-06 20:02:55,227 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-06 20:02:55,229 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-06 20:02:55,229 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-06 20:02:55,229 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-06 20:02:55,229 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-06 20:02:55,229 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-06 20:02:55,230 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-06 20:02:55,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-06 20:02:55,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-06 20:02:55,299 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-06 20:02:55,300 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-06 20:02:55,301 INFO L276 PluginConnector]: CDTParser initialized [2018-11-06 20:02:55,301 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label10_true-unreach-call.c [2018-11-06 20:02:55,356 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f48ec74/54034a5314664df8a01cc64c2c2de6ab/FLAG72275e579 [2018-11-06 20:02:56,039 INFO L298 CDTParser]: Found 1 translation units. [2018-11-06 20:02:56,040 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label10_true-unreach-call.c [2018-11-06 20:02:56,079 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f48ec74/54034a5314664df8a01cc64c2c2de6ab/FLAG72275e579 [2018-11-06 20:02:56,098 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97f48ec74/54034a5314664df8a01cc64c2c2de6ab [2018-11-06 20:02:56,111 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-06 20:02:56,113 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-06 20:02:56,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-06 20:02:56,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-06 20:02:56,120 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-06 20:02:56,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:02:56" (1/1) ... [2018-11-06 20:02:56,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f12b8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:56, skipping insertion in model container [2018-11-06 20:02:56,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:02:56" (1/1) ... [2018-11-06 20:02:56,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-06 20:02:56,313 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-06 20:02:57,651 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 20:02:57,656 INFO L189 MainTranslator]: Completed pre-run [2018-11-06 20:02:58,341 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-06 20:02:58,378 INFO L193 MainTranslator]: Completed translation [2018-11-06 20:02:58,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58 WrapperNode [2018-11-06 20:02:58,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-06 20:02:58,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-06 20:02:58,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-06 20:02:58,381 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-06 20:02:58,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:58,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:58,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-06 20:02:58,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-06 20:02:58,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-06 20:02:58,925 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-06 20:02:58,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:58,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:58,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:58,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:59,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:59,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:59,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... [2018-11-06 20:02:59,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-06 20:02:59,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-06 20:02:59,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-06 20:02:59,142 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-06 20:02:59,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (1/1) ... No working directory specified, using /storage/repos/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 [2018-11-06 20:02:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-06 20:02:59,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-06 20:02:59,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-06 20:03:08,072 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-06 20:03:08,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:03:08 BoogieIcfgContainer [2018-11-06 20:03:08,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-06 20:03:08,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-06 20:03:08,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-06 20:03:08,079 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-06 20:03:08,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:02:56" (1/3) ... [2018-11-06 20:03:08,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bbb5e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:03:08, skipping insertion in model container [2018-11-06 20:03:08,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:02:58" (2/3) ... [2018-11-06 20:03:08,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bbb5e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:03:08, skipping insertion in model container [2018-11-06 20:03:08,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:03:08" (3/3) ... [2018-11-06 20:03:08,083 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label10_true-unreach-call.c [2018-11-06 20:03:08,094 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-06 20:03:08,105 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-06 20:03:08,124 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-06 20:03:08,175 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-06 20:03:08,176 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-06 20:03:08,176 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-06 20:03:08,176 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-06 20:03:08,177 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-06 20:03:08,177 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-06 20:03:08,177 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-06 20:03:08,177 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-06 20:03:08,177 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-06 20:03:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states. [2018-11-06 20:03:08,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2018-11-06 20:03:08,278 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:03:08,280 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:03:08,282 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:03:08,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:03:08,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1678519723, now seen corresponding path program 1 times [2018-11-06 20:03:08,292 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:03:08,292 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:03:08,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:08,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:03:08,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:03:10,594 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-06 20:03:10,982 WARN L179 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-11-06 20:03:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 20:03:14,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:03:14,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-06 20:03:14,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-06 20:03:14,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-06 20:03:14,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-06 20:03:14,616 INFO L87 Difference]: Start difference. First operand 886 states. Second operand 6 states. [2018-11-06 20:03:31,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:03:31,426 INFO L93 Difference]: Finished difference Result 4242 states and 8309 transitions. [2018-11-06 20:03:31,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-06 20:03:31,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 811 [2018-11-06 20:03:31,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:03:31,482 INFO L225 Difference]: With dead ends: 4242 [2018-11-06 20:03:31,482 INFO L226 Difference]: Without dead ends: 3343 [2018-11-06 20:03:31,491 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 8 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-06 20:03:31,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3343 states. [2018-11-06 20:03:31,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3343 to 3340. [2018-11-06 20:03:31,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3340 states. [2018-11-06 20:03:31,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 4190 transitions. [2018-11-06 20:03:31,684 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 4190 transitions. Word has length 811 [2018-11-06 20:03:31,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:03:31,687 INFO L480 AbstractCegarLoop]: Abstraction has 3340 states and 4190 transitions. [2018-11-06 20:03:31,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-06 20:03:31,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 4190 transitions. [2018-11-06 20:03:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2018-11-06 20:03:31,716 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:03:31,717 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:03:31,717 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:03:31,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:03:31,718 INFO L82 PathProgramCache]: Analyzing trace with hash -646716109, now seen corresponding path program 1 times [2018-11-06 20:03:31,718 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:03:31,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:03:31,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:31,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:03:31,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:03:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-06 20:03:33,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:03:33,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 20:03:33,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:03:33,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:03:33,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:03:33,604 INFO L87 Difference]: Start difference. First operand 3340 states and 4190 transitions. Second operand 4 states. [2018-11-06 20:03:41,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:03:41,811 INFO L93 Difference]: Finished difference Result 7497 states and 10813 transitions. [2018-11-06 20:03:41,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:03:41,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 827 [2018-11-06 20:03:41,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:03:41,837 INFO L225 Difference]: With dead ends: 7497 [2018-11-06 20:03:41,837 INFO L226 Difference]: Without dead ends: 4978 [2018-11-06 20:03:41,841 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:03:41,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4978 states. [2018-11-06 20:03:41,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4978 to 4978. [2018-11-06 20:03:41,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4978 states. [2018-11-06 20:03:41,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4978 states to 4978 states and 7059 transitions. [2018-11-06 20:03:41,925 INFO L78 Accepts]: Start accepts. Automaton has 4978 states and 7059 transitions. Word has length 827 [2018-11-06 20:03:41,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:03:41,926 INFO L480 AbstractCegarLoop]: Abstraction has 4978 states and 7059 transitions. [2018-11-06 20:03:41,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:03:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 4978 states and 7059 transitions. [2018-11-06 20:03:41,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2018-11-06 20:03:41,955 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:03:41,955 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:03:41,956 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:03:41,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:03:41,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1657884920, now seen corresponding path program 1 times [2018-11-06 20:03:41,956 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:03:41,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:03:41,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:41,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:03:41,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:03:42,365 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-06 20:03:42,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:03:42,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 20:03:42,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 20:03:42,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 20:03:42,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:03:42,368 INFO L87 Difference]: Start difference. First operand 4978 states and 7059 transitions. Second operand 3 states. [2018-11-06 20:03:46,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:03:46,657 INFO L93 Difference]: Finished difference Result 11592 states and 17803 transitions. [2018-11-06 20:03:46,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:03:46,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 833 [2018-11-06 20:03:46,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:03:46,696 INFO L225 Difference]: With dead ends: 11592 [2018-11-06 20:03:46,696 INFO L226 Difference]: Without dead ends: 7435 [2018-11-06 20:03:46,704 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:03:46,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7435 states. [2018-11-06 20:03:46,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7435 to 7435. [2018-11-06 20:03:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7435 states. [2018-11-06 20:03:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7435 states to 7435 states and 10407 transitions. [2018-11-06 20:03:46,848 INFO L78 Accepts]: Start accepts. Automaton has 7435 states and 10407 transitions. Word has length 833 [2018-11-06 20:03:46,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:03:46,849 INFO L480 AbstractCegarLoop]: Abstraction has 7435 states and 10407 transitions. [2018-11-06 20:03:46,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 20:03:46,849 INFO L276 IsEmpty]: Start isEmpty. Operand 7435 states and 10407 transitions. [2018-11-06 20:03:46,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2018-11-06 20:03:46,872 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:03:46,873 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:03:46,873 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:03:46,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:03:46,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1068280245, now seen corresponding path program 1 times [2018-11-06 20:03:46,874 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:03:46,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:03:46,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:46,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:03:46,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:03:47,781 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 73 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-11-06 20:03:47,781 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:03:47,782 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-11-06 20:03:47,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:03:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:03:48,098 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:03:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-11-06 20:03:48,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:03:48,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 20:03:48,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:03:48,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:03:48,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:03:48,579 INFO L87 Difference]: Start difference. First operand 7435 states and 10407 transitions. Second operand 5 states. [2018-11-06 20:03:57,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:03:57,325 INFO L93 Difference]: Finished difference Result 26334 states and 38193 transitions. [2018-11-06 20:03:57,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:03:57,326 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 880 [2018-11-06 20:03:57,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:03:57,401 INFO L225 Difference]: With dead ends: 26334 [2018-11-06 20:03:57,402 INFO L226 Difference]: Without dead ends: 18080 [2018-11-06 20:03:57,416 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 883 GetRequests, 879 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:03:57,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18080 states. [2018-11-06 20:03:57,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18080 to 18080. [2018-11-06 20:03:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18080 states. [2018-11-06 20:03:57,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18080 states to 18080 states and 23919 transitions. [2018-11-06 20:03:57,779 INFO L78 Accepts]: Start accepts. Automaton has 18080 states and 23919 transitions. Word has length 880 [2018-11-06 20:03:57,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:03:57,779 INFO L480 AbstractCegarLoop]: Abstraction has 18080 states and 23919 transitions. [2018-11-06 20:03:57,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 20:03:57,779 INFO L276 IsEmpty]: Start isEmpty. Operand 18080 states and 23919 transitions. [2018-11-06 20:03:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2018-11-06 20:03:57,822 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:03:57,822 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:03:57,823 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:03:57,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:03:57,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1061811191, now seen corresponding path program 1 times [2018-11-06 20:03:57,824 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:03:57,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:03:57,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:57,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:03:57,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:03:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:03:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 129 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2018-11-06 20:03:58,572 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:03:58,572 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-11-06 20:03:58,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:03:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:03:58,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:03:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2018-11-06 20:03:59,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:03:59,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 20:03:59,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:03:59,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:03:59,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:03:59,680 INFO L87 Difference]: Start difference. First operand 18080 states and 23919 transitions. Second operand 5 states. [2018-11-06 20:04:08,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:04:08,042 INFO L93 Difference]: Finished difference Result 64004 states and 87160 transitions. [2018-11-06 20:04:08,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:04:08,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 965 [2018-11-06 20:04:08,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:04:08,153 INFO L225 Difference]: With dead ends: 64004 [2018-11-06 20:04:08,153 INFO L226 Difference]: Without dead ends: 46745 [2018-11-06 20:04:08,191 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 969 GetRequests, 964 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:04:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46745 states. [2018-11-06 20:04:09,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46745 to 46745. [2018-11-06 20:04:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46745 states. [2018-11-06 20:04:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46745 states to 46745 states and 58638 transitions. [2018-11-06 20:04:09,324 INFO L78 Accepts]: Start accepts. Automaton has 46745 states and 58638 transitions. Word has length 965 [2018-11-06 20:04:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:04:09,325 INFO L480 AbstractCegarLoop]: Abstraction has 46745 states and 58638 transitions. [2018-11-06 20:04:09,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 20:04:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 46745 states and 58638 transitions. [2018-11-06 20:04:09,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2018-11-06 20:04:09,398 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:04:09,399 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:04:09,399 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:04:09,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:04:09,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1384807802, now seen corresponding path program 1 times [2018-11-06 20:04:09,400 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:04:09,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:04:09,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:09,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:04:09,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:04:10,110 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-11-06 20:04:10,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:04:10,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-06 20:04:10,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-06 20:04:10,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-06 20:04:10,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:04:10,112 INFO L87 Difference]: Start difference. First operand 46745 states and 58638 transitions. Second operand 3 states. [2018-11-06 20:04:15,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:04:15,418 INFO L93 Difference]: Finished difference Result 127886 states and 161344 transitions. [2018-11-06 20:04:15,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:04:15,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1036 [2018-11-06 20:04:15,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:04:15,540 INFO L225 Difference]: With dead ends: 127886 [2018-11-06 20:04:15,540 INFO L226 Difference]: Without dead ends: 81962 [2018-11-06 20:04:15,615 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-06 20:04:15,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81962 states. [2018-11-06 20:04:17,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81962 to 81962. [2018-11-06 20:04:17,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81962 states. [2018-11-06 20:04:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81962 states to 81962 states and 100693 transitions. [2018-11-06 20:04:17,230 INFO L78 Accepts]: Start accepts. Automaton has 81962 states and 100693 transitions. Word has length 1036 [2018-11-06 20:04:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:04:17,231 INFO L480 AbstractCegarLoop]: Abstraction has 81962 states and 100693 transitions. [2018-11-06 20:04:17,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-06 20:04:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 81962 states and 100693 transitions. [2018-11-06 20:04:17,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1058 [2018-11-06 20:04:17,313 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:04:17,314 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:04:17,314 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:04:17,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:04:17,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1057596276, now seen corresponding path program 1 times [2018-11-06 20:04:17,315 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:04:17,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:04:17,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:17,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:04:17,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:04:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 305 proven. 4 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-11-06 20:04:18,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:04:18,327 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-11-06 20:04:18,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:04:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:04:18,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:04:19,550 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-11-06 20:04:19,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:04:19,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-11-06 20:04:19,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-06 20:04:19,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-06 20:04:19,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:04:19,573 INFO L87 Difference]: Start difference. First operand 81962 states and 100693 transitions. Second operand 5 states. [2018-11-06 20:04:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:04:28,127 INFO L93 Difference]: Finished difference Result 246641 states and 300173 transitions. [2018-11-06 20:04:28,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:04:28,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1057 [2018-11-06 20:04:28,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:04:28,957 INFO L225 Difference]: With dead ends: 246641 [2018-11-06 20:04:28,957 INFO L226 Difference]: Without dead ends: 165500 [2018-11-06 20:04:29,024 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 1056 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-06 20:04:29,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165500 states. [2018-11-06 20:04:30,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165500 to 163862. [2018-11-06 20:04:30,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163862 states. [2018-11-06 20:04:30,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163862 states to 163862 states and 188875 transitions. [2018-11-06 20:04:30,592 INFO L78 Accepts]: Start accepts. Automaton has 163862 states and 188875 transitions. Word has length 1057 [2018-11-06 20:04:30,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:04:30,592 INFO L480 AbstractCegarLoop]: Abstraction has 163862 states and 188875 transitions. [2018-11-06 20:04:30,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-06 20:04:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 163862 states and 188875 transitions. [2018-11-06 20:04:30,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1261 [2018-11-06 20:04:30,696 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:04:30,697 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:04:30,697 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:04:30,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:04:30,698 INFO L82 PathProgramCache]: Analyzing trace with hash -675512375, now seen corresponding path program 1 times [2018-11-06 20:04:30,698 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:04:30,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:04:30,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:30,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:04:30,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:04:33,321 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2018-11-06 20:04:33,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:04:33,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 20:04:33,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:04:33,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:04:33,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:04:33,324 INFO L87 Difference]: Start difference. First operand 163862 states and 188875 transitions. Second operand 4 states. [2018-11-06 20:04:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:04:40,449 INFO L93 Difference]: Finished difference Result 327722 states and 377796 transitions. [2018-11-06 20:04:40,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-06 20:04:40,450 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1260 [2018-11-06 20:04:40,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:04:40,658 INFO L225 Difference]: With dead ends: 327722 [2018-11-06 20:04:40,658 INFO L226 Difference]: Without dead ends: 164681 [2018-11-06 20:04:40,737 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:04:40,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164681 states. [2018-11-06 20:04:42,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164681 to 163862. [2018-11-06 20:04:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163862 states. [2018-11-06 20:04:42,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163862 states to 163862 states and 185914 transitions. [2018-11-06 20:04:42,327 INFO L78 Accepts]: Start accepts. Automaton has 163862 states and 185914 transitions. Word has length 1260 [2018-11-06 20:04:42,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:04:42,328 INFO L480 AbstractCegarLoop]: Abstraction has 163862 states and 185914 transitions. [2018-11-06 20:04:42,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:04:42,328 INFO L276 IsEmpty]: Start isEmpty. Operand 163862 states and 185914 transitions. [2018-11-06 20:04:42,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2018-11-06 20:04:42,412 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:04:42,413 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:04:42,413 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:04:42,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:04:42,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2143627548, now seen corresponding path program 1 times [2018-11-06 20:04:42,414 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:04:42,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:04:42,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:42,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:04:42,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:04:45,361 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2018-11-06 20:04:45,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-06 20:04:45,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-06 20:04:45,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-06 20:04:45,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-06 20:04:45,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:04:45,363 INFO L87 Difference]: Start difference. First operand 163862 states and 185914 transitions. Second operand 4 states. [2018-11-06 20:04:53,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:04:53,772 INFO L93 Difference]: Finished difference Result 327722 states and 371845 transitions. [2018-11-06 20:04:53,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-06 20:04:53,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1282 [2018-11-06 20:04:53,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:04:53,972 INFO L225 Difference]: With dead ends: 327722 [2018-11-06 20:04:53,973 INFO L226 Difference]: Without dead ends: 164681 [2018-11-06 20:04:54,072 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-06 20:04:54,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164681 states. [2018-11-06 20:04:56,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164681 to 163043. [2018-11-06 20:04:56,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163043 states. [2018-11-06 20:04:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 178044 transitions. [2018-11-06 20:04:56,577 INFO L78 Accepts]: Start accepts. Automaton has 163043 states and 178044 transitions. Word has length 1282 [2018-11-06 20:04:56,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:04:56,578 INFO L480 AbstractCegarLoop]: Abstraction has 163043 states and 178044 transitions. [2018-11-06 20:04:56,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-06 20:04:56,578 INFO L276 IsEmpty]: Start isEmpty. Operand 163043 states and 178044 transitions. [2018-11-06 20:04:56,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1349 [2018-11-06 20:04:56,655 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:04:56,656 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:04:56,656 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:04:56,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:04:56,657 INFO L82 PathProgramCache]: Analyzing trace with hash -572975571, now seen corresponding path program 1 times [2018-11-06 20:04:56,657 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:04:56,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:04:56,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:56,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:04:56,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:04:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:04:57,514 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-06 20:04:57,781 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-06 20:04:58,097 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-06 20:05:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 576 proven. 4 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2018-11-06 20:05:04,742 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:05:04,743 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-11-06 20:05:04,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:05:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:05:05,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:05:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-11-06 20:05:06,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:05:06,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-11-06 20:05:06,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-06 20:05:06,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-06 20:05:06,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-06 20:05:06,115 INFO L87 Difference]: Start difference. First operand 163043 states and 178044 transitions. Second operand 8 states. [2018-11-06 20:05:23,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:05:23,132 INFO L93 Difference]: Finished difference Result 346417 states and 378376 transitions. [2018-11-06 20:05:23,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-06 20:05:23,133 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1348 [2018-11-06 20:05:23,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:05:23,316 INFO L225 Difference]: With dead ends: 346417 [2018-11-06 20:05:23,317 INFO L226 Difference]: Without dead ends: 184195 [2018-11-06 20:05:23,397 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1368 GetRequests, 1353 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2018-11-06 20:05:23,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184195 states. [2018-11-06 20:05:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184195 to 159767. [2018-11-06 20:05:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159767 states. [2018-11-06 20:05:25,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159767 states to 159767 states and 170487 transitions. [2018-11-06 20:05:25,583 INFO L78 Accepts]: Start accepts. Automaton has 159767 states and 170487 transitions. Word has length 1348 [2018-11-06 20:05:25,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:05:25,584 INFO L480 AbstractCegarLoop]: Abstraction has 159767 states and 170487 transitions. [2018-11-06 20:05:25,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-06 20:05:25,584 INFO L276 IsEmpty]: Start isEmpty. Operand 159767 states and 170487 transitions. [2018-11-06 20:05:25,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1788 [2018-11-06 20:05:25,685 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:05:25,686 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:05:25,687 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:05:25,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:05:25,688 INFO L82 PathProgramCache]: Analyzing trace with hash -415847443, now seen corresponding path program 1 times [2018-11-06 20:05:25,688 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:05:25,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:05:25,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:05:25,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:05:25,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:05:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:05:27,524 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-06 20:05:35,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 1402 proven. 80 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-11-06 20:05:35,980 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:05:35,980 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 20:05:35,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:05:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:05:36,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:05:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1576 backedges. 972 proven. 0 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2018-11-06 20:05:38,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:05:38,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-11-06 20:05:38,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-06 20:05:38,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-06 20:05:38,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-06 20:05:38,137 INFO L87 Difference]: Start difference. First operand 159767 states and 170487 transitions. Second operand 9 states. [2018-11-06 20:05:40,918 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-11-06 20:05:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:05:58,668 INFO L93 Difference]: Finished difference Result 320850 states and 342479 transitions. [2018-11-06 20:05:58,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-06 20:05:58,669 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1787 [2018-11-06 20:05:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:05:58,839 INFO L225 Difference]: With dead ends: 320850 [2018-11-06 20:05:58,839 INFO L226 Difference]: Without dead ends: 161084 [2018-11-06 20:05:58,916 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1800 GetRequests, 1789 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-06 20:05:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161084 states. [2018-11-06 20:06:00,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161084 to 151427. [2018-11-06 20:06:00,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151427 states. [2018-11-06 20:06:00,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151427 states to 151427 states and 158669 transitions. [2018-11-06 20:06:00,662 INFO L78 Accepts]: Start accepts. Automaton has 151427 states and 158669 transitions. Word has length 1787 [2018-11-06 20:06:00,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:06:00,663 INFO L480 AbstractCegarLoop]: Abstraction has 151427 states and 158669 transitions. [2018-11-06 20:06:00,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-06 20:06:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 151427 states and 158669 transitions. [2018-11-06 20:06:00,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1853 [2018-11-06 20:06:00,766 INFO L367 BasicCegarLoop]: Found error trace [2018-11-06 20:06:00,767 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-06 20:06:00,767 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-06 20:06:00,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-06 20:06:00,768 INFO L82 PathProgramCache]: Analyzing trace with hash -285564318, now seen corresponding path program 1 times [2018-11-06 20:06:00,768 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-06 20:06:00,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-06 20:06:00,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:06:00,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:06:00,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-06 20:06:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:06:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1471 backedges. 1227 proven. 84 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2018-11-06 20:06:11,229 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-06 20:06:11,229 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-06 20:06:11,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-06 20:06:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-06 20:06:11,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-06 20:06:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1471 backedges. 1037 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2018-11-06 20:06:13,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-06 20:06:13,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 15 [2018-11-06 20:06:13,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-06 20:06:13,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-06 20:06:13,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=122, Unknown=0, NotChecked=0, Total=210 [2018-11-06 20:06:13,545 INFO L87 Difference]: Start difference. First operand 151427 states and 158669 transitions. Second operand 15 states. [2018-11-06 20:06:35,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-06 20:06:35,265 INFO L93 Difference]: Finished difference Result 302610 states and 317103 transitions. [2018-11-06 20:06:35,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-06 20:06:35,265 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1852 [2018-11-06 20:06:35,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-06 20:06:35,266 INFO L225 Difference]: With dead ends: 302610 [2018-11-06 20:06:35,266 INFO L226 Difference]: Without dead ends: 0 [2018-11-06 20:06:35,350 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1876 GetRequests, 1856 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=204, Invalid=258, Unknown=0, NotChecked=0, Total=462 [2018-11-06 20:06:35,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-06 20:06:35,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-06 20:06:35,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-06 20:06:35,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-06 20:06:35,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1852 [2018-11-06 20:06:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-06 20:06:35,352 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-06 20:06:35,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-06 20:06:35,352 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-06 20:06:35,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-06 20:06:35,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-06 20:06:35,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,636 WARN L179 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 111 [2018-11-06 20:06:35,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,719 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,743 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:35,893 WARN L179 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 111 [2018-11-06 20:06:36,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,070 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,223 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,380 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,402 WARN L179 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 651 DAG size of output: 182 [2018-11-06 20:06:36,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,554 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,618 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,768 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,776 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,779 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,869 WARN L179 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 648 DAG size of output: 182 [2018-11-06 20:06:36,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,989 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:36,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,092 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,094 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-06 20:06:37,202 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 143 Received shutdown request... [2018-11-06 20:06:37,389 WARN L187 SmtUtils]: Removed 2 from assertion stack [2018-11-06 20:06:37,390 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-11-06 20:06:37,391 INFO L168 Benchmark]: Toolchain (without parser) took 221278.92 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -521.0 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-06 20:06:37,392 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-06 20:06:37,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2265.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. [2018-11-06 20:06:37,393 INFO L168 Benchmark]: Boogie Procedure Inliner took 544.11 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2018-11-06 20:06:37,394 INFO L168 Benchmark]: Boogie Preprocessor took 217.06 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2018-11-06 20:06:37,395 INFO L168 Benchmark]: RCFGBuilder took 8931.78 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 187.2 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -96.1 MB). Peak memory consumption was 645.2 MB. Max. memory is 7.1 GB. [2018-11-06 20:06:37,396 INFO L168 Benchmark]: TraceAbstraction took 209315.25 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 379.5 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-06 20:06:37,401 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2265.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 544.11 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 217.06 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8931.78 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 187.2 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -96.1 MB). Peak memory consumption was 645.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209315.25 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.3 GB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 379.5 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4787]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 102. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown