./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be78f24495f6395b0c8bd7d622003423e0349301 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:41:31,463 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:41:31,464 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:41:31,470 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:41:31,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:41:31,470 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:41:31,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:41:31,472 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:41:31,472 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:41:31,473 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:41:31,473 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:41:31,474 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:41:31,474 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:41:31,474 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:41:31,475 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:41:31,475 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:41:31,476 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:41:31,477 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:41:31,477 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:41:31,478 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:41:31,479 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:41:31,479 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:41:31,480 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:41:31,480 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:41:31,481 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:41:31,481 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:41:31,481 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:41:31,482 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:41:31,482 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:41:31,483 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:41:31,483 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:41:31,483 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:41:31,483 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:41:31,484 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:41:31,484 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:41:31,484 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:41:31,484 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 17:41:31,491 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:41:31,491 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:41:31,492 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:41:31,492 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:41:31,492 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 17:41:31,492 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 17:41:31,493 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 17:41:31,493 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:41:31,493 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:41:31,493 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:41:31,493 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:41:31,493 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:41:31,493 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:41:31,494 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:41:31,494 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:41:31,494 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:41:31,494 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:41:31,494 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 17:41:31,494 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:41:31,494 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:41:31,494 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:41:31,495 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:41:31,495 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:41:31,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:41:31,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:41:31,495 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:41:31,495 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:41:31,495 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 17:41:31,495 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:41:31,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:41:31,496 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be78f24495f6395b0c8bd7d622003423e0349301 [2018-12-08 17:41:31,513 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:41:31,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:41:31,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:41:31,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:41:31,523 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:41:31,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i [2018-12-08 17:41:31,567 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/data/5c5693c38/53a08d0333974074ab0a6f6afd2805f0/FLAGaf467d30e [2018-12-08 17:41:32,052 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:41:32,052 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/sv-benchmarks/c/ldv-races/race-3_2-container_of-global_false-unreach-call.i [2018-12-08 17:41:32,062 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/data/5c5693c38/53a08d0333974074ab0a6f6afd2805f0/FLAGaf467d30e [2018-12-08 17:41:32,542 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/data/5c5693c38/53a08d0333974074ab0a6f6afd2805f0 [2018-12-08 17:41:32,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:41:32,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:41:32,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:41:32,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:41:32,548 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:41:32,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:41:32" (1/1) ... [2018-12-08 17:41:32,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159e01e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:32, skipping insertion in model container [2018-12-08 17:41:32,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:41:32" (1/1) ... [2018-12-08 17:41:32,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:41:32,583 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:41:33,020 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:41:33,026 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:41:33,057 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:41:33,181 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:41:33,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33 WrapperNode [2018-12-08 17:41:33,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:41:33,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:41:33,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:41:33,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:41:33,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:41:33,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:41:33,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:41:33,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:41:33,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... [2018-12-08 17:41:33,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:41:33,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:41:33,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:41:33,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:41:33,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/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 [2018-12-08 17:41:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 17:41:33,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 17:41:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 17:41:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 17:41:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:41:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:41:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2018-12-08 17:41:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2018-12-08 17:41:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 17:41:33,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 17:41:33,278 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 17:41:33,655 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:41:33,656 INFO L280 CfgBuilder]: Removed 24 assue(true) statements. [2018-12-08 17:41:33,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:41:33 BoogieIcfgContainer [2018-12-08 17:41:33,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:41:33,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:41:33,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:41:33,658 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:41:33,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:41:32" (1/3) ... [2018-12-08 17:41:33,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea9745c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:41:33, skipping insertion in model container [2018-12-08 17:41:33,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:41:33" (2/3) ... [2018-12-08 17:41:33,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea9745c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:41:33, skipping insertion in model container [2018-12-08 17:41:33,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:41:33" (3/3) ... [2018-12-08 17:41:33,660 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global_false-unreach-call.i [2018-12-08 17:41:33,682 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,682 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,682 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,682 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,682 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,682 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,683 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,684 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,684 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,684 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,684 WARN L317 ript$VariableManager]: TermVariabe Thread0_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,684 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,684 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,684 WARN L317 ript$VariableManager]: TermVariabe |Thread0_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,684 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,685 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,686 WARN L317 ript$VariableManager]: TermVariabe Thread1_my_callback_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,687 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,687 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,687 WARN L317 ript$VariableManager]: TermVariabe |Thread1_my_callback_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:41:33,700 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 17:41:33,700 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:41:33,705 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-08 17:41:33,714 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-08 17:41:33,729 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 17:41:33,730 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:41:33,730 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:41:33,730 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:41:33,730 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:41:33,730 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:41:33,730 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:41:33,730 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:41:33,730 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:41:33,737 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 137places, 145 transitions [2018-12-08 17:41:33,819 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4725 states. [2018-12-08 17:41:33,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4725 states. [2018-12-08 17:41:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 17:41:33,825 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:33,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:41:33,827 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:33,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:33,831 INFO L82 PathProgramCache]: Analyzing trace with hash 441784776, now seen corresponding path program 1 times [2018-12-08 17:41:33,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:33,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:33,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:33,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:41:33,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:34,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:34,068 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:41:34,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:41:34,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:41:34,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:41:34,082 INFO L87 Difference]: Start difference. First operand 4725 states. Second operand 6 states. [2018-12-08 17:41:34,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:34,328 INFO L93 Difference]: Finished difference Result 4724 states and 12876 transitions. [2018-12-08 17:41:34,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:41:34,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-08 17:41:34,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:34,356 INFO L225 Difference]: With dead ends: 4724 [2018-12-08 17:41:34,356 INFO L226 Difference]: Without dead ends: 3864 [2018-12-08 17:41:34,358 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-12-08 17:41:34,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2018-12-08 17:41:34,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3863. [2018-12-08 17:41:34,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3863 states. [2018-12-08 17:41:34,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3863 states to 3863 states and 10474 transitions. [2018-12-08 17:41:34,491 INFO L78 Accepts]: Start accepts. Automaton has 3863 states and 10474 transitions. Word has length 31 [2018-12-08 17:41:34,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:34,492 INFO L480 AbstractCegarLoop]: Abstraction has 3863 states and 10474 transitions. [2018-12-08 17:41:34,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:41:34,492 INFO L276 IsEmpty]: Start isEmpty. Operand 3863 states and 10474 transitions. [2018-12-08 17:41:34,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 17:41:34,493 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:34,493 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:41:34,494 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:34,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:34,494 INFO L82 PathProgramCache]: Analyzing trace with hash -804856226, now seen corresponding path program 1 times [2018-12-08 17:41:34,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:34,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:34,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:34,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:41:34,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:34,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:34,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:34,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 17:41:34,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:41:34,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:41:34,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:41:34,728 INFO L87 Difference]: Start difference. First operand 3863 states and 10474 transitions. Second operand 8 states. [2018-12-08 17:41:35,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:35,172 INFO L93 Difference]: Finished difference Result 3865 states and 10476 transitions. [2018-12-08 17:41:35,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 17:41:35,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2018-12-08 17:41:35,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:35,185 INFO L225 Difference]: With dead ends: 3865 [2018-12-08 17:41:35,185 INFO L226 Difference]: Without dead ends: 3865 [2018-12-08 17:41:35,186 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2018-12-08 17:41:35,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3865 states. [2018-12-08 17:41:35,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3865 to 3861. [2018-12-08 17:41:35,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3861 states. [2018-12-08 17:41:35,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 10472 transitions. [2018-12-08 17:41:35,243 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 10472 transitions. Word has length 37 [2018-12-08 17:41:35,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:35,243 INFO L480 AbstractCegarLoop]: Abstraction has 3861 states and 10472 transitions. [2018-12-08 17:41:35,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:41:35,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 10472 transitions. [2018-12-08 17:41:35,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-08 17:41:35,245 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:35,245 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:41:35,245 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:35,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:35,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1378309502, now seen corresponding path program 1 times [2018-12-08 17:41:35,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:35,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:35,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:35,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:41:35,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:35,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:35,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 17:41:35,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:41:35,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:41:35,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:41:35,394 INFO L87 Difference]: Start difference. First operand 3861 states and 10472 transitions. Second operand 8 states. [2018-12-08 17:41:36,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:36,168 INFO L93 Difference]: Finished difference Result 5825 states and 15810 transitions. [2018-12-08 17:41:36,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 17:41:36,168 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2018-12-08 17:41:36,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:36,182 INFO L225 Difference]: With dead ends: 5825 [2018-12-08 17:41:36,182 INFO L226 Difference]: Without dead ends: 5825 [2018-12-08 17:41:36,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:41:36,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5825 states. [2018-12-08 17:41:36,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5825 to 4385. [2018-12-08 17:41:36,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4385 states. [2018-12-08 17:41:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4385 states to 4385 states and 11916 transitions. [2018-12-08 17:41:36,247 INFO L78 Accepts]: Start accepts. Automaton has 4385 states and 11916 transitions. Word has length 55 [2018-12-08 17:41:36,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:36,247 INFO L480 AbstractCegarLoop]: Abstraction has 4385 states and 11916 transitions. [2018-12-08 17:41:36,247 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:41:36,247 INFO L276 IsEmpty]: Start isEmpty. Operand 4385 states and 11916 transitions. [2018-12-08 17:41:36,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-08 17:41:36,250 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:36,250 INFO L402 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] [2018-12-08 17:41:36,250 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:36,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:36,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1957942992, now seen corresponding path program 1 times [2018-12-08 17:41:36,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:36,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:36,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:36,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:41:36,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:36,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:36,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 17:41:36,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:41:36,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:41:36,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:41:36,365 INFO L87 Difference]: Start difference. First operand 4385 states and 11916 transitions. Second operand 8 states. [2018-12-08 17:41:37,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:37,022 INFO L93 Difference]: Finished difference Result 6349 states and 17158 transitions. [2018-12-08 17:41:37,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 17:41:37,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-12-08 17:41:37,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:37,034 INFO L225 Difference]: With dead ends: 6349 [2018-12-08 17:41:37,034 INFO L226 Difference]: Without dead ends: 5317 [2018-12-08 17:41:37,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2018-12-08 17:41:37,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5317 states. [2018-12-08 17:41:37,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5317 to 5125. [2018-12-08 17:41:37,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5125 states. [2018-12-08 17:41:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 13985 transitions. [2018-12-08 17:41:37,125 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 13985 transitions. Word has length 61 [2018-12-08 17:41:37,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:37,126 INFO L480 AbstractCegarLoop]: Abstraction has 5125 states and 13985 transitions. [2018-12-08 17:41:37,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:41:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 13985 transitions. [2018-12-08 17:41:37,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-08 17:41:37,129 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:37,129 INFO L402 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] [2018-12-08 17:41:37,130 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:37,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:37,130 INFO L82 PathProgramCache]: Analyzing trace with hash 2138401985, now seen corresponding path program 1 times [2018-12-08 17:41:37,130 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:37,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:37,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:37,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:41:37,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:37,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:37,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:37,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 17:41:37,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 17:41:37,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 17:41:37,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:41:37,184 INFO L87 Difference]: Start difference. First operand 5125 states and 13985 transitions. Second operand 5 states. [2018-12-08 17:41:37,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:37,224 INFO L93 Difference]: Finished difference Result 1780 states and 4650 transitions. [2018-12-08 17:41:37,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 17:41:37,224 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2018-12-08 17:41:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:37,226 INFO L225 Difference]: With dead ends: 1780 [2018-12-08 17:41:37,227 INFO L226 Difference]: Without dead ends: 1780 [2018-12-08 17:41:37,227 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:41:37,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2018-12-08 17:41:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1780. [2018-12-08 17:41:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1780 states. [2018-12-08 17:41:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 4650 transitions. [2018-12-08 17:41:37,244 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 4650 transitions. Word has length 67 [2018-12-08 17:41:37,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:37,245 INFO L480 AbstractCegarLoop]: Abstraction has 1780 states and 4650 transitions. [2018-12-08 17:41:37,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 17:41:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 4650 transitions. [2018-12-08 17:41:37,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:41:37,247 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:37,248 INFO L402 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] [2018-12-08 17:41:37,248 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:37,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:37,248 INFO L82 PathProgramCache]: Analyzing trace with hash -140298928, now seen corresponding path program 1 times [2018-12-08 17:41:37,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:37,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:37,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:37,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:41:37,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:37,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:37,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-12-08 17:41:37,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-08 17:41:37,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-08 17:41:37,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-12-08 17:41:37,898 INFO L87 Difference]: Start difference. First operand 1780 states and 4650 transitions. Second operand 18 states. [2018-12-08 17:41:38,598 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-08 17:41:38,732 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:41:38,897 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2018-12-08 17:41:39,146 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:41:40,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:40,198 INFO L93 Difference]: Finished difference Result 2172 states and 5448 transitions. [2018-12-08 17:41:40,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-08 17:41:40,198 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 96 [2018-12-08 17:41:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:40,201 INFO L225 Difference]: With dead ends: 2172 [2018-12-08 17:41:40,201 INFO L226 Difference]: Without dead ends: 2172 [2018-12-08 17:41:40,201 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=337, Invalid=923, Unknown=0, NotChecked=0, Total=1260 [2018-12-08 17:41:40,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2018-12-08 17:41:40,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1942. [2018-12-08 17:41:40,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1942 states. [2018-12-08 17:41:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 4978 transitions. [2018-12-08 17:41:40,229 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 4978 transitions. Word has length 96 [2018-12-08 17:41:40,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:40,229 INFO L480 AbstractCegarLoop]: Abstraction has 1942 states and 4978 transitions. [2018-12-08 17:41:40,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-08 17:41:40,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 4978 transitions. [2018-12-08 17:41:40,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:41:40,232 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:40,232 INFO L402 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] [2018-12-08 17:41:40,232 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:40,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:40,232 INFO L82 PathProgramCache]: Analyzing trace with hash -603998414, now seen corresponding path program 2 times [2018-12-08 17:41:40,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:40,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:40,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:40,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:41:40,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:40,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:40,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:40,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-12-08 17:41:40,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-08 17:41:40,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-08 17:41:40,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-12-08 17:41:40,934 INFO L87 Difference]: Start difference. First operand 1942 states and 4978 transitions. Second operand 18 states. [2018-12-08 17:41:41,730 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:41:41,875 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2018-12-08 17:41:42,023 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:41:42,272 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2018-12-08 17:41:42,415 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2018-12-08 17:41:42,546 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-12-08 17:41:42,668 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2018-12-08 17:41:42,963 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-12-08 17:41:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:43,179 INFO L93 Difference]: Finished difference Result 2544 states and 6190 transitions. [2018-12-08 17:41:43,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-08 17:41:43,179 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 96 [2018-12-08 17:41:43,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:43,181 INFO L225 Difference]: With dead ends: 2544 [2018-12-08 17:41:43,181 INFO L226 Difference]: Without dead ends: 2544 [2018-12-08 17:41:43,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=348, Invalid=912, Unknown=0, NotChecked=0, Total=1260 [2018-12-08 17:41:43,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2018-12-08 17:41:43,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1915. [2018-12-08 17:41:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2018-12-08 17:41:43,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 4915 transitions. [2018-12-08 17:41:43,199 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 4915 transitions. Word has length 96 [2018-12-08 17:41:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:43,199 INFO L480 AbstractCegarLoop]: Abstraction has 1915 states and 4915 transitions. [2018-12-08 17:41:43,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-08 17:41:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 4915 transitions. [2018-12-08 17:41:43,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:41:43,201 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:43,201 INFO L402 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] [2018-12-08 17:41:43,201 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:43,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:43,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1835827562, now seen corresponding path program 3 times [2018-12-08 17:41:43,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:43,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:43,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:43,206 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:41:43,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:43,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:43,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-12-08 17:41:43,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-08 17:41:43,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-08 17:41:43,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2018-12-08 17:41:43,798 INFO L87 Difference]: Start difference. First operand 1915 states and 4915 transitions. Second operand 18 states. [2018-12-08 17:41:44,623 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2018-12-08 17:41:44,762 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-12-08 17:41:45,042 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-12-08 17:41:45,195 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-08 17:41:45,483 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-12-08 17:41:45,628 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:41:45,751 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-12-08 17:41:46,096 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2018-12-08 17:41:46,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:46,318 INFO L93 Difference]: Finished difference Result 2557 states and 6323 transitions. [2018-12-08 17:41:46,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-12-08 17:41:46,319 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 96 [2018-12-08 17:41:46,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:46,321 INFO L225 Difference]: With dead ends: 2557 [2018-12-08 17:41:46,321 INFO L226 Difference]: Without dead ends: 2557 [2018-12-08 17:41:46,321 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=359, Invalid=901, Unknown=0, NotChecked=0, Total=1260 [2018-12-08 17:41:46,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2018-12-08 17:41:46,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2152. [2018-12-08 17:41:46,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2152 states. [2018-12-08 17:41:46,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 5534 transitions. [2018-12-08 17:41:46,342 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 5534 transitions. Word has length 96 [2018-12-08 17:41:46,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:46,342 INFO L480 AbstractCegarLoop]: Abstraction has 2152 states and 5534 transitions. [2018-12-08 17:41:46,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-08 17:41:46,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 5534 transitions. [2018-12-08 17:41:46,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:41:46,345 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:46,346 INFO L402 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] [2018-12-08 17:41:46,346 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:46,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:46,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1553470356, now seen corresponding path program 4 times [2018-12-08 17:41:46,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:46,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:46,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:46,352 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:41:46,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:47,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:47,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:41:47,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:41:47,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:41:47,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:41:47,302 INFO L87 Difference]: Start difference. First operand 2152 states and 5534 transitions. Second operand 21 states. [2018-12-08 17:41:47,979 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:41:48,128 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:41:48,299 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-08 17:41:48,718 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-12-08 17:41:48,925 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:41:49,137 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:41:49,326 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-12-08 17:41:49,541 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2018-12-08 17:41:49,757 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-12-08 17:41:50,106 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-08 17:41:50,283 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:41:50,427 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-12-08 17:41:50,816 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:41:51,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:51,068 INFO L93 Difference]: Finished difference Result 3287 states and 7934 transitions. [2018-12-08 17:41:51,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-08 17:41:51,068 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:41:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:51,071 INFO L225 Difference]: With dead ends: 3287 [2018-12-08 17:41:51,071 INFO L226 Difference]: Without dead ends: 3287 [2018-12-08 17:41:51,072 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=486, Invalid=1320, Unknown=0, NotChecked=0, Total=1806 [2018-12-08 17:41:51,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2018-12-08 17:41:51,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2329. [2018-12-08 17:41:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2329 states. [2018-12-08 17:41:51,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 5985 transitions. [2018-12-08 17:41:51,096 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 5985 transitions. Word has length 96 [2018-12-08 17:41:51,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:51,097 INFO L480 AbstractCegarLoop]: Abstraction has 2329 states and 5985 transitions. [2018-12-08 17:41:51,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:41:51,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 5985 transitions. [2018-12-08 17:41:51,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:41:51,099 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:51,100 INFO L402 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] [2018-12-08 17:41:51,100 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:51,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:51,100 INFO L82 PathProgramCache]: Analyzing trace with hash -650324874, now seen corresponding path program 5 times [2018-12-08 17:41:51,100 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:51,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:51,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:51,105 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:41:51,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:52,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:52,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:52,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:41:52,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:41:52,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:41:52,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:41:52,041 INFO L87 Difference]: Start difference. First operand 2329 states and 5985 transitions. Second operand 21 states. [2018-12-08 17:41:52,809 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:41:52,958 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:41:53,131 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-08 17:41:53,418 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-12-08 17:41:53,624 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-08 17:41:54,038 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-08 17:41:54,256 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-08 17:41:54,469 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-12-08 17:41:54,689 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-08 17:41:54,914 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-12-08 17:41:55,374 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:41:55,551 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-08 17:41:55,728 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2018-12-08 17:41:55,892 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:41:56,041 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-12-08 17:41:56,284 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-12-08 17:41:56,603 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-12-08 17:41:56,758 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:41:57,122 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2018-12-08 17:41:57,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:41:57,259 INFO L93 Difference]: Finished difference Result 5310 states and 12783 transitions. [2018-12-08 17:41:57,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-08 17:41:57,260 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:41:57,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:41:57,267 INFO L225 Difference]: With dead ends: 5310 [2018-12-08 17:41:57,267 INFO L226 Difference]: Without dead ends: 5310 [2018-12-08 17:41:57,268 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=665, Invalid=1785, Unknown=0, NotChecked=0, Total=2450 [2018-12-08 17:41:57,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5310 states. [2018-12-08 17:41:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5310 to 2362. [2018-12-08 17:41:57,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2018-12-08 17:41:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 6084 transitions. [2018-12-08 17:41:57,309 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 6084 transitions. Word has length 96 [2018-12-08 17:41:57,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:41:57,309 INFO L480 AbstractCegarLoop]: Abstraction has 2362 states and 6084 transitions. [2018-12-08 17:41:57,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:41:57,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 6084 transitions. [2018-12-08 17:41:57,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:41:57,311 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:41:57,311 INFO L402 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] [2018-12-08 17:41:57,311 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:41:57,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:41:57,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1900341518, now seen corresponding path program 6 times [2018-12-08 17:41:57,312 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:41:57,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:41:57,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:57,316 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:41:57,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:41:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:41:58,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:41:58,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:41:58,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:41:58,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:41:58,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:41:58,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:41:58,258 INFO L87 Difference]: Start difference. First operand 2362 states and 6084 transitions. Second operand 21 states. [2018-12-08 17:41:59,016 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:41:59,176 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:41:59,349 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-08 17:41:59,597 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-12-08 17:41:59,775 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-08 17:41:59,960 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-12-08 17:42:00,180 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-08 17:42:00,527 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-08 17:42:00,764 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:42:00,962 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2018-12-08 17:42:01,181 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2018-12-08 17:42:01,875 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2018-12-08 17:42:02,055 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-08 17:42:02,260 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2018-12-08 17:42:02,438 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:42:02,603 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-12-08 17:42:02,737 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-12-08 17:42:02,954 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2018-12-08 17:42:03,270 WARN L180 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:42:03,549 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:42:03,789 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-08 17:42:03,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:03,922 INFO L93 Difference]: Finished difference Result 4637 states and 11344 transitions. [2018-12-08 17:42:03,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-12-08 17:42:03,922 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:03,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:03,925 INFO L225 Difference]: With dead ends: 4637 [2018-12-08 17:42:03,925 INFO L226 Difference]: Without dead ends: 4637 [2018-12-08 17:42:03,926 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=651, Invalid=1701, Unknown=0, NotChecked=0, Total=2352 [2018-12-08 17:42:03,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2018-12-08 17:42:03,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 2461. [2018-12-08 17:42:03,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2461 states. [2018-12-08 17:42:03,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6381 transitions. [2018-12-08 17:42:03,953 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6381 transitions. Word has length 96 [2018-12-08 17:42:03,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:03,953 INFO L480 AbstractCegarLoop]: Abstraction has 2461 states and 6381 transitions. [2018-12-08 17:42:03,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:03,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6381 transitions. [2018-12-08 17:42:03,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:03,956 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:03,956 INFO L402 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] [2018-12-08 17:42:03,956 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:03,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:03,956 INFO L82 PathProgramCache]: Analyzing trace with hash -116482066, now seen corresponding path program 7 times [2018-12-08 17:42:03,956 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:03,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:03,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:03,960 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:03,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:04,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:04,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:04,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:04,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:04,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:04,905 INFO L87 Difference]: Start difference. First operand 2461 states and 6381 transitions. Second operand 21 states. [2018-12-08 17:42:05,609 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:05,910 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:42:06,069 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-12-08 17:42:06,261 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-08 17:42:06,529 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:42:06,724 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:42:06,935 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-12-08 17:42:07,159 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-12-08 17:42:07,566 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-08 17:42:07,731 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-08 17:42:07,903 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:42:08,110 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-08 17:42:08,384 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-08 17:42:08,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:08,671 INFO L93 Difference]: Finished difference Result 3589 states and 8624 transitions. [2018-12-08 17:42:08,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-08 17:42:08,672 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:08,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:08,675 INFO L225 Difference]: With dead ends: 3589 [2018-12-08 17:42:08,675 INFO L226 Difference]: Without dead ends: 3589 [2018-12-08 17:42:08,675 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=474, Invalid=1332, Unknown=0, NotChecked=0, Total=1806 [2018-12-08 17:42:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2018-12-08 17:42:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 2488. [2018-12-08 17:42:08,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2018-12-08 17:42:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 6444 transitions. [2018-12-08 17:42:08,702 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 6444 transitions. Word has length 96 [2018-12-08 17:42:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:08,702 INFO L480 AbstractCegarLoop]: Abstraction has 2488 states and 6444 transitions. [2018-12-08 17:42:08,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:08,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 6444 transitions. [2018-12-08 17:42:08,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:08,705 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:08,705 INFO L402 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] [2018-12-08 17:42:08,705 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:08,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:08,706 INFO L82 PathProgramCache]: Analyzing trace with hash 693368336, now seen corresponding path program 8 times [2018-12-08 17:42:08,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:08,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:08,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:08,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:42:08,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:09,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:09,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:09,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:09,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:09,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:09,623 INFO L87 Difference]: Start difference. First operand 2488 states and 6444 transitions. Second operand 21 states. [2018-12-08 17:42:10,302 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:10,606 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:42:10,798 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:42:10,982 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-12-08 17:42:11,191 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-08 17:42:11,433 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-12-08 17:42:11,677 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-08 17:42:12,060 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-08 17:42:12,217 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-08 17:42:12,371 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:42:12,595 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-08 17:42:12,881 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-08 17:42:13,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:13,174 INFO L93 Difference]: Finished difference Result 3752 states and 8953 transitions. [2018-12-08 17:42:13,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:42:13,174 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:13,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:13,176 INFO L225 Difference]: With dead ends: 3752 [2018-12-08 17:42:13,176 INFO L226 Difference]: Without dead ends: 3752 [2018-12-08 17:42:13,177 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=444, Invalid=1278, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:42:13,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3752 states. [2018-12-08 17:42:13,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3752 to 2490. [2018-12-08 17:42:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2490 states. [2018-12-08 17:42:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 6449 transitions. [2018-12-08 17:42:13,201 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 6449 transitions. Word has length 96 [2018-12-08 17:42:13,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:13,201 INFO L480 AbstractCegarLoop]: Abstraction has 2490 states and 6449 transitions. [2018-12-08 17:42:13,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:13,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 6449 transitions. [2018-12-08 17:42:13,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:13,203 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:13,204 INFO L402 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] [2018-12-08 17:42:13,204 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:13,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:13,204 INFO L82 PathProgramCache]: Analyzing trace with hash 616411506, now seen corresponding path program 9 times [2018-12-08 17:42:13,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:13,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:13,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:13,207 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:13,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:14,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:14,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:14,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:14,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:14,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:14,130 INFO L87 Difference]: Start difference. First operand 2490 states and 6449 transitions. Second operand 21 states. [2018-12-08 17:42:14,729 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-08 17:42:14,959 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:15,237 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:42:15,423 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-08 17:42:15,640 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-08 17:42:15,856 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-08 17:42:16,061 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-08 17:42:16,292 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-12-08 17:42:16,664 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-08 17:42:16,827 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-08 17:42:17,120 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:42:17,378 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-08 17:42:17,570 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2018-12-08 17:42:17,810 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2018-12-08 17:42:17,967 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-08 17:42:18,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:18,235 INFO L93 Difference]: Finished difference Result 3457 states and 8359 transitions. [2018-12-08 17:42:18,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:42:18,235 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:18,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:18,237 INFO L225 Difference]: With dead ends: 3457 [2018-12-08 17:42:18,237 INFO L226 Difference]: Without dead ends: 3457 [2018-12-08 17:42:18,238 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=445, Invalid=1277, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:42:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3457 states. [2018-12-08 17:42:18,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3457 to 2496. [2018-12-08 17:42:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2018-12-08 17:42:18,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 6464 transitions. [2018-12-08 17:42:18,260 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 6464 transitions. Word has length 96 [2018-12-08 17:42:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:18,261 INFO L480 AbstractCegarLoop]: Abstraction has 2496 states and 6464 transitions. [2018-12-08 17:42:18,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 6464 transitions. [2018-12-08 17:42:18,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:18,262 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:18,263 INFO L402 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] [2018-12-08 17:42:18,263 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:18,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:18,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1942730590, now seen corresponding path program 10 times [2018-12-08 17:42:18,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:18,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:18,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:18,267 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:18,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:19,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:19,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:19,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:19,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:19,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:19,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:19,234 INFO L87 Difference]: Start difference. First operand 2496 states and 6464 transitions. Second operand 21 states. [2018-12-08 17:42:19,954 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:20,145 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:42:20,315 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:42:20,517 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2018-12-08 17:42:20,881 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-08 17:42:21,068 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2018-12-08 17:42:21,264 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-08 17:42:21,487 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2018-12-08 17:42:21,937 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:42:22,128 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-08 17:42:22,300 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-12-08 17:42:22,537 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-12-08 17:42:22,723 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-12-08 17:42:23,002 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2018-12-08 17:42:23,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:23,014 INFO L93 Difference]: Finished difference Result 5854 states and 14349 transitions. [2018-12-08 17:42:23,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:42:23,014 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:23,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:23,017 INFO L225 Difference]: With dead ends: 5854 [2018-12-08 17:42:23,017 INFO L226 Difference]: Without dead ends: 5854 [2018-12-08 17:42:23,018 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=466, Invalid=1256, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:42:23,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5854 states. [2018-12-08 17:42:23,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5854 to 2540. [2018-12-08 17:42:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-12-08 17:42:23,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-12-08 17:42:23,044 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-12-08 17:42:23,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:23,044 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-12-08 17:42:23,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:23,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-12-08 17:42:23,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:23,046 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:23,046 INFO L402 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] [2018-12-08 17:42:23,046 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:23,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:23,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1102220062, now seen corresponding path program 11 times [2018-12-08 17:42:23,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:23,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:23,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:23,050 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:23,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:23,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:23,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:23,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:23,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:23,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:23,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:23,972 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-12-08 17:42:24,726 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:24,938 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:42:25,119 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-08 17:42:25,330 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2018-12-08 17:42:25,512 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2018-12-08 17:42:25,747 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2018-12-08 17:42:26,177 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-08 17:42:26,418 WARN L180 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-12-08 17:42:26,640 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-12-08 17:42:27,095 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2018-12-08 17:42:27,272 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2018-12-08 17:42:27,469 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2018-12-08 17:42:27,655 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-12-08 17:42:27,828 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2018-12-08 17:42:27,998 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2018-12-08 17:42:28,224 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2018-12-08 17:42:28,396 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-12-08 17:42:28,568 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-08 17:42:28,831 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-12-08 17:42:28,963 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-12-08 17:42:28,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:28,971 INFO L93 Difference]: Finished difference Result 6960 states and 17185 transitions. [2018-12-08 17:42:28,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-08 17:42:28,972 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:28,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:28,976 INFO L225 Difference]: With dead ends: 6960 [2018-12-08 17:42:28,976 INFO L226 Difference]: Without dead ends: 6960 [2018-12-08 17:42:28,976 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2018-12-08 17:42:28,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2018-12-08 17:42:29,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 2507. [2018-12-08 17:42:29,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-12-08 17:42:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 6497 transitions. [2018-12-08 17:42:29,004 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 6497 transitions. Word has length 96 [2018-12-08 17:42:29,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:29,004 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 6497 transitions. [2018-12-08 17:42:29,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:29,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 6497 transitions. [2018-12-08 17:42:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:29,006 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:29,006 INFO L402 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] [2018-12-08 17:42:29,006 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:29,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:29,006 INFO L82 PathProgramCache]: Analyzing trace with hash 299758062, now seen corresponding path program 12 times [2018-12-08 17:42:29,007 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:29,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:29,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:29,009 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:29,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:29,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:29,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:29,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:29,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:29,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:29,930 INFO L87 Difference]: Start difference. First operand 2507 states and 6497 transitions. Second operand 21 states. [2018-12-08 17:42:30,604 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:30,808 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:42:31,070 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:42:31,256 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-12-08 17:42:31,460 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-08 17:42:31,661 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-12-08 17:42:31,890 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-08 17:42:32,263 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2018-12-08 17:42:32,452 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-12-08 17:42:32,623 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2018-12-08 17:42:32,873 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-12-08 17:42:33,208 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-12-08 17:42:33,531 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2018-12-08 17:42:33,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:33,548 INFO L93 Difference]: Finished difference Result 4983 states and 12154 transitions. [2018-12-08 17:42:33,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:42:33,548 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:33,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:33,551 INFO L225 Difference]: With dead ends: 4983 [2018-12-08 17:42:33,551 INFO L226 Difference]: Without dead ends: 4983 [2018-12-08 17:42:33,552 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=455, Invalid=1267, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:42:33,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4983 states. [2018-12-08 17:42:33,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4983 to 2509. [2018-12-08 17:42:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2509 states. [2018-12-08 17:42:33,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 6502 transitions. [2018-12-08 17:42:33,577 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 6502 transitions. Word has length 96 [2018-12-08 17:42:33,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:33,578 INFO L480 AbstractCegarLoop]: Abstraction has 2509 states and 6502 transitions. [2018-12-08 17:42:33,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:33,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 6502 transitions. [2018-12-08 17:42:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:33,580 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:33,580 INFO L402 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] [2018-12-08 17:42:33,580 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:33,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:33,581 INFO L82 PathProgramCache]: Analyzing trace with hash 222801232, now seen corresponding path program 13 times [2018-12-08 17:42:33,581 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:33,581 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:33,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:33,584 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:33,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:33,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:34,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:34,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:34,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:34,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:34,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:34,494 INFO L87 Difference]: Start difference. First operand 2509 states and 6502 transitions. Second operand 21 states. [2018-12-08 17:42:35,274 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:35,470 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-08 17:42:35,738 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-08 17:42:35,936 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-08 17:42:36,153 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-08 17:42:36,351 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-08 17:42:36,598 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-12-08 17:42:37,119 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2018-12-08 17:42:37,300 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-12-08 17:42:37,482 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-08 17:42:37,628 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2018-12-08 17:42:38,018 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-12-08 17:42:38,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:38,297 INFO L93 Difference]: Finished difference Result 4880 states and 11957 transitions. [2018-12-08 17:42:38,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:42:38,297 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:38,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:38,300 INFO L225 Difference]: With dead ends: 4880 [2018-12-08 17:42:38,300 INFO L226 Difference]: Without dead ends: 4880 [2018-12-08 17:42:38,300 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=456, Invalid=1266, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:42:38,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4880 states. [2018-12-08 17:42:38,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4880 to 2507. [2018-12-08 17:42:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-12-08 17:42:38,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 6497 transitions. [2018-12-08 17:42:38,324 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 6497 transitions. Word has length 96 [2018-12-08 17:42:38,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:38,324 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 6497 transitions. [2018-12-08 17:42:38,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:38,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 6497 transitions. [2018-12-08 17:42:38,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:38,326 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:38,326 INFO L402 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] [2018-12-08 17:42:38,326 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:38,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:38,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1985905136, now seen corresponding path program 14 times [2018-12-08 17:42:38,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:38,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:38,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:38,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:42:38,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:39,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:39,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:39,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:39,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:39,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:39,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:39,210 INFO L87 Difference]: Start difference. First operand 2507 states and 6497 transitions. Second operand 21 states. [2018-12-08 17:42:39,962 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:40,175 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-08 17:42:40,357 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-12-08 17:42:40,560 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:42:40,763 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:42:40,985 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2018-12-08 17:42:41,452 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-08 17:42:41,653 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-08 17:42:41,876 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-12-08 17:42:42,319 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-12-08 17:42:42,532 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-12-08 17:42:42,731 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-12-08 17:42:42,957 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-12-08 17:42:43,142 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-12-08 17:42:43,346 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2018-12-08 17:42:43,631 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-08 17:42:43,882 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-08 17:42:44,159 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2018-12-08 17:42:44,298 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:42:44,452 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2018-12-08 17:42:44,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:44,465 INFO L93 Difference]: Finished difference Result 5593 states and 13805 transitions. [2018-12-08 17:42:44,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-08 17:42:44,466 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:44,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:44,469 INFO L225 Difference]: With dead ends: 5593 [2018-12-08 17:42:44,469 INFO L226 Difference]: Without dead ends: 5593 [2018-12-08 17:42:44,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=605, Invalid=1557, Unknown=0, NotChecked=0, Total=2162 [2018-12-08 17:42:44,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5593 states. [2018-12-08 17:42:44,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5593 to 2540. [2018-12-08 17:42:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-12-08 17:42:44,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-12-08 17:42:44,499 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-12-08 17:42:44,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:44,499 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-12-08 17:42:44,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:44,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-12-08 17:42:44,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:44,501 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:44,501 INFO L402 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] [2018-12-08 17:42:44,501 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:44,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:44,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1497924796, now seen corresponding path program 15 times [2018-12-08 17:42:44,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:44,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:44,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:44,504 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:44,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:45,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:45,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:45,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:45,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:45,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:45,487 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-12-08 17:42:46,219 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:42:46,450 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-08 17:42:46,646 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-12-08 17:42:46,891 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:42:47,355 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2018-12-08 17:42:47,766 WARN L180 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-12-08 17:42:47,968 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2018-12-08 17:42:48,218 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2018-12-08 17:42:48,742 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2018-12-08 17:42:48,961 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-12-08 17:42:49,134 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-12-08 17:42:49,377 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2018-12-08 17:42:49,617 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-08 17:42:49,909 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:42:49,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:49,922 INFO L93 Difference]: Finished difference Result 4425 states and 10876 transitions. [2018-12-08 17:42:49,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:42:49,922 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:49,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:49,924 INFO L225 Difference]: With dead ends: 4425 [2018-12-08 17:42:49,924 INFO L226 Difference]: Without dead ends: 4425 [2018-12-08 17:42:49,925 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:42:49,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4425 states. [2018-12-08 17:42:49,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4425 to 2540. [2018-12-08 17:42:49,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2540 states. [2018-12-08 17:42:49,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6596 transitions. [2018-12-08 17:42:49,945 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6596 transitions. Word has length 96 [2018-12-08 17:42:49,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:49,945 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6596 transitions. [2018-12-08 17:42:49,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:49,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6596 transitions. [2018-12-08 17:42:49,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:49,947 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:49,947 INFO L402 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] [2018-12-08 17:42:49,947 INFO L423 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:49,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:49,948 INFO L82 PathProgramCache]: Analyzing trace with hash 239788884, now seen corresponding path program 16 times [2018-12-08 17:42:49,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:49,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:49,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:49,951 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:49,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:50,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:50,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:50,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:50,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:50,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:50,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:50,824 INFO L87 Difference]: Start difference. First operand 2540 states and 6596 transitions. Second operand 21 states. [2018-12-08 17:42:51,769 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:42:51,981 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-12-08 17:42:52,230 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-08 17:42:52,493 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:42:52,756 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:42:52,962 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-12-08 17:42:53,187 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2018-12-08 17:42:53,658 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-08 17:42:53,799 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-08 17:42:54,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:54,458 INFO L93 Difference]: Finished difference Result 3269 states and 8034 transitions. [2018-12-08 17:42:54,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-08 17:42:54,459 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:54,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:54,460 INFO L225 Difference]: With dead ends: 3269 [2018-12-08 17:42:54,460 INFO L226 Difference]: Without dead ends: 3269 [2018-12-08 17:42:54,461 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=464, Invalid=1342, Unknown=0, NotChecked=0, Total=1806 [2018-12-08 17:42:54,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2018-12-08 17:42:54,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 2480. [2018-12-08 17:42:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2480 states. [2018-12-08 17:42:54,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 6455 transitions. [2018-12-08 17:42:54,480 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 6455 transitions. Word has length 96 [2018-12-08 17:42:54,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:54,480 INFO L480 AbstractCegarLoop]: Abstraction has 2480 states and 6455 transitions. [2018-12-08 17:42:54,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 6455 transitions. [2018-12-08 17:42:54,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:54,482 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:54,482 INFO L402 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] [2018-12-08 17:42:54,482 INFO L423 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:54,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:54,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1049639286, now seen corresponding path program 17 times [2018-12-08 17:42:54,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:54,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:54,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:54,485 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:54,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:55,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:55,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:55,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:55,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:55,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:55,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:55,395 INFO L87 Difference]: Start difference. First operand 2480 states and 6455 transitions. Second operand 21 states. [2018-12-08 17:42:56,347 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:42:56,599 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:42:56,790 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2018-12-08 17:42:57,000 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-08 17:42:57,199 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-12-08 17:42:57,424 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-08 17:42:57,906 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-08 17:42:58,036 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-08 17:42:58,830 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-12-08 17:42:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:42:58,848 INFO L93 Difference]: Finished difference Result 3810 states and 9142 transitions. [2018-12-08 17:42:58,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-08 17:42:58,849 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:42:58,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:42:58,851 INFO L225 Difference]: With dead ends: 3810 [2018-12-08 17:42:58,851 INFO L226 Difference]: Without dead ends: 3810 [2018-12-08 17:42:58,851 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=433, Invalid=1289, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:42:58,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2018-12-08 17:42:58,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 2482. [2018-12-08 17:42:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2482 states. [2018-12-08 17:42:58,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 6460 transitions. [2018-12-08 17:42:58,872 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 6460 transitions. Word has length 96 [2018-12-08 17:42:58,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:42:58,872 INFO L480 AbstractCegarLoop]: Abstraction has 2482 states and 6460 transitions. [2018-12-08 17:42:58,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:42:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 6460 transitions. [2018-12-08 17:42:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:42:58,874 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:42:58,874 INFO L402 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] [2018-12-08 17:42:58,874 INFO L423 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:42:58,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:42:58,874 INFO L82 PathProgramCache]: Analyzing trace with hash 972682456, now seen corresponding path program 18 times [2018-12-08 17:42:58,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:42:58,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:42:58,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:58,877 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:42:58,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:42:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:42:59,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:42:59,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:42:59,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:42:59,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:42:59,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:42:59,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:42:59,751 INFO L87 Difference]: Start difference. First operand 2482 states and 6460 transitions. Second operand 21 states. [2018-12-08 17:43:00,647 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-08 17:43:00,853 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-12-08 17:43:01,050 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2018-12-08 17:43:01,268 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2018-12-08 17:43:01,460 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-08 17:43:01,685 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2018-12-08 17:43:02,089 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-08 17:43:02,303 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-08 17:43:02,460 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-08 17:43:02,998 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2018-12-08 17:43:03,419 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-12-08 17:43:03,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:03,466 INFO L93 Difference]: Finished difference Result 3515 states and 8548 transitions. [2018-12-08 17:43:03,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-08 17:43:03,467 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:03,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:03,470 INFO L225 Difference]: With dead ends: 3515 [2018-12-08 17:43:03,471 INFO L226 Difference]: Without dead ends: 3515 [2018-12-08 17:43:03,471 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=434, Invalid=1288, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:43:03,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-12-08 17:43:03,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 2474. [2018-12-08 17:43:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2474 states. [2018-12-08 17:43:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 6440 transitions. [2018-12-08 17:43:03,506 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 6440 transitions. Word has length 96 [2018-12-08 17:43:03,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:03,506 INFO L480 AbstractCegarLoop]: Abstraction has 2474 states and 6440 transitions. [2018-12-08 17:43:03,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:03,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 6440 transitions. [2018-12-08 17:43:03,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:03,508 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:03,508 INFO L402 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] [2018-12-08 17:43:03,508 INFO L423 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:03,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:03,509 INFO L82 PathProgramCache]: Analyzing trace with hash 786522964, now seen corresponding path program 19 times [2018-12-08 17:43:03,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:03,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:03,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:03,512 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:03,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:04,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:04,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:04,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:04,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:04,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:04,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:04,402 INFO L87 Difference]: Start difference. First operand 2474 states and 6440 transitions. Second operand 21 states. [2018-12-08 17:43:05,453 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-12-08 17:43:05,654 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2018-12-08 17:43:05,844 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-12-08 17:43:06,056 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-08 17:43:06,260 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2018-12-08 17:43:06,496 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-08 17:43:06,874 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-08 17:43:07,010 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-08 17:43:07,140 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-08 17:43:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:07,845 INFO L93 Difference]: Finished difference Result 3489 states and 8492 transitions. [2018-12-08 17:43:07,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-08 17:43:07,845 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:07,847 INFO L225 Difference]: With dead ends: 3489 [2018-12-08 17:43:07,847 INFO L226 Difference]: Without dead ends: 3489 [2018-12-08 17:43:07,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=433, Invalid=1289, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:43:07,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2018-12-08 17:43:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 2482. [2018-12-08 17:43:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2482 states. [2018-12-08 17:43:07,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2482 states to 2482 states and 6460 transitions. [2018-12-08 17:43:07,871 INFO L78 Accepts]: Start accepts. Automaton has 2482 states and 6460 transitions. Word has length 96 [2018-12-08 17:43:07,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:07,871 INFO L480 AbstractCegarLoop]: Abstraction has 2482 states and 6460 transitions. [2018-12-08 17:43:07,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:07,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2482 states and 6460 transitions. [2018-12-08 17:43:07,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:07,873 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:07,873 INFO L402 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] [2018-12-08 17:43:07,873 INFO L423 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:07,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:07,873 INFO L82 PathProgramCache]: Analyzing trace with hash 709566134, now seen corresponding path program 20 times [2018-12-08 17:43:07,873 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:07,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:07,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:07,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:43:07,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:08,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:08,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:08,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:08,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:08,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:08,739 INFO L87 Difference]: Start difference. First operand 2482 states and 6460 transitions. Second operand 21 states. [2018-12-08 17:43:09,522 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2018-12-08 17:43:09,700 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-12-08 17:43:09,900 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-12-08 17:43:10,111 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2018-12-08 17:43:10,325 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2018-12-08 17:43:10,529 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-08 17:43:10,764 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2018-12-08 17:43:11,138 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-08 17:43:11,292 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-08 17:43:11,420 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-08 17:43:12,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:12,057 INFO L93 Difference]: Finished difference Result 3707 states and 8945 transitions. [2018-12-08 17:43:12,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-12-08 17:43:12,058 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:12,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:12,060 INFO L225 Difference]: With dead ends: 3707 [2018-12-08 17:43:12,060 INFO L226 Difference]: Without dead ends: 3707 [2018-12-08 17:43:12,060 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=434, Invalid=1288, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:43:12,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2018-12-08 17:43:12,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 2480. [2018-12-08 17:43:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2480 states. [2018-12-08 17:43:12,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 6455 transitions. [2018-12-08 17:43:12,081 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 6455 transitions. Word has length 96 [2018-12-08 17:43:12,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:12,081 INFO L480 AbstractCegarLoop]: Abstraction has 2480 states and 6455 transitions. [2018-12-08 17:43:12,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 6455 transitions. [2018-12-08 17:43:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:12,083 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:12,083 INFO L402 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] [2018-12-08 17:43:12,083 INFO L423 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:12,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:12,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1292440404, now seen corresponding path program 21 times [2018-12-08 17:43:12,083 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:12,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:12,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:12,086 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:12,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:12,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:12,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:12,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:12,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:12,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:12,973 INFO L87 Difference]: Start difference. First operand 2480 states and 6455 transitions. Second operand 21 states. [2018-12-08 17:43:13,576 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-08 17:43:14,036 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-12-08 17:43:14,273 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2018-12-08 17:43:14,454 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2018-12-08 17:43:14,689 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:43:14,923 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-08 17:43:15,121 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-08 17:43:15,347 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2018-12-08 17:43:15,844 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-08 17:43:16,113 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-12-08 17:43:16,359 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-12-08 17:43:16,800 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 32 [2018-12-08 17:43:17,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:17,049 INFO L93 Difference]: Finished difference Result 3192 states and 7893 transitions. [2018-12-08 17:43:17,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-08 17:43:17,050 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:17,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:17,052 INFO L225 Difference]: With dead ends: 3192 [2018-12-08 17:43:17,052 INFO L226 Difference]: Without dead ends: 3192 [2018-12-08 17:43:17,052 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=466, Invalid=1340, Unknown=0, NotChecked=0, Total=1806 [2018-12-08 17:43:17,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3192 states. [2018-12-08 17:43:17,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3192 to 2498. [2018-12-08 17:43:17,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2018-12-08 17:43:17,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 6500 transitions. [2018-12-08 17:43:17,069 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 6500 transitions. Word has length 96 [2018-12-08 17:43:17,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:17,070 INFO L480 AbstractCegarLoop]: Abstraction has 2498 states and 6500 transitions. [2018-12-08 17:43:17,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:17,070 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 6500 transitions. [2018-12-08 17:43:17,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:17,071 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:17,071 INFO L402 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] [2018-12-08 17:43:17,072 INFO L423 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:17,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:17,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1448148870, now seen corresponding path program 22 times [2018-12-08 17:43:17,072 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:17,072 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:17,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:17,075 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:17,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:18,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:18,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:18,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:18,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:18,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:18,088 INFO L87 Difference]: Start difference. First operand 2498 states and 6500 transitions. Second operand 21 states. [2018-12-08 17:43:18,838 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:43:19,018 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:43:19,192 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2018-12-08 17:43:19,394 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2018-12-08 17:43:19,760 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2018-12-08 17:43:19,950 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2018-12-08 17:43:20,160 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-08 17:43:20,385 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2018-12-08 17:43:20,811 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-12-08 17:43:21,015 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:43:21,180 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2018-12-08 17:43:21,415 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2018-12-08 17:43:21,612 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-08 17:43:21,895 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2018-12-08 17:43:21,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:21,907 INFO L93 Difference]: Finished difference Result 4235 states and 10394 transitions. [2018-12-08 17:43:21,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:43:21,908 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:21,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:21,911 INFO L225 Difference]: With dead ends: 4235 [2018-12-08 17:43:21,911 INFO L226 Difference]: Without dead ends: 4235 [2018-12-08 17:43:21,911 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=466, Invalid=1256, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:43:21,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4235 states. [2018-12-08 17:43:21,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4235 to 2498. [2018-12-08 17:43:21,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2498 states. [2018-12-08 17:43:21,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 6500 transitions. [2018-12-08 17:43:21,932 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 6500 transitions. Word has length 96 [2018-12-08 17:43:21,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:21,932 INFO L480 AbstractCegarLoop]: Abstraction has 2498 states and 6500 transitions. [2018-12-08 17:43:21,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:21,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 6500 transitions. [2018-12-08 17:43:21,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:21,934 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:21,934 INFO L402 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] [2018-12-08 17:43:21,934 INFO L423 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:21,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:21,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1596801782, now seen corresponding path program 23 times [2018-12-08 17:43:21,934 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:21,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:21,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:21,937 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:21,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:22,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:22,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:22,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:22,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:22,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:22,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:22,845 INFO L87 Difference]: Start difference. First operand 2498 states and 6500 transitions. Second operand 21 states. [2018-12-08 17:43:23,696 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:43:23,893 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 39 [2018-12-08 17:43:24,083 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:43:24,296 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2018-12-08 17:43:24,496 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-12-08 17:43:24,750 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2018-12-08 17:43:25,232 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2018-12-08 17:43:25,432 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-08 17:43:25,667 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2018-12-08 17:43:26,175 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2018-12-08 17:43:26,536 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:43:26,996 WARN L180 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2018-12-08 17:43:27,277 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-08 17:43:27,457 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-12-08 17:43:27,639 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-12-08 17:43:27,984 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2018-12-08 17:43:28,151 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2018-12-08 17:43:28,295 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:43:28,569 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-12-08 17:43:28,749 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2018-12-08 17:43:28,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:28,766 INFO L93 Difference]: Finished difference Result 5297 states and 13147 transitions. [2018-12-08 17:43:28,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-08 17:43:28,767 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:28,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:28,770 INFO L225 Difference]: With dead ends: 5297 [2018-12-08 17:43:28,770 INFO L226 Difference]: Without dead ends: 5297 [2018-12-08 17:43:28,771 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2018-12-08 17:43:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2018-12-08 17:43:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 2465. [2018-12-08 17:43:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2465 states. [2018-12-08 17:43:28,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 6401 transitions. [2018-12-08 17:43:28,799 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 6401 transitions. Word has length 96 [2018-12-08 17:43:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:28,799 INFO L480 AbstractCegarLoop]: Abstraction has 2465 states and 6401 transitions. [2018-12-08 17:43:28,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 6401 transitions. [2018-12-08 17:43:28,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:28,800 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:28,801 INFO L402 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] [2018-12-08 17:43:28,801 INFO L423 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:28,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:28,801 INFO L82 PathProgramCache]: Analyzing trace with hash 794339782, now seen corresponding path program 24 times [2018-12-08 17:43:28,801 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:28,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:28,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:28,804 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:28,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:29,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:29,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:29,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:29,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:29,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:29,730 INFO L87 Difference]: Start difference. First operand 2465 states and 6401 transitions. Second operand 21 states. [2018-12-08 17:43:30,459 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:43:30,637 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:43:30,941 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-12-08 17:43:31,126 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-12-08 17:43:31,329 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-12-08 17:43:31,532 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-08 17:43:31,766 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-12-08 17:43:32,216 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2018-12-08 17:43:32,404 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2018-12-08 17:43:32,577 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:43:32,822 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2018-12-08 17:43:33,146 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:43:33,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:33,451 INFO L93 Difference]: Finished difference Result 4435 states and 10826 transitions. [2018-12-08 17:43:33,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:43:33,451 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:33,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:33,454 INFO L225 Difference]: With dead ends: 4435 [2018-12-08 17:43:33,454 INFO L226 Difference]: Without dead ends: 4435 [2018-12-08 17:43:33,454 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=455, Invalid=1267, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:43:33,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4435 states. [2018-12-08 17:43:33,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4435 to 2467. [2018-12-08 17:43:33,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2467 states. [2018-12-08 17:43:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 6406 transitions. [2018-12-08 17:43:33,476 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 6406 transitions. Word has length 96 [2018-12-08 17:43:33,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:33,476 INFO L480 AbstractCegarLoop]: Abstraction has 2467 states and 6406 transitions. [2018-12-08 17:43:33,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 6406 transitions. [2018-12-08 17:43:33,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:33,478 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:33,478 INFO L402 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] [2018-12-08 17:43:33,478 INFO L423 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:33,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:33,478 INFO L82 PathProgramCache]: Analyzing trace with hash 717382952, now seen corresponding path program 25 times [2018-12-08 17:43:33,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:33,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:33,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:33,481 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:33,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:34,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:34,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:34,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:34,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:34,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:34,534 INFO L87 Difference]: Start difference. First operand 2467 states and 6406 transitions. Second operand 21 states. [2018-12-08 17:43:35,273 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:43:35,452 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-12-08 17:43:35,772 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2018-12-08 17:43:36,098 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-08 17:43:36,431 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-08 17:43:36,840 WARN L180 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-08 17:43:37,182 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2018-12-08 17:43:37,622 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2018-12-08 17:43:37,804 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:43:37,977 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-12-08 17:43:38,120 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2018-12-08 17:43:38,505 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2018-12-08 17:43:38,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:38,766 INFO L93 Difference]: Finished difference Result 4332 states and 10629 transitions. [2018-12-08 17:43:38,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:43:38,766 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:38,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:38,769 INFO L225 Difference]: With dead ends: 4332 [2018-12-08 17:43:38,769 INFO L226 Difference]: Without dead ends: 4332 [2018-12-08 17:43:38,769 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=456, Invalid=1266, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:43:38,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2018-12-08 17:43:38,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 2465. [2018-12-08 17:43:38,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2465 states. [2018-12-08 17:43:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2465 states to 2465 states and 6401 transitions. [2018-12-08 17:43:38,790 INFO L78 Accepts]: Start accepts. Automaton has 2465 states and 6401 transitions. Word has length 96 [2018-12-08 17:43:38,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:38,790 INFO L480 AbstractCegarLoop]: Abstraction has 2465 states and 6401 transitions. [2018-12-08 17:43:38,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:38,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2465 states and 6401 transitions. [2018-12-08 17:43:38,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:38,791 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:38,791 INFO L402 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] [2018-12-08 17:43:38,792 INFO L423 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:38,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:38,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1491323416, now seen corresponding path program 26 times [2018-12-08 17:43:38,792 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:38,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:38,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:38,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:43:38,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:39,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:39,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:39,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:39,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:39,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:39,697 INFO L87 Difference]: Start difference. First operand 2465 states and 6401 transitions. Second operand 21 states. [2018-12-08 17:43:40,440 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:43:40,629 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-12-08 17:43:40,851 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-08 17:43:41,067 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-08 17:43:41,247 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-08 17:43:41,501 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2018-12-08 17:43:42,212 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-12-08 17:43:42,404 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-12-08 17:43:42,629 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2018-12-08 17:43:43,201 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-12-08 17:43:43,440 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2018-12-08 17:43:43,639 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-12-08 17:43:43,847 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2018-12-08 17:43:44,046 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-08 17:43:44,227 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2018-12-08 17:43:44,432 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2018-12-08 17:43:44,627 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2018-12-08 17:43:44,906 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-12-08 17:43:45,051 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:43:45,208 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2018-12-08 17:43:45,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:45,225 INFO L93 Difference]: Finished difference Result 6306 states and 15694 transitions. [2018-12-08 17:43:45,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-12-08 17:43:45,225 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:45,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:45,229 INFO L225 Difference]: With dead ends: 6306 [2018-12-08 17:43:45,229 INFO L226 Difference]: Without dead ends: 6306 [2018-12-08 17:43:45,229 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=605, Invalid=1557, Unknown=0, NotChecked=0, Total=2162 [2018-12-08 17:43:45,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2018-12-08 17:43:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 2476. [2018-12-08 17:43:45,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2018-12-08 17:43:45,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 6434 transitions. [2018-12-08 17:43:45,255 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 6434 transitions. Word has length 96 [2018-12-08 17:43:45,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:45,255 INFO L480 AbstractCegarLoop]: Abstraction has 2476 states and 6434 transitions. [2018-12-08 17:43:45,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 6434 transitions. [2018-12-08 17:43:45,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:45,257 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:45,257 INFO L402 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] [2018-12-08 17:43:45,257 INFO L423 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:45,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:45,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1003343076, now seen corresponding path program 27 times [2018-12-08 17:43:45,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:45,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:45,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:45,260 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:45,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:46,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:46,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:46,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:46,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:46,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:46,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:46,183 INFO L87 Difference]: Start difference. First operand 2476 states and 6434 transitions. Second operand 21 states. [2018-12-08 17:43:46,983 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-08 17:43:47,341 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:43:47,562 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 38 [2018-12-08 17:43:47,892 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-08 17:43:48,139 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2018-12-08 17:43:48,675 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-08 17:43:48,910 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-08 17:43:49,197 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-08 17:43:49,608 WARN L180 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2018-12-08 17:43:50,207 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2018-12-08 17:43:50,404 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2018-12-08 17:43:50,579 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-08 17:43:50,712 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2018-12-08 17:43:50,852 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2018-12-08 17:43:51,048 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2018-12-08 17:43:51,335 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-12-08 17:43:51,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:51,349 INFO L93 Difference]: Finished difference Result 5188 states and 12863 transitions. [2018-12-08 17:43:51,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:43:51,349 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:51,352 INFO L225 Difference]: With dead ends: 5188 [2018-12-08 17:43:51,352 INFO L226 Difference]: Without dead ends: 5188 [2018-12-08 17:43:51,352 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:43:51,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5188 states. [2018-12-08 17:43:51,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5188 to 2454. [2018-12-08 17:43:51,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2454 states. [2018-12-08 17:43:51,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2454 states to 2454 states and 6368 transitions. [2018-12-08 17:43:51,373 INFO L78 Accepts]: Start accepts. Automaton has 2454 states and 6368 transitions. Word has length 96 [2018-12-08 17:43:51,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:51,374 INFO L480 AbstractCegarLoop]: Abstraction has 2454 states and 6368 transitions. [2018-12-08 17:43:51,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:51,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2454 states and 6368 transitions. [2018-12-08 17:43:51,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:51,375 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:51,375 INFO L402 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] [2018-12-08 17:43:51,375 INFO L423 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:51,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:51,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1469506358, now seen corresponding path program 28 times [2018-12-08 17:43:51,376 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:51,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:51,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:51,378 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:51,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:52,486 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2018-12-08 17:43:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:53,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:53,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:53,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:53,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:53,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:53,166 INFO L87 Difference]: Start difference. First operand 2454 states and 6368 transitions. Second operand 21 states. [2018-12-08 17:43:53,961 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:43:54,506 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:43:54,689 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2018-12-08 17:43:54,874 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-12-08 17:43:55,094 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2018-12-08 17:43:55,299 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2018-12-08 17:43:55,542 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2018-12-08 17:43:56,005 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-08 17:43:56,199 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-08 17:43:56,350 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:43:56,558 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-08 17:43:56,840 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-08 17:43:57,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:43:57,124 INFO L93 Difference]: Finished difference Result 3450 states and 8352 transitions. [2018-12-08 17:43:57,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:43:57,125 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:43:57,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:43:57,127 INFO L225 Difference]: With dead ends: 3450 [2018-12-08 17:43:57,127 INFO L226 Difference]: Without dead ends: 3450 [2018-12-08 17:43:57,127 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=444, Invalid=1278, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:43:57,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2018-12-08 17:43:57,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 2448. [2018-12-08 17:43:57,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2448 states. [2018-12-08 17:43:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 6353 transitions. [2018-12-08 17:43:57,147 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 6353 transitions. Word has length 96 [2018-12-08 17:43:57,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:43:57,147 INFO L480 AbstractCegarLoop]: Abstraction has 2448 states and 6353 transitions. [2018-12-08 17:43:57,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:43:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 6353 transitions. [2018-12-08 17:43:57,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:43:57,148 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:43:57,148 INFO L402 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] [2018-12-08 17:43:57,149 INFO L423 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:43:57,149 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:43:57,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1392549528, now seen corresponding path program 29 times [2018-12-08 17:43:57,149 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:43:57,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:43:57,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:57,152 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:43:57,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:43:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:43:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:43:58,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:43:58,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:43:58,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:43:58,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:43:58,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:43:58,113 INFO L87 Difference]: Start difference. First operand 2448 states and 6353 transitions. Second operand 21 states. [2018-12-08 17:43:58,943 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:43:59,242 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:43:59,438 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2018-12-08 17:43:59,640 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2018-12-08 17:43:59,861 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-08 17:44:00,062 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2018-12-08 17:44:00,285 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2018-12-08 17:44:00,756 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-08 17:44:00,974 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-08 17:44:01,127 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:44:01,341 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-08 17:44:01,631 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-08 17:44:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:44:01,914 INFO L93 Difference]: Finished difference Result 3668 states and 8805 transitions. [2018-12-08 17:44:01,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 17:44:01,915 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:44:01,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:44:01,917 INFO L225 Difference]: With dead ends: 3668 [2018-12-08 17:44:01,917 INFO L226 Difference]: Without dead ends: 3668 [2018-12-08 17:44:01,917 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=445, Invalid=1277, Unknown=0, NotChecked=0, Total=1722 [2018-12-08 17:44:01,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3668 states. [2018-12-08 17:44:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3668 to 2446. [2018-12-08 17:44:01,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2446 states. [2018-12-08 17:44:01,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 6348 transitions. [2018-12-08 17:44:01,936 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 6348 transitions. Word has length 96 [2018-12-08 17:44:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:44:01,936 INFO L480 AbstractCegarLoop]: Abstraction has 2446 states and 6348 transitions. [2018-12-08 17:44:01,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:44:01,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 6348 transitions. [2018-12-08 17:44:01,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:44:01,937 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:44:01,938 INFO L402 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] [2018-12-08 17:44:01,938 INFO L423 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:44:01,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:44:01,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1975423798, now seen corresponding path program 30 times [2018-12-08 17:44:01,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:44:01,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:44:01,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:01,941 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:44:01,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:44:02,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:44:02,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:44:02,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:44:02,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:44:02,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:44:02,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:44:02,832 INFO L87 Difference]: Start difference. First operand 2446 states and 6348 transitions. Second operand 21 states. [2018-12-08 17:44:03,606 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:44:03,872 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2018-12-08 17:44:04,049 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2018-12-08 17:44:04,230 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2018-12-08 17:44:04,470 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2018-12-08 17:44:04,706 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2018-12-08 17:44:04,913 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2018-12-08 17:44:05,154 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2018-12-08 17:44:05,641 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2018-12-08 17:44:05,809 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2018-12-08 17:44:05,966 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2018-12-08 17:44:06,092 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2018-12-08 17:44:06,446 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-12-08 17:44:06,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:44:06,694 INFO L93 Difference]: Finished difference Result 3402 states and 8279 transitions. [2018-12-08 17:44:06,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-08 17:44:06,695 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:44:06,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:44:06,697 INFO L225 Difference]: With dead ends: 3402 [2018-12-08 17:44:06,697 INFO L226 Difference]: Without dead ends: 3402 [2018-12-08 17:44:06,697 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=476, Invalid=1330, Unknown=0, NotChecked=0, Total=1806 [2018-12-08 17:44:06,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3402 states. [2018-12-08 17:44:06,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3402 to 2440. [2018-12-08 17:44:06,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2440 states. [2018-12-08 17:44:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2440 states to 2440 states and 6333 transitions. [2018-12-08 17:44:06,714 INFO L78 Accepts]: Start accepts. Automaton has 2440 states and 6333 transitions. Word has length 96 [2018-12-08 17:44:06,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:44:06,714 INFO L480 AbstractCegarLoop]: Abstraction has 2440 states and 6333 transitions. [2018-12-08 17:44:06,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:44:06,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2440 states and 6333 transitions. [2018-12-08 17:44:06,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:44:06,716 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:44:06,716 INFO L402 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] [2018-12-08 17:44:06,716 INFO L423 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:44:06,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:44:06,716 INFO L82 PathProgramCache]: Analyzing trace with hash -550203598, now seen corresponding path program 31 times [2018-12-08 17:44:06,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:44:06,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:44:06,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:06,719 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:44:06,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:44:07,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:44:07,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:44:07,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:44:07,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:44:07,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:44:07,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:44:07,582 INFO L87 Difference]: Start difference. First operand 2440 states and 6333 transitions. Second operand 21 states. [2018-12-08 17:44:08,281 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:44:08,436 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-12-08 17:44:08,609 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:44:08,819 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-08 17:44:09,029 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-12-08 17:44:09,250 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:44:09,482 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2018-12-08 17:44:09,827 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2018-12-08 17:44:10,088 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-12-08 17:44:10,284 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-12-08 17:44:10,504 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-08 17:44:10,960 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:44:11,169 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-08 17:44:11,341 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-08 17:44:11,555 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2018-12-08 17:44:11,701 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-12-08 17:44:11,885 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2018-12-08 17:44:12,069 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-12-08 17:44:12,269 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2018-12-08 17:44:12,537 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2018-12-08 17:44:12,820 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2018-12-08 17:44:12,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:44:12,836 INFO L93 Difference]: Finished difference Result 4083 states and 10082 transitions. [2018-12-08 17:44:12,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-12-08 17:44:12,836 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:44:12,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:44:12,839 INFO L225 Difference]: With dead ends: 4083 [2018-12-08 17:44:12,839 INFO L226 Difference]: Without dead ends: 4083 [2018-12-08 17:44:12,839 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=653, Invalid=1699, Unknown=0, NotChecked=0, Total=2352 [2018-12-08 17:44:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4083 states. [2018-12-08 17:44:12,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4083 to 1967. [2018-12-08 17:44:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1967 states. [2018-12-08 17:44:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 5046 transitions. [2018-12-08 17:44:12,856 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 5046 transitions. Word has length 96 [2018-12-08 17:44:12,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:44:12,856 INFO L480 AbstractCegarLoop]: Abstraction has 1967 states and 5046 transitions. [2018-12-08 17:44:12,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:44:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 5046 transitions. [2018-12-08 17:44:12,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:44:12,857 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:44:12,857 INFO L402 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] [2018-12-08 17:44:12,857 INFO L423 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:44:12,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:44:12,857 INFO L82 PathProgramCache]: Analyzing trace with hash -62223258, now seen corresponding path program 32 times [2018-12-08 17:44:12,857 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:44:12,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:44:12,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:12,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:44:12,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:44:13,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:44:13,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:44:13,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:44:13,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:44:13,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:44:13,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:44:13,815 INFO L87 Difference]: Start difference. First operand 1967 states and 5046 transitions. Second operand 21 states. [2018-12-08 17:44:14,446 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2018-12-08 17:44:14,623 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:44:14,809 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-12-08 17:44:14,983 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:44:15,181 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2018-12-08 17:44:15,408 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:44:15,836 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-12-08 17:44:16,051 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:44:16,275 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-08 17:44:16,486 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-08 17:44:16,727 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-12-08 17:44:17,220 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:44:17,423 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2018-12-08 17:44:17,597 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-08 17:44:17,801 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2018-12-08 17:44:17,953 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-12-08 17:44:18,117 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2018-12-08 17:44:18,384 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-12-08 17:44:18,582 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-12-08 17:44:18,777 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2018-12-08 17:44:19,188 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-12-08 17:44:19,343 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-12-08 17:44:19,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:44:19,364 INFO L93 Difference]: Finished difference Result 4336 states and 10537 transitions. [2018-12-08 17:44:19,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-12-08 17:44:19,364 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:44:19,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:44:19,367 INFO L225 Difference]: With dead ends: 4336 [2018-12-08 17:44:19,367 INFO L226 Difference]: Without dead ends: 4336 [2018-12-08 17:44:19,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=667, Invalid=1783, Unknown=0, NotChecked=0, Total=2450 [2018-12-08 17:44:19,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4336 states. [2018-12-08 17:44:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4336 to 1956. [2018-12-08 17:44:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1956 states. [2018-12-08 17:44:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 5013 transitions. [2018-12-08 17:44:19,385 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 5013 transitions. Word has length 96 [2018-12-08 17:44:19,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:44:19,385 INFO L480 AbstractCegarLoop]: Abstraction has 1956 states and 5013 transitions. [2018-12-08 17:44:19,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:44:19,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 5013 transitions. [2018-12-08 17:44:19,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-08 17:44:19,387 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:44:19,387 INFO L402 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] [2018-12-08 17:44:19,387 INFO L423 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:44:19,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:44:19,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1067934966, now seen corresponding path program 33 times [2018-12-08 17:44:19,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:44:19,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:44:19,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:19,392 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:44:19,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:44:20,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:44:20,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:44:20,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2018-12-08 17:44:20,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 17:44:20,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 17:44:20,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2018-12-08 17:44:20,253 INFO L87 Difference]: Start difference. First operand 1956 states and 5013 transitions. Second operand 21 states. [2018-12-08 17:44:21,008 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2018-12-08 17:44:21,172 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2018-12-08 17:44:21,349 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2018-12-08 17:44:21,790 WARN L180 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2018-12-08 17:44:21,971 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2018-12-08 17:44:22,198 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2018-12-08 17:44:22,435 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-08 17:44:22,637 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-12-08 17:44:22,865 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-12-08 17:44:23,400 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2018-12-08 17:44:23,606 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2018-12-08 17:44:23,753 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2018-12-08 17:44:24,150 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2018-12-08 17:44:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:44:24,433 INFO L93 Difference]: Finished difference Result 2857 states and 6970 transitions. [2018-12-08 17:44:24,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-08 17:44:24,433 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2018-12-08 17:44:24,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:44:24,435 INFO L225 Difference]: With dead ends: 2857 [2018-12-08 17:44:24,435 INFO L226 Difference]: Without dead ends: 2857 [2018-12-08 17:44:24,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=488, Invalid=1318, Unknown=0, NotChecked=0, Total=1806 [2018-12-08 17:44:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2018-12-08 17:44:24,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 1778. [2018-12-08 17:44:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2018-12-08 17:44:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 4648 transitions. [2018-12-08 17:44:24,448 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 4648 transitions. Word has length 96 [2018-12-08 17:44:24,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:44:24,448 INFO L480 AbstractCegarLoop]: Abstraction has 1778 states and 4648 transitions. [2018-12-08 17:44:24,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 17:44:24,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 4648 transitions. [2018-12-08 17:44:24,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:44:24,449 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:44:24,449 INFO L402 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] [2018-12-08 17:44:24,450 INFO L423 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:44:24,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:44:24,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1695940575, now seen corresponding path program 1 times [2018-12-08 17:44:24,450 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:44:24,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:44:24,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:24,453 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:44:24,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:44:25,105 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2018-12-08 17:44:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:44:26,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:44:26,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2018-12-08 17:44:26,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-08 17:44:26,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-08 17:44:26,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=972, Unknown=0, NotChecked=0, Total=1056 [2018-12-08 17:44:26,642 INFO L87 Difference]: Start difference. First operand 1778 states and 4648 transitions. Second operand 33 states. [2018-12-08 17:44:27,743 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:44:28,022 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-08 17:44:28,268 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-08 17:44:28,494 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-12-08 17:44:28,753 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2018-12-08 17:44:29,030 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-12-08 17:44:31,044 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2018-12-08 17:44:31,458 WARN L180 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-08 17:44:31,621 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-12-08 17:44:31,869 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2018-12-08 17:44:32,169 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2018-12-08 17:44:32,461 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2018-12-08 17:44:32,767 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2018-12-08 17:44:33,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:44:33,963 INFO L93 Difference]: Finished difference Result 2141 states and 5467 transitions. [2018-12-08 17:44:33,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-08 17:44:33,963 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 102 [2018-12-08 17:44:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:44:33,964 INFO L225 Difference]: With dead ends: 2141 [2018-12-08 17:44:33,964 INFO L226 Difference]: Without dead ends: 1962 [2018-12-08 17:44:33,965 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 866 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=720, Invalid=3836, Unknown=0, NotChecked=0, Total=4556 [2018-12-08 17:44:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2018-12-08 17:44:33,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1778. [2018-12-08 17:44:33,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2018-12-08 17:44:33,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 4636 transitions. [2018-12-08 17:44:33,976 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 4636 transitions. Word has length 102 [2018-12-08 17:44:33,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:44:33,976 INFO L480 AbstractCegarLoop]: Abstraction has 1778 states and 4636 transitions. [2018-12-08 17:44:33,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-08 17:44:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 4636 transitions. [2018-12-08 17:44:33,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:44:33,977 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:44:33,978 INFO L402 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] [2018-12-08 17:44:33,978 INFO L423 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:44:33,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:44:33,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1267601473, now seen corresponding path program 2 times [2018-12-08 17:44:33,978 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:44:33,978 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:44:33,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:33,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:44:33,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:44:35,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:44:35,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:44:35,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2018-12-08 17:44:35,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-08 17:44:35,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-08 17:44:35,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2018-12-08 17:44:35,466 INFO L87 Difference]: Start difference. First operand 1778 states and 4636 transitions. Second operand 27 states. [2018-12-08 17:44:36,345 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:44:36,595 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-08 17:44:36,862 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2018-12-08 17:44:37,172 WARN L180 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2018-12-08 17:44:37,477 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2018-12-08 17:44:38,204 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-12-08 17:44:38,975 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2018-12-08 17:44:39,241 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2018-12-08 17:44:39,602 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2018-12-08 17:44:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:44:41,088 INFO L93 Difference]: Finished difference Result 2648 states and 6761 transitions. [2018-12-08 17:44:41,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-12-08 17:44:41,088 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 102 [2018-12-08 17:44:41,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:44:41,090 INFO L225 Difference]: With dead ends: 2648 [2018-12-08 17:44:41,090 INFO L226 Difference]: Without dead ends: 2508 [2018-12-08 17:44:41,090 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=611, Invalid=2929, Unknown=0, NotChecked=0, Total=3540 [2018-12-08 17:44:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2018-12-08 17:44:41,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 1822. [2018-12-08 17:44:41,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1822 states. [2018-12-08 17:44:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1822 states to 1822 states and 4753 transitions. [2018-12-08 17:44:41,104 INFO L78 Accepts]: Start accepts. Automaton has 1822 states and 4753 transitions. Word has length 102 [2018-12-08 17:44:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:44:41,104 INFO L480 AbstractCegarLoop]: Abstraction has 1822 states and 4753 transitions. [2018-12-08 17:44:41,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-08 17:44:41,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1822 states and 4753 transitions. [2018-12-08 17:44:41,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:44:41,105 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:44:41,105 INFO L402 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] [2018-12-08 17:44:41,105 INFO L423 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:44:41,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:44:41,105 INFO L82 PathProgramCache]: Analyzing trace with hash 702528677, now seen corresponding path program 3 times [2018-12-08 17:44:41,106 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:44:41,106 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:44:41,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:41,109 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:44:41,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:44:43,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:44:43,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:44:43,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2018-12-08 17:44:43,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-12-08 17:44:43,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-12-08 17:44:43,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1034, Unknown=0, NotChecked=0, Total=1122 [2018-12-08 17:44:43,981 INFO L87 Difference]: Start difference. First operand 1822 states and 4753 transitions. Second operand 34 states. [2018-12-08 17:44:45,244 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:44:45,601 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-08 17:44:46,098 WARN L180 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-08 17:44:46,338 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2018-12-08 17:44:46,592 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2018-12-08 17:44:46,910 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-12-08 17:44:47,278 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2018-12-08 17:44:48,251 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2018-12-08 17:44:48,523 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2018-12-08 17:44:49,560 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2018-12-08 17:44:49,905 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2018-12-08 17:44:50,223 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2018-12-08 17:44:51,321 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 36 [2018-12-08 17:44:51,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:44:51,903 INFO L93 Difference]: Finished difference Result 2315 states and 5965 transitions. [2018-12-08 17:44:51,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-08 17:44:51,904 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 102 [2018-12-08 17:44:51,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:44:51,905 INFO L225 Difference]: With dead ends: 2315 [2018-12-08 17:44:51,905 INFO L226 Difference]: Without dead ends: 2188 [2018-12-08 17:44:51,906 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 878 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=728, Invalid=3964, Unknown=0, NotChecked=0, Total=4692 [2018-12-08 17:44:51,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2018-12-08 17:44:51,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 1910. [2018-12-08 17:44:51,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1910 states. [2018-12-08 17:44:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 4987 transitions. [2018-12-08 17:44:51,920 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 4987 transitions. Word has length 102 [2018-12-08 17:44:51,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:44:51,920 INFO L480 AbstractCegarLoop]: Abstraction has 1910 states and 4987 transitions. [2018-12-08 17:44:51,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-12-08 17:44:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 4987 transitions. [2018-12-08 17:44:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:44:51,922 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:44:51,922 INFO L402 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] [2018-12-08 17:44:51,922 INFO L423 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:44:51,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:44:51,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1291018341, now seen corresponding path program 4 times [2018-12-08 17:44:51,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:44:51,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:44:51,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:51,925 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:44:51,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:44:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:44:53,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:44:53,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:44:53,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2018-12-08 17:44:53,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-08 17:44:53,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-08 17:44:53,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2018-12-08 17:44:53,999 INFO L87 Difference]: Start difference. First operand 1910 states and 4987 transitions. Second operand 33 states. [2018-12-08 17:44:54,958 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2018-12-08 17:44:55,150 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-12-08 17:44:55,421 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-12-08 17:44:55,726 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-12-08 17:44:55,956 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2018-12-08 17:44:56,225 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-12-08 17:44:56,496 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2018-12-08 17:44:57,549 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2018-12-08 17:44:57,962 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2018-12-08 17:44:58,316 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2018-12-08 17:44:58,635 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2018-12-08 17:44:59,273 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2018-12-08 17:44:59,695 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2018-12-08 17:45:00,659 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2018-12-08 17:45:02,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:45:02,320 INFO L93 Difference]: Finished difference Result 2447 states and 6262 transitions. [2018-12-08 17:45:02,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-12-08 17:45:02,320 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 102 [2018-12-08 17:45:02,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:45:02,322 INFO L225 Difference]: With dead ends: 2447 [2018-12-08 17:45:02,322 INFO L226 Difference]: Without dead ends: 2183 [2018-12-08 17:45:02,322 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=847, Invalid=4409, Unknown=0, NotChecked=0, Total=5256 [2018-12-08 17:45:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2018-12-08 17:45:02,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 1954. [2018-12-08 17:45:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-12-08 17:45:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 5064 transitions. [2018-12-08 17:45:02,335 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 5064 transitions. Word has length 102 [2018-12-08 17:45:02,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:45:02,335 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 5064 transitions. [2018-12-08 17:45:02,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-08 17:45:02,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 5064 transitions. [2018-12-08 17:45:02,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:45:02,336 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:45:02,336 INFO L402 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] [2018-12-08 17:45:02,337 INFO L423 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:45:02,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:45:02,337 INFO L82 PathProgramCache]: Analyzing trace with hash -2031784151, now seen corresponding path program 5 times [2018-12-08 17:45:02,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:45:02,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:45:02,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:02,340 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:45:02,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:45:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:45:03,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:45:03,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2018-12-08 17:45:03,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-08 17:45:03,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-08 17:45:03,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=640, Unknown=0, NotChecked=0, Total=702 [2018-12-08 17:45:03,780 INFO L87 Difference]: Start difference. First operand 1954 states and 5064 transitions. Second operand 27 states. [2018-12-08 17:45:04,677 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-12-08 17:45:04,912 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2018-12-08 17:45:05,165 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2018-12-08 17:45:05,398 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2018-12-08 17:45:05,707 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2018-12-08 17:45:06,404 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2018-12-08 17:45:06,661 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2018-12-08 17:45:07,315 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2018-12-08 17:45:07,986 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2018-12-08 17:45:08,158 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2018-12-08 17:45:08,415 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-12-08 17:45:08,896 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2018-12-08 17:45:09,153 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-12-08 17:45:09,396 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2018-12-08 17:45:10,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:45:10,526 INFO L93 Difference]: Finished difference Result 2635 states and 6663 transitions. [2018-12-08 17:45:10,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-12-08 17:45:10,526 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 102 [2018-12-08 17:45:10,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:45:10,528 INFO L225 Difference]: With dead ends: 2635 [2018-12-08 17:45:10,528 INFO L226 Difference]: Without dead ends: 2214 [2018-12-08 17:45:10,528 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=712, Invalid=3448, Unknown=0, NotChecked=0, Total=4160 [2018-12-08 17:45:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2018-12-08 17:45:10,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 1634. [2018-12-08 17:45:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1634 states. [2018-12-08 17:45:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 4228 transitions. [2018-12-08 17:45:10,540 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 4228 transitions. Word has length 102 [2018-12-08 17:45:10,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:45:10,540 INFO L480 AbstractCegarLoop]: Abstraction has 1634 states and 4228 transitions. [2018-12-08 17:45:10,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-08 17:45:10,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 4228 transitions. [2018-12-08 17:45:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:45:10,541 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:45:10,542 INFO L402 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] [2018-12-08 17:45:10,542 INFO L423 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:45:10,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:45:10,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1203559135, now seen corresponding path program 6 times [2018-12-08 17:45:10,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:45:10,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:45:10,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:10,545 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:45:10,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:45:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:45:12,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:45:12,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2018-12-08 17:45:12,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-12-08 17:45:12,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-12-08 17:45:12,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2018-12-08 17:45:12,740 INFO L87 Difference]: Start difference. First operand 1634 states and 4228 transitions. Second operand 32 states. [2018-12-08 17:45:13,744 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:45:13,979 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-08 17:45:14,226 WARN L180 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-08 17:45:14,456 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2018-12-08 17:45:14,726 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2018-12-08 17:45:15,002 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2018-12-08 17:45:15,327 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-12-08 17:45:16,725 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2018-12-08 17:45:17,249 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2018-12-08 17:45:17,691 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2018-12-08 17:45:18,146 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2018-12-08 17:45:18,372 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2018-12-08 17:45:18,570 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2018-12-08 17:45:19,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:45:19,766 INFO L93 Difference]: Finished difference Result 1939 states and 4894 transitions. [2018-12-08 17:45:19,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-08 17:45:19,766 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 102 [2018-12-08 17:45:19,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:45:19,767 INFO L225 Difference]: With dead ends: 1939 [2018-12-08 17:45:19,768 INFO L226 Difference]: Without dead ends: 1760 [2018-12-08 17:45:19,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=719, Invalid=3703, Unknown=0, NotChecked=0, Total=4422 [2018-12-08 17:45:19,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2018-12-08 17:45:19,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1640. [2018-12-08 17:45:19,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1640 states. [2018-12-08 17:45:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 4237 transitions. [2018-12-08 17:45:19,779 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 4237 transitions. Word has length 102 [2018-12-08 17:45:19,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:45:19,780 INFO L480 AbstractCegarLoop]: Abstraction has 1640 states and 4237 transitions. [2018-12-08 17:45:19,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-12-08 17:45:19,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 4237 transitions. [2018-12-08 17:45:19,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:45:19,781 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:45:19,781 INFO L402 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] [2018-12-08 17:45:19,781 INFO L423 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:45:19,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:45:19,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1791550753, now seen corresponding path program 7 times [2018-12-08 17:45:19,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:45:19,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:45:19,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:19,784 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:45:19,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:45:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:45:21,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:45:21,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2018-12-08 17:45:21,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-12-08 17:45:21,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-12-08 17:45:21,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=911, Unknown=0, NotChecked=0, Total=992 [2018-12-08 17:45:21,900 INFO L87 Difference]: Start difference. First operand 1640 states and 4237 transitions. Second operand 32 states. [2018-12-08 17:45:22,740 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2018-12-08 17:45:22,904 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2018-12-08 17:45:23,160 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2018-12-08 17:45:23,430 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2018-12-08 17:45:23,656 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2018-12-08 17:45:23,915 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2018-12-08 17:45:24,188 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2018-12-08 17:45:25,340 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2018-12-08 17:45:25,661 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2018-12-08 17:45:25,818 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2018-12-08 17:45:26,371 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2018-12-08 17:45:26,585 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2018-12-08 17:45:26,958 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2018-12-08 17:45:27,320 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2018-12-08 17:45:27,622 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2018-12-08 17:45:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:45:28,558 INFO L93 Difference]: Finished difference Result 1895 states and 4796 transitions. [2018-12-08 17:45:28,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-12-08 17:45:28,558 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 102 [2018-12-08 17:45:28,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:45:28,560 INFO L225 Difference]: With dead ends: 1895 [2018-12-08 17:45:28,560 INFO L226 Difference]: Without dead ends: 1755 [2018-12-08 17:45:28,561 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=737, Invalid=3685, Unknown=0, NotChecked=0, Total=4422 [2018-12-08 17:45:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2018-12-08 17:45:28,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1642. [2018-12-08 17:45:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2018-12-08 17:45:28,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 4240 transitions. [2018-12-08 17:45:28,573 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 4240 transitions. Word has length 102 [2018-12-08 17:45:28,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:45:28,573 INFO L480 AbstractCegarLoop]: Abstraction has 1642 states and 4240 transitions. [2018-12-08 17:45:28,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-12-08 17:45:28,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 4240 transitions. [2018-12-08 17:45:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:45:28,575 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:45:28,575 INFO L402 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] [2018-12-08 17:45:28,575 INFO L423 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:45:28,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:45:28,575 INFO L82 PathProgramCache]: Analyzing trace with hash 503358407, now seen corresponding path program 8 times [2018-12-08 17:45:28,575 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:45:28,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:45:28,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:28,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:45:28,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:45:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:45:30,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:45:30,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2018-12-08 17:45:30,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2018-12-08 17:45:30,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2018-12-08 17:45:30,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1036, Unknown=0, NotChecked=0, Total=1122 [2018-12-08 17:45:30,755 INFO L87 Difference]: Start difference. First operand 1642 states and 4240 transitions. Second operand 34 states. [2018-12-08 17:45:31,673 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2018-12-08 17:45:31,856 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-12-08 17:45:32,107 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-12-08 17:45:32,368 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2018-12-08 17:45:32,601 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2018-12-08 17:45:32,875 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2018-12-08 17:45:33,165 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2018-12-08 17:45:34,359 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2018-12-08 17:45:34,708 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2018-12-08 17:45:35,045 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2018-12-08 17:45:35,399 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2018-12-08 17:45:35,845 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2018-12-08 17:45:36,120 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2018-12-08 17:45:36,711 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2018-12-08 17:45:37,119 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2018-12-08 17:45:37,361 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2018-12-08 17:45:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:45:38,717 INFO L93 Difference]: Finished difference Result 1972 states and 4919 transitions. [2018-12-08 17:45:38,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-12-08 17:45:38,717 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 102 [2018-12-08 17:45:38,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:45:38,719 INFO L225 Difference]: With dead ends: 1972 [2018-12-08 17:45:38,719 INFO L226 Difference]: Without dead ends: 1845 [2018-12-08 17:45:38,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 965 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=849, Invalid=4263, Unknown=0, NotChecked=0, Total=5112 [2018-12-08 17:45:38,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2018-12-08 17:45:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1646. [2018-12-08 17:45:38,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-12-08 17:45:38,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 4246 transitions. [2018-12-08 17:45:38,732 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 4246 transitions. Word has length 102 [2018-12-08 17:45:38,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:45:38,733 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 4246 transitions. [2018-12-08 17:45:38,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2018-12-08 17:45:38,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 4246 transitions. [2018-12-08 17:45:38,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:45:38,734 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:45:38,734 INFO L402 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] [2018-12-08 17:45:38,734 INFO L423 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:45:38,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:45:38,735 INFO L82 PathProgramCache]: Analyzing trace with hash 453824011, now seen corresponding path program 1 times [2018-12-08 17:45:38,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:45:38,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:45:38,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:38,739 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:45:38,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:45:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:45:39,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:45:39,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-12-08 17:45:39,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-08 17:45:39,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-08 17:45:39,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2018-12-08 17:45:39,393 INFO L87 Difference]: Start difference. First operand 1646 states and 4246 transitions. Second operand 20 states. [2018-12-08 17:45:40,627 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2018-12-08 17:45:41,062 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2018-12-08 17:45:41,330 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-12-08 17:45:41,556 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2018-12-08 17:45:41,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:45:41,845 INFO L93 Difference]: Finished difference Result 2413 states and 6129 transitions. [2018-12-08 17:45:41,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-08 17:45:41,845 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 102 [2018-12-08 17:45:41,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:45:41,847 INFO L225 Difference]: With dead ends: 2413 [2018-12-08 17:45:41,847 INFO L226 Difference]: Without dead ends: 2378 [2018-12-08 17:45:41,847 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=382, Invalid=878, Unknown=0, NotChecked=0, Total=1260 [2018-12-08 17:45:41,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2378 states. [2018-12-08 17:45:41,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 1914. [2018-12-08 17:45:41,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-12-08 17:45:41,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 4893 transitions. [2018-12-08 17:45:41,862 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 4893 transitions. Word has length 102 [2018-12-08 17:45:41,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:45:41,862 INFO L480 AbstractCegarLoop]: Abstraction has 1914 states and 4893 transitions. [2018-12-08 17:45:41,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-08 17:45:41,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 4893 transitions. [2018-12-08 17:45:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-12-08 17:45:41,864 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:45:41,864 INFO L402 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] [2018-12-08 17:45:41,864 INFO L423 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:45:41,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:45:41,864 INFO L82 PathProgramCache]: Analyzing trace with hash -514816953, now seen corresponding path program 9 times [2018-12-08 17:45:41,864 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:45:41,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:45:41,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:41,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:45:41,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:45:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:45:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:45:41,919 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 17:45:41,967 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 17:45:41,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:45:41 BasicIcfg [2018-12-08 17:45:41,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:45:41,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:45:41,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:45:41,968 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:45:41,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:41:33" (3/4) ... [2018-12-08 17:45:41,970 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 17:45:42,016 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c9a0f8b7-964c-40de-ba28-ad3f82d2a8be/bin-2019/uautomizer/witness.graphml [2018-12-08 17:45:42,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:45:42,017 INFO L168 Benchmark]: Toolchain (without parser) took 249471.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 950.6 MB in the beginning and 778.7 MB in the end (delta: 171.9 MB). Peak memory consumption was 285.2 MB. Max. memory is 11.5 GB. [2018-12-08 17:45:42,017 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:45:42,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 950.6 MB in the beginning and 997.1 MB in the end (delta: -46.5 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. [2018-12-08 17:45:42,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.47 ms. Allocated memory is still 1.1 GB. Free memory was 997.1 MB in the beginning and 993.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:45:42,017 INFO L168 Benchmark]: Boogie Preprocessor took 22.65 ms. Allocated memory is still 1.1 GB. Free memory is still 993.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:45:42,017 INFO L168 Benchmark]: RCFGBuilder took 414.60 ms. Allocated memory is still 1.1 GB. Free memory was 993.8 MB in the beginning and 946.2 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-08 17:45:42,017 INFO L168 Benchmark]: TraceAbstraction took 248311.06 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -5.8 MB). Free memory was 946.2 MB in the beginning and 798.3 MB in the end (delta: 147.9 MB). Peak memory consumption was 142.2 MB. Max. memory is 11.5 GB. [2018-12-08 17:45:42,018 INFO L168 Benchmark]: Witness Printer took 48.53 ms. Allocated memory is still 1.1 GB. Free memory was 798.3 MB in the beginning and 778.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-12-08 17:45:42,018 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 635.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 950.6 MB in the beginning and 997.1 MB in the end (delta: -46.5 MB). Peak memory consumption was 87.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.47 ms. Allocated memory is still 1.1 GB. Free memory was 997.1 MB in the beginning and 993.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.65 ms. Allocated memory is still 1.1 GB. Free memory is still 993.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 414.60 ms. Allocated memory is still 1.1 GB. Free memory was 993.8 MB in the beginning and 946.2 MB in the end (delta: 47.6 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 248311.06 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -5.8 MB). Free memory was 946.2 MB in the beginning and 798.3 MB in the end (delta: 147.9 MB). Peak memory consumption was 142.2 MB. Max. memory is 11.5 GB. * Witness Printer took 48.53 ms. Allocated memory is still 1.1 GB. Free memory was 798.3 MB in the beginning and 778.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3772]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L3774] -1 pthread_t t1,t2; VAL [t1={70:0}, t2={61:0}] [L3791] -1 struct device *my_dev; VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3839] -1 return 0; VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3847] -1 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3848] COND TRUE -1 ret==0 VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3849] -1 int probe_ret; VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3850] -1 struct my_data data; VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3809] -1 data->shared.a = 0 VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3810] -1 data->shared.b = 0 VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3811] -1 data->shared.a VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3772] COND FALSE -1 !(!expression) VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3812] -1 data->shared.b VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3772] COND FALSE -1 !(!expression) VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3814] -1 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3815] COND FALSE -1 !(\read(res)) VAL [my_dev={0:0}, t1={70:0}, t2={61:0}] [L3819] -1 my_dev = &data->dev VAL [my_dev={64:40}, t1={70:0}, t2={61:0}] [L3822] FCALL, FORK -1 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3794] 0 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3795] 0 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3795] 0 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3799] 0 data->shared.a = 1 VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3800] 0 data->shared.b VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3823] FCALL, FORK -1 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3824] -1 return 0; VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3851] -1 probe_ret = my_drv_probe(&data) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3852] COND TRUE -1 probe_ret==0 VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3832] -1 void *status; VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3794] 1 struct my_data *data; VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3795] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3833] -1 \read(t1) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3795] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3799] 1 data->shared.a = 1 VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3800] EXPR 1 data->shared.b VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3800] 1 data->shared.b = data->shared.b + 1 VAL [__mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3802] 1 return 0; VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3800] 0 data->shared.b = data->shared.b + 1 VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, data->shared.b=0, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3802] 0 return 0; VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3833] FCALL, JOIN 0 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3834] -1 \read(t2) VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3834] FCALL, JOIN 1 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3854] -1 data.shared.a VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3772] COND FALSE -1 !(!expression) VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3855] -1 data.shared.b VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3772] COND TRUE -1 !expression VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] [L3772] -1 __VERIFIER_error() VAL [\result={0:0}, __mptr={64:40}, arg={0:0}, arg={0:0}, data={64:0}, my_dev={64:40}, t1={70:0}, t2={61:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 148 locations, 6 error locations. UNSAFE Result, 248.2s OverallTime, 48 OverallIterations, 1 TraceHistogramMax, 198.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8376 SDtfs, 38265 SDslu, 70695 SDs, 0 SdLazy, 41702 SolverSat, 4504 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2165 GetRequests, 117 SyntacticMatches, 67 SemanticMatches, 1981 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15448 ImplicationChecksByTransitivity, 187.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5125occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 47 MinimizatonAttempts, 62527 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 46.9s InterpolantComputationTime, 4439 NumberOfCodeBlocks, 4439 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 4290 ConstructedInterpolants, 0 QuantifiedInterpolants, 6798773 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 47 InterpolantComputations, 47 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...