./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc_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_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/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 a697edfe042240cd4f596c03e6214ca7451405ac .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:14:13,249 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 09:14:13,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 09:14:13,256 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 09:14:13,256 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 09:14:13,256 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 09:14:13,257 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 09:14:13,258 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 09:14:13,259 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 09:14:13,259 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 09:14:13,259 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 09:14:13,260 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 09:14:13,260 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 09:14:13,260 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 09:14:13,261 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 09:14:13,261 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 09:14:13,262 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 09:14:13,263 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 09:14:13,263 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 09:14:13,264 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 09:14:13,265 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 09:14:13,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 09:14:13,266 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 09:14:13,267 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 09:14:13,267 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 09:14:13,267 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 09:14:13,268 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 09:14:13,268 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 09:14:13,268 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 09:14:13,269 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 09:14:13,269 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 09:14:13,269 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 09:14:13,270 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 09:14:13,270 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 09:14:13,270 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 09:14:13,271 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 09:14:13,271 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 09:14:13,278 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 09:14:13,278 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 09:14:13,279 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 09:14:13,279 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 09:14:13,279 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 09:14:13,279 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 09:14:13,279 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 09:14:13,279 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 09:14:13,279 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 09:14:13,279 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 09:14:13,279 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 09:14:13,280 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 09:14:13,280 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 09:14:13,281 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 09:14:13,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 09:14:13,281 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 09:14:13,281 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 09:14:13,281 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 09:14:13,281 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 09:14:13,281 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 09:14:13,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 09:14:13,281 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_3f9d0dee-687f-41f6-80c7-12bb049788dd/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 -> a697edfe042240cd4f596c03e6214ca7451405ac [2018-12-08 09:14:13,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 09:14:13,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 09:14:13,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 09:14:13,311 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 09:14:13,311 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 09:14:13,311 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc_false-unreach-call.i [2018-12-08 09:14:13,354 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/data/91ae5556a/3a9bb9706403442ea70b76515bf726dc/FLAG2b0c13ae5 [2018-12-08 09:14:13,691 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 09:14:13,692 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/sv-benchmarks/c/pthread-wmm/safe029_rmo.oepc_false-unreach-call.i [2018-12-08 09:14:13,699 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/data/91ae5556a/3a9bb9706403442ea70b76515bf726dc/FLAG2b0c13ae5 [2018-12-08 09:14:13,707 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/data/91ae5556a/3a9bb9706403442ea70b76515bf726dc [2018-12-08 09:14:13,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 09:14:13,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 09:14:13,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 09:14:13,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 09:14:13,712 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 09:14:13,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:14:13" (1/1) ... [2018-12-08 09:14:13,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab2707f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:13, skipping insertion in model container [2018-12-08 09:14:13,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:14:13" (1/1) ... [2018-12-08 09:14:13,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 09:14:13,739 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 09:14:13,914 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:14:13,922 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 09:14:14,006 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:14:14,056 INFO L195 MainTranslator]: Completed translation [2018-12-08 09:14:14,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14 WrapperNode [2018-12-08 09:14:14,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 09:14:14,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 09:14:14,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 09:14:14,057 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 09:14:14,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 09:14:14,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 09:14:14,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 09:14:14,105 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 09:14:14,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... [2018-12-08 09:14:14,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 09:14:14,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 09:14:14,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 09:14:14,125 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 09:14:14,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/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 09:14:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 09:14:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 09:14:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-08 09:14:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 09:14:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-08 09:14:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-08 09:14:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-08 09:14:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-08 09:14:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-08 09:14:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 09:14:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 09:14:14,157 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 09:14:14,426 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 09:14:14,426 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 09:14:14,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:14:14 BoogieIcfgContainer [2018-12-08 09:14:14,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 09:14:14,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 09:14:14,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 09:14:14,429 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 09:14:14,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:14:13" (1/3) ... [2018-12-08 09:14:14,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b19d554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:14:14, skipping insertion in model container [2018-12-08 09:14:14,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:14:14" (2/3) ... [2018-12-08 09:14:14,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b19d554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:14:14, skipping insertion in model container [2018-12-08 09:14:14,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:14:14" (3/3) ... [2018-12-08 09:14:14,431 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_rmo.oepc_false-unreach-call.i [2018-12-08 09:14:14,452 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,453 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,454 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,455 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,456 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,457 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,458 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,459 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet16.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 09:14:14,463 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 09:14:14,463 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 09:14:14,468 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-08 09:14:14,477 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-08 09:14:14,491 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 09:14:14,491 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 09:14:14,491 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 09:14:14,491 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 09:14:14,491 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 09:14:14,492 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 09:14:14,492 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 09:14:14,492 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 09:14:14,492 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 09:14:14,498 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 140places, 178 transitions [2018-12-08 09:14:15,471 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 25102 states. [2018-12-08 09:14:15,473 INFO L276 IsEmpty]: Start isEmpty. Operand 25102 states. [2018-12-08 09:14:15,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 09:14:15,477 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:15,478 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] [2018-12-08 09:14:15,479 INFO L423 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:15,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:15,483 INFO L82 PathProgramCache]: Analyzing trace with hash 2024635459, now seen corresponding path program 1 times [2018-12-08 09:14:15,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:15,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:15,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:15,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:15,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:15,631 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 09:14:15,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:15,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:14:15,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 09:14:15,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:14:15,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:14:15,644 INFO L87 Difference]: Start difference. First operand 25102 states. Second operand 4 states. [2018-12-08 09:14:16,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:16,027 INFO L93 Difference]: Finished difference Result 45394 states and 177648 transitions. [2018-12-08 09:14:16,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 09:14:16,028 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-12-08 09:14:16,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:16,176 INFO L225 Difference]: With dead ends: 45394 [2018-12-08 09:14:16,177 INFO L226 Difference]: Without dead ends: 40634 [2018-12-08 09:14:16,178 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:14:16,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40634 states. [2018-12-08 09:14:16,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40634 to 23668. [2018-12-08 09:14:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23668 states. [2018-12-08 09:14:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23668 states to 23668 states and 92565 transitions. [2018-12-08 09:14:16,878 INFO L78 Accepts]: Start accepts. Automaton has 23668 states and 92565 transitions. Word has length 31 [2018-12-08 09:14:16,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:16,879 INFO L480 AbstractCegarLoop]: Abstraction has 23668 states and 92565 transitions. [2018-12-08 09:14:16,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 09:14:16,879 INFO L276 IsEmpty]: Start isEmpty. Operand 23668 states and 92565 transitions. [2018-12-08 09:14:16,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-08 09:14:16,882 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:16,882 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] [2018-12-08 09:14:16,882 INFO L423 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:16,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:16,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1263924681, now seen corresponding path program 1 times [2018-12-08 09:14:16,882 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:16,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:16,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:16,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:16,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:16,935 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 09:14:16,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:16,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 09:14:16,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 09:14:16,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 09:14:16,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:14:16,936 INFO L87 Difference]: Start difference. First operand 23668 states and 92565 transitions. Second operand 5 states. [2018-12-08 09:14:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:17,553 INFO L93 Difference]: Finished difference Result 64836 states and 241395 transitions. [2018-12-08 09:14:17,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 09:14:17,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-12-08 09:14:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:17,705 INFO L225 Difference]: With dead ends: 64836 [2018-12-08 09:14:17,705 INFO L226 Difference]: Without dead ends: 64676 [2018-12-08 09:14:17,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:14:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64676 states. [2018-12-08 09:14:18,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64676 to 37148. [2018-12-08 09:14:18,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37148 states. [2018-12-08 09:14:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37148 states to 37148 states and 138310 transitions. [2018-12-08 09:14:18,471 INFO L78 Accepts]: Start accepts. Automaton has 37148 states and 138310 transitions. Word has length 42 [2018-12-08 09:14:18,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:18,472 INFO L480 AbstractCegarLoop]: Abstraction has 37148 states and 138310 transitions. [2018-12-08 09:14:18,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 09:14:18,472 INFO L276 IsEmpty]: Start isEmpty. Operand 37148 states and 138310 transitions. [2018-12-08 09:14:18,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-12-08 09:14:18,474 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:18,475 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] [2018-12-08 09:14:18,475 INFO L423 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:18,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:18,475 INFO L82 PathProgramCache]: Analyzing trace with hash 555727520, now seen corresponding path program 1 times [2018-12-08 09:14:18,475 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:18,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:18,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:18,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:18,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:18,516 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 09:14:18,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:18,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:14:18,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 09:14:18,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:14:18,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:14:18,516 INFO L87 Difference]: Start difference. First operand 37148 states and 138310 transitions. Second operand 4 states. [2018-12-08 09:14:18,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:18,564 INFO L93 Difference]: Finished difference Result 12370 states and 41203 transitions. [2018-12-08 09:14:18,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:14:18,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-12-08 09:14:18,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:18,579 INFO L225 Difference]: With dead ends: 12370 [2018-12-08 09:14:18,579 INFO L226 Difference]: Without dead ends: 11849 [2018-12-08 09:14:18,579 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:14:18,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11849 states. [2018-12-08 09:14:18,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11849 to 11849. [2018-12-08 09:14:18,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11849 states. [2018-12-08 09:14:18,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11849 states to 11849 states and 39648 transitions. [2018-12-08 09:14:18,706 INFO L78 Accepts]: Start accepts. Automaton has 11849 states and 39648 transitions. Word has length 43 [2018-12-08 09:14:18,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:18,706 INFO L480 AbstractCegarLoop]: Abstraction has 11849 states and 39648 transitions. [2018-12-08 09:14:18,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 09:14:18,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11849 states and 39648 transitions. [2018-12-08 09:14:18,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-08 09:14:18,709 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:18,709 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] [2018-12-08 09:14:18,709 INFO L423 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:18,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:18,709 INFO L82 PathProgramCache]: Analyzing trace with hash -2022717967, now seen corresponding path program 1 times [2018-12-08 09:14:18,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:18,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:18,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:18,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:18,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:18,759 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 09:14:18,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:18,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:14:18,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 09:14:18,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:14:18,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:14:18,760 INFO L87 Difference]: Start difference. First operand 11849 states and 39648 transitions. Second operand 4 states. [2018-12-08 09:14:18,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:18,910 INFO L93 Difference]: Finished difference Result 17025 states and 55723 transitions. [2018-12-08 09:14:18,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:14:18,910 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-12-08 09:14:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:18,931 INFO L225 Difference]: With dead ends: 17025 [2018-12-08 09:14:18,931 INFO L226 Difference]: Without dead ends: 17025 [2018-12-08 09:14:18,931 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:14:18,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17025 states. [2018-12-08 09:14:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17025 to 12885. [2018-12-08 09:14:19,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12885 states. [2018-12-08 09:14:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12885 states to 12885 states and 42750 transitions. [2018-12-08 09:14:19,119 INFO L78 Accepts]: Start accepts. Automaton has 12885 states and 42750 transitions. Word has length 56 [2018-12-08 09:14:19,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:19,119 INFO L480 AbstractCegarLoop]: Abstraction has 12885 states and 42750 transitions. [2018-12-08 09:14:19,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 09:14:19,120 INFO L276 IsEmpty]: Start isEmpty. Operand 12885 states and 42750 transitions. [2018-12-08 09:14:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-08 09:14:19,124 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:19,124 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] [2018-12-08 09:14:19,124 INFO L423 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:19,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:19,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1977003375, now seen corresponding path program 1 times [2018-12-08 09:14:19,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:19,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:19,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:19,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:19,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:19,177 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 09:14:19,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:19,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:14:19,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 09:14:19,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:14:19,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:14:19,179 INFO L87 Difference]: Start difference. First operand 12885 states and 42750 transitions. Second operand 4 states. [2018-12-08 09:14:19,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:19,625 INFO L93 Difference]: Finished difference Result 18380 states and 60007 transitions. [2018-12-08 09:14:19,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:14:19,625 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-12-08 09:14:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:19,648 INFO L225 Difference]: With dead ends: 18380 [2018-12-08 09:14:19,648 INFO L226 Difference]: Without dead ends: 18380 [2018-12-08 09:14:19,648 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:14:19,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18380 states. [2018-12-08 09:14:19,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18380 to 16341. [2018-12-08 09:14:19,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16341 states. [2018-12-08 09:14:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16341 states to 16341 states and 53832 transitions. [2018-12-08 09:14:19,847 INFO L78 Accepts]: Start accepts. Automaton has 16341 states and 53832 transitions. Word has length 56 [2018-12-08 09:14:19,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:19,847 INFO L480 AbstractCegarLoop]: Abstraction has 16341 states and 53832 transitions. [2018-12-08 09:14:19,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 09:14:19,848 INFO L276 IsEmpty]: Start isEmpty. Operand 16341 states and 53832 transitions. [2018-12-08 09:14:19,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-08 09:14:19,851 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:19,851 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] [2018-12-08 09:14:19,851 INFO L423 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:19,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:19,852 INFO L82 PathProgramCache]: Analyzing trace with hash -964654224, now seen corresponding path program 1 times [2018-12-08 09:14:19,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:19,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:19,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:19,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:19,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:19,916 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 09:14:19,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:19,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:19,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:19,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:19,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:19,917 INFO L87 Difference]: Start difference. First operand 16341 states and 53832 transitions. Second operand 6 states. [2018-12-08 09:14:20,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:20,194 INFO L93 Difference]: Finished difference Result 17857 states and 58003 transitions. [2018-12-08 09:14:20,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 09:14:20,194 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-12-08 09:14:20,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:20,215 INFO L225 Difference]: With dead ends: 17857 [2018-12-08 09:14:20,215 INFO L226 Difference]: Without dead ends: 17857 [2018-12-08 09:14:20,215 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:14:20,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17857 states. [2018-12-08 09:14:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17857 to 16903. [2018-12-08 09:14:20,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16903 states. [2018-12-08 09:14:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16903 states to 16903 states and 55361 transitions. [2018-12-08 09:14:20,399 INFO L78 Accepts]: Start accepts. Automaton has 16903 states and 55361 transitions. Word has length 56 [2018-12-08 09:14:20,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:20,399 INFO L480 AbstractCegarLoop]: Abstraction has 16903 states and 55361 transitions. [2018-12-08 09:14:20,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:20,399 INFO L276 IsEmpty]: Start isEmpty. Operand 16903 states and 55361 transitions. [2018-12-08 09:14:20,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-12-08 09:14:20,402 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:20,403 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] [2018-12-08 09:14:20,403 INFO L423 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:20,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:20,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1258057231, now seen corresponding path program 1 times [2018-12-08 09:14:20,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:20,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:20,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:20,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:20,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:20,452 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 09:14:20,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:20,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:20,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:20,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:20,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:20,453 INFO L87 Difference]: Start difference. First operand 16903 states and 55361 transitions. Second operand 6 states. [2018-12-08 09:14:20,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:20,793 INFO L93 Difference]: Finished difference Result 23475 states and 75946 transitions. [2018-12-08 09:14:20,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 09:14:20,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-12-08 09:14:20,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:20,821 INFO L225 Difference]: With dead ends: 23475 [2018-12-08 09:14:20,821 INFO L226 Difference]: Without dead ends: 23443 [2018-12-08 09:14:20,821 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-12-08 09:14:20,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23443 states. [2018-12-08 09:14:21,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23443 to 18807. [2018-12-08 09:14:21,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18807 states. [2018-12-08 09:14:21,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18807 states to 18807 states and 61305 transitions. [2018-12-08 09:14:21,103 INFO L78 Accepts]: Start accepts. Automaton has 18807 states and 61305 transitions. Word has length 56 [2018-12-08 09:14:21,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:21,104 INFO L480 AbstractCegarLoop]: Abstraction has 18807 states and 61305 transitions. [2018-12-08 09:14:21,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:21,104 INFO L276 IsEmpty]: Start isEmpty. Operand 18807 states and 61305 transitions. [2018-12-08 09:14:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-08 09:14:21,115 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:21,115 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] [2018-12-08 09:14:21,115 INFO L423 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:21,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:21,115 INFO L82 PathProgramCache]: Analyzing trace with hash -2076609247, now seen corresponding path program 1 times [2018-12-08 09:14:21,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:21,115 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:21,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:21,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:21,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:21,189 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 09:14:21,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:21,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:14:21,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:14:21,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:14:21,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:21,190 INFO L87 Difference]: Start difference. First operand 18807 states and 61305 transitions. Second operand 7 states. [2018-12-08 09:14:21,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:21,626 INFO L93 Difference]: Finished difference Result 24535 states and 79153 transitions. [2018-12-08 09:14:21,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 09:14:21,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2018-12-08 09:14:21,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:21,655 INFO L225 Difference]: With dead ends: 24535 [2018-12-08 09:14:21,655 INFO L226 Difference]: Without dead ends: 24471 [2018-12-08 09:14:21,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-12-08 09:14:21,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24471 states. [2018-12-08 09:14:21,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24471 to 20899. [2018-12-08 09:14:21,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20899 states. [2018-12-08 09:14:21,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20899 states to 20899 states and 67710 transitions. [2018-12-08 09:14:21,898 INFO L78 Accepts]: Start accepts. Automaton has 20899 states and 67710 transitions. Word has length 70 [2018-12-08 09:14:21,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:21,899 INFO L480 AbstractCegarLoop]: Abstraction has 20899 states and 67710 transitions. [2018-12-08 09:14:21,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:14:21,899 INFO L276 IsEmpty]: Start isEmpty. Operand 20899 states and 67710 transitions. [2018-12-08 09:14:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-12-08 09:14:21,913 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:21,913 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] [2018-12-08 09:14:21,913 INFO L423 AbstractCegarLoop]: === Iteration 9 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:21,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:21,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1643744653, now seen corresponding path program 1 times [2018-12-08 09:14:21,914 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:21,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:21,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:21,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:21,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:21,933 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 09:14:21,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:21,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 09:14:21,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 09:14:21,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 09:14:21,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 09:14:21,934 INFO L87 Difference]: Start difference. First operand 20899 states and 67710 transitions. Second operand 3 states. [2018-12-08 09:14:22,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:22,028 INFO L93 Difference]: Finished difference Result 24947 states and 79522 transitions. [2018-12-08 09:14:22,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 09:14:22,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2018-12-08 09:14:22,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:22,057 INFO L225 Difference]: With dead ends: 24947 [2018-12-08 09:14:22,057 INFO L226 Difference]: Without dead ends: 24947 [2018-12-08 09:14:22,058 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 09:14:22,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24947 states. [2018-12-08 09:14:22,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24947 to 22467. [2018-12-08 09:14:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22467 states. [2018-12-08 09:14:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22467 states to 22467 states and 72190 transitions. [2018-12-08 09:14:22,308 INFO L78 Accepts]: Start accepts. Automaton has 22467 states and 72190 transitions. Word has length 72 [2018-12-08 09:14:22,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:22,308 INFO L480 AbstractCegarLoop]: Abstraction has 22467 states and 72190 transitions. [2018-12-08 09:14:22,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 09:14:22,308 INFO L276 IsEmpty]: Start isEmpty. Operand 22467 states and 72190 transitions. [2018-12-08 09:14:22,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-12-08 09:14:22,326 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:22,327 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] [2018-12-08 09:14:22,327 INFO L423 AbstractCegarLoop]: === Iteration 10 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:22,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:22,327 INFO L82 PathProgramCache]: Analyzing trace with hash -671189007, now seen corresponding path program 1 times [2018-12-08 09:14:22,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:22,327 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:22,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:22,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:22,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:22,372 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 09:14:22,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:22,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:14:22,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 09:14:22,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:14:22,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:14:22,372 INFO L87 Difference]: Start difference. First operand 22467 states and 72190 transitions. Second operand 4 states. [2018-12-08 09:14:22,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:22,726 INFO L93 Difference]: Finished difference Result 34667 states and 110116 transitions. [2018-12-08 09:14:22,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 09:14:22,727 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2018-12-08 09:14:22,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:22,769 INFO L225 Difference]: With dead ends: 34667 [2018-12-08 09:14:22,769 INFO L226 Difference]: Without dead ends: 34471 [2018-12-08 09:14:22,770 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:14:22,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34471 states. [2018-12-08 09:14:23,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34471 to 29099. [2018-12-08 09:14:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29099 states. [2018-12-08 09:14:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29099 states to 29099 states and 93336 transitions. [2018-12-08 09:14:23,245 INFO L78 Accepts]: Start accepts. Automaton has 29099 states and 93336 transitions. Word has length 76 [2018-12-08 09:14:23,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:23,245 INFO L480 AbstractCegarLoop]: Abstraction has 29099 states and 93336 transitions. [2018-12-08 09:14:23,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 09:14:23,245 INFO L276 IsEmpty]: Start isEmpty. Operand 29099 states and 93336 transitions. [2018-12-08 09:14:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-12-08 09:14:23,265 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:23,266 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] [2018-12-08 09:14:23,266 INFO L423 AbstractCegarLoop]: === Iteration 11 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:23,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:23,266 INFO L82 PathProgramCache]: Analyzing trace with hash 573575474, now seen corresponding path program 1 times [2018-12-08 09:14:23,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:23,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:23,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:23,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:23,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:23,335 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 09:14:23,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:23,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:23,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:23,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:23,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:23,336 INFO L87 Difference]: Start difference. First operand 29099 states and 93336 transitions. Second operand 6 states. [2018-12-08 09:14:23,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:23,798 INFO L93 Difference]: Finished difference Result 52152 states and 164833 transitions. [2018-12-08 09:14:23,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 09:14:23,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 76 [2018-12-08 09:14:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:23,869 INFO L225 Difference]: With dead ends: 52152 [2018-12-08 09:14:23,869 INFO L226 Difference]: Without dead ends: 51912 [2018-12-08 09:14:23,869 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-12-08 09:14:23,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51912 states. [2018-12-08 09:14:24,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51912 to 43712. [2018-12-08 09:14:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43712 states. [2018-12-08 09:14:24,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43712 states to 43712 states and 140003 transitions. [2018-12-08 09:14:24,421 INFO L78 Accepts]: Start accepts. Automaton has 43712 states and 140003 transitions. Word has length 76 [2018-12-08 09:14:24,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:24,421 INFO L480 AbstractCegarLoop]: Abstraction has 43712 states and 140003 transitions. [2018-12-08 09:14:24,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 43712 states and 140003 transitions. [2018-12-08 09:14:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-12-08 09:14:24,452 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:24,452 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] [2018-12-08 09:14:24,452 INFO L423 AbstractCegarLoop]: === Iteration 12 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:24,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:24,453 INFO L82 PathProgramCache]: Analyzing trace with hash -270896397, now seen corresponding path program 1 times [2018-12-08 09:14:24,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:24,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:24,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:24,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:24,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:24,487 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 09:14:24,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:24,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 09:14:24,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 09:14:24,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 09:14:24,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:14:24,487 INFO L87 Difference]: Start difference. First operand 43712 states and 140003 transitions. Second operand 5 states. [2018-12-08 09:14:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:24,522 INFO L93 Difference]: Finished difference Result 5456 states and 14431 transitions. [2018-12-08 09:14:24,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 09:14:24,523 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2018-12-08 09:14:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:24,527 INFO L225 Difference]: With dead ends: 5456 [2018-12-08 09:14:24,527 INFO L226 Difference]: Without dead ends: 4832 [2018-12-08 09:14:24,527 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:24,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2018-12-08 09:14:24,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4684. [2018-12-08 09:14:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4684 states. [2018-12-08 09:14:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4684 states to 4684 states and 12409 transitions. [2018-12-08 09:14:24,562 INFO L78 Accepts]: Start accepts. Automaton has 4684 states and 12409 transitions. Word has length 76 [2018-12-08 09:14:24,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:24,563 INFO L480 AbstractCegarLoop]: Abstraction has 4684 states and 12409 transitions. [2018-12-08 09:14:24,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 09:14:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 4684 states and 12409 transitions. [2018-12-08 09:14:24,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-08 09:14:24,566 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:24,566 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] [2018-12-08 09:14:24,566 INFO L423 AbstractCegarLoop]: === Iteration 13 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:24,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:24,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1415378869, now seen corresponding path program 1 times [2018-12-08 09:14:24,567 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:24,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:24,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:24,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:24,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:24,611 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 09:14:24,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:24,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 09:14:24,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 09:14:24,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 09:14:24,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:14:24,612 INFO L87 Difference]: Start difference. First operand 4684 states and 12409 transitions. Second operand 5 states. [2018-12-08 09:14:24,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:24,728 INFO L93 Difference]: Finished difference Result 5468 states and 14247 transitions. [2018-12-08 09:14:24,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 09:14:24,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2018-12-08 09:14:24,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:24,733 INFO L225 Difference]: With dead ends: 5468 [2018-12-08 09:14:24,733 INFO L226 Difference]: Without dead ends: 5440 [2018-12-08 09:14:24,733 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:14:24,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2018-12-08 09:14:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 5316. [2018-12-08 09:14:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5316 states. [2018-12-08 09:14:24,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 13901 transitions. [2018-12-08 09:14:24,770 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 13901 transitions. Word has length 89 [2018-12-08 09:14:24,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:24,771 INFO L480 AbstractCegarLoop]: Abstraction has 5316 states and 13901 transitions. [2018-12-08 09:14:24,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 09:14:24,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 13901 transitions. [2018-12-08 09:14:24,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-08 09:14:24,774 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:24,775 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] [2018-12-08 09:14:24,775 INFO L423 AbstractCegarLoop]: === Iteration 14 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:24,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:24,775 INFO L82 PathProgramCache]: Analyzing trace with hash -282188276, now seen corresponding path program 1 times [2018-12-08 09:14:24,775 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:24,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:24,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:24,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:24,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:24,798 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 09:14:24,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:24,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 09:14:24,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 09:14:24,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 09:14:24,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 09:14:24,799 INFO L87 Difference]: Start difference. First operand 5316 states and 13901 transitions. Second operand 3 states. [2018-12-08 09:14:24,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:24,868 INFO L93 Difference]: Finished difference Result 5440 states and 14174 transitions. [2018-12-08 09:14:24,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 09:14:24,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2018-12-08 09:14:24,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:24,873 INFO L225 Difference]: With dead ends: 5440 [2018-12-08 09:14:24,873 INFO L226 Difference]: Without dead ends: 5440 [2018-12-08 09:14:24,873 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 09:14:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2018-12-08 09:14:24,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 5384. [2018-12-08 09:14:24,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5384 states. [2018-12-08 09:14:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5384 states to 5384 states and 14051 transitions. [2018-12-08 09:14:24,910 INFO L78 Accepts]: Start accepts. Automaton has 5384 states and 14051 transitions. Word has length 89 [2018-12-08 09:14:24,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:24,910 INFO L480 AbstractCegarLoop]: Abstraction has 5384 states and 14051 transitions. [2018-12-08 09:14:24,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 09:14:24,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5384 states and 14051 transitions. [2018-12-08 09:14:24,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-08 09:14:24,914 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:24,914 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] [2018-12-08 09:14:24,914 INFO L423 AbstractCegarLoop]: === Iteration 15 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:24,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:24,914 INFO L82 PathProgramCache]: Analyzing trace with hash -827167888, now seen corresponding path program 1 times [2018-12-08 09:14:24,914 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:24,914 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:24,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:24,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:24,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:24,936 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 09:14:24,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:24,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:14:24,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 09:14:24,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:14:24,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:14:24,936 INFO L87 Difference]: Start difference. First operand 5384 states and 14051 transitions. Second operand 4 states. [2018-12-08 09:14:25,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:25,023 INFO L93 Difference]: Finished difference Result 9734 states and 25760 transitions. [2018-12-08 09:14:25,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 09:14:25,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2018-12-08 09:14:25,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:25,031 INFO L225 Difference]: With dead ends: 9734 [2018-12-08 09:14:25,032 INFO L226 Difference]: Without dead ends: 9706 [2018-12-08 09:14:25,032 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:14:25,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9706 states. [2018-12-08 09:14:25,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9706 to 5140. [2018-12-08 09:14:25,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5140 states. [2018-12-08 09:14:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5140 states to 5140 states and 13376 transitions. [2018-12-08 09:14:25,100 INFO L78 Accepts]: Start accepts. Automaton has 5140 states and 13376 transitions. Word has length 91 [2018-12-08 09:14:25,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:25,100 INFO L480 AbstractCegarLoop]: Abstraction has 5140 states and 13376 transitions. [2018-12-08 09:14:25,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 09:14:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5140 states and 13376 transitions. [2018-12-08 09:14:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-08 09:14:25,103 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:25,103 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] [2018-12-08 09:14:25,103 INFO L423 AbstractCegarLoop]: === Iteration 16 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:25,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:25,103 INFO L82 PathProgramCache]: Analyzing trace with hash -1904621007, now seen corresponding path program 1 times [2018-12-08 09:14:25,103 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:25,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:25,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:25,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:25,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:25,163 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 09:14:25,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:25,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:25,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:25,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:25,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:25,164 INFO L87 Difference]: Start difference. First operand 5140 states and 13376 transitions. Second operand 6 states. [2018-12-08 09:14:25,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:25,364 INFO L93 Difference]: Finished difference Result 5643 states and 14543 transitions. [2018-12-08 09:14:25,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 09:14:25,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-12-08 09:14:25,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:25,368 INFO L225 Difference]: With dead ends: 5643 [2018-12-08 09:14:25,368 INFO L226 Difference]: Without dead ends: 5643 [2018-12-08 09:14:25,368 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:25,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5643 states. [2018-12-08 09:14:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5643 to 5222. [2018-12-08 09:14:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5222 states. [2018-12-08 09:14:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5222 states to 5222 states and 13576 transitions. [2018-12-08 09:14:25,405 INFO L78 Accepts]: Start accepts. Automaton has 5222 states and 13576 transitions. Word has length 91 [2018-12-08 09:14:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:25,405 INFO L480 AbstractCegarLoop]: Abstraction has 5222 states and 13576 transitions. [2018-12-08 09:14:25,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5222 states and 13576 transitions. [2018-12-08 09:14:25,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-08 09:14:25,408 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:25,408 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] [2018-12-08 09:14:25,409 INFO L423 AbstractCegarLoop]: === Iteration 17 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:25,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:25,409 INFO L82 PathProgramCache]: Analyzing trace with hash -935039984, now seen corresponding path program 1 times [2018-12-08 09:14:25,409 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:25,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:25,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:25,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:25,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:25,476 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 09:14:25,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:25,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:14:25,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:14:25,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:14:25,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:25,477 INFO L87 Difference]: Start difference. First operand 5222 states and 13576 transitions. Second operand 7 states. [2018-12-08 09:14:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:25,694 INFO L93 Difference]: Finished difference Result 5203 states and 13406 transitions. [2018-12-08 09:14:25,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 09:14:25,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2018-12-08 09:14:25,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:25,698 INFO L225 Difference]: With dead ends: 5203 [2018-12-08 09:14:25,698 INFO L226 Difference]: Without dead ends: 5178 [2018-12-08 09:14:25,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-12-08 09:14:25,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5178 states. [2018-12-08 09:14:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5178 to 4801. [2018-12-08 09:14:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4801 states. [2018-12-08 09:14:25,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4801 states to 4801 states and 12542 transitions. [2018-12-08 09:14:25,731 INFO L78 Accepts]: Start accepts. Automaton has 4801 states and 12542 transitions. Word has length 91 [2018-12-08 09:14:25,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:25,732 INFO L480 AbstractCegarLoop]: Abstraction has 4801 states and 12542 transitions. [2018-12-08 09:14:25,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:14:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4801 states and 12542 transitions. [2018-12-08 09:14:25,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-08 09:14:25,734 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:25,735 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] [2018-12-08 09:14:25,735 INFO L423 AbstractCegarLoop]: === Iteration 18 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:25,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:25,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1383736623, now seen corresponding path program 1 times [2018-12-08 09:14:25,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:25,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:25,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:25,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:25,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:25,783 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 09:14:25,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:25,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:25,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:25,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:25,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:25,783 INFO L87 Difference]: Start difference. First operand 4801 states and 12542 transitions. Second operand 6 states. [2018-12-08 09:14:25,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:25,900 INFO L93 Difference]: Finished difference Result 4393 states and 11483 transitions. [2018-12-08 09:14:25,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 09:14:25,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-12-08 09:14:25,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:25,904 INFO L225 Difference]: With dead ends: 4393 [2018-12-08 09:14:25,904 INFO L226 Difference]: Without dead ends: 4393 [2018-12-08 09:14:25,904 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 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 09:14:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2018-12-08 09:14:25,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 4259. [2018-12-08 09:14:25,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4259 states. [2018-12-08 09:14:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4259 states to 4259 states and 11187 transitions. [2018-12-08 09:14:25,935 INFO L78 Accepts]: Start accepts. Automaton has 4259 states and 11187 transitions. Word has length 91 [2018-12-08 09:14:25,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:25,935 INFO L480 AbstractCegarLoop]: Abstraction has 4259 states and 11187 transitions. [2018-12-08 09:14:25,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:25,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4259 states and 11187 transitions. [2018-12-08 09:14:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-08 09:14:25,938 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:25,938 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] [2018-12-08 09:14:25,938 INFO L423 AbstractCegarLoop]: === Iteration 19 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:25,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:25,938 INFO L82 PathProgramCache]: Analyzing trace with hash -82841607, now seen corresponding path program 1 times [2018-12-08 09:14:25,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:25,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:25,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:25,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:25,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:25,990 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 09:14:25,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:25,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:25,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:25,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:25,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:25,991 INFO L87 Difference]: Start difference. First operand 4259 states and 11187 transitions. Second operand 6 states. [2018-12-08 09:14:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:26,150 INFO L93 Difference]: Finished difference Result 5737 states and 14773 transitions. [2018-12-08 09:14:26,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 09:14:26,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-12-08 09:14:26,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:26,154 INFO L225 Difference]: With dead ends: 5737 [2018-12-08 09:14:26,154 INFO L226 Difference]: Without dead ends: 5705 [2018-12-08 09:14:26,155 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:26,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5705 states. [2018-12-08 09:14:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5705 to 4600. [2018-12-08 09:14:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4600 states. [2018-12-08 09:14:26,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4600 states to 4600 states and 11989 transitions. [2018-12-08 09:14:26,193 INFO L78 Accepts]: Start accepts. Automaton has 4600 states and 11989 transitions. Word has length 91 [2018-12-08 09:14:26,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:26,193 INFO L480 AbstractCegarLoop]: Abstraction has 4600 states and 11989 transitions. [2018-12-08 09:14:26,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:26,193 INFO L276 IsEmpty]: Start isEmpty. Operand 4600 states and 11989 transitions. [2018-12-08 09:14:26,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-08 09:14:26,196 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:26,196 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] [2018-12-08 09:14:26,196 INFO L423 AbstractCegarLoop]: === Iteration 20 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:26,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:26,196 INFO L82 PathProgramCache]: Analyzing trace with hash -365992071, now seen corresponding path program 1 times [2018-12-08 09:14:26,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:26,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:26,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:26,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:26,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:26,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:26,242 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 09:14:26,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:26,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:14:26,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:14:26,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:14:26,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:26,243 INFO L87 Difference]: Start difference. First operand 4600 states and 11989 transitions. Second operand 7 states. [2018-12-08 09:14:26,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:26,471 INFO L93 Difference]: Finished difference Result 8360 states and 22331 transitions. [2018-12-08 09:14:26,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 09:14:26,471 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2018-12-08 09:14:26,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:26,477 INFO L225 Difference]: With dead ends: 8360 [2018-12-08 09:14:26,477 INFO L226 Difference]: Without dead ends: 8360 [2018-12-08 09:14:26,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-08 09:14:26,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8360 states. [2018-12-08 09:14:26,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8360 to 5036. [2018-12-08 09:14:26,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5036 states. [2018-12-08 09:14:26,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5036 states to 5036 states and 13135 transitions. [2018-12-08 09:14:26,524 INFO L78 Accepts]: Start accepts. Automaton has 5036 states and 13135 transitions. Word has length 91 [2018-12-08 09:14:26,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:26,525 INFO L480 AbstractCegarLoop]: Abstraction has 5036 states and 13135 transitions. [2018-12-08 09:14:26,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:14:26,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5036 states and 13135 transitions. [2018-12-08 09:14:26,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-08 09:14:26,528 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:26,528 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] [2018-12-08 09:14:26,528 INFO L423 AbstractCegarLoop]: === Iteration 21 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:26,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:26,528 INFO L82 PathProgramCache]: Analyzing trace with hash 878772410, now seen corresponding path program 1 times [2018-12-08 09:14:26,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:26,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:26,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:26,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:26,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:26,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:14:26,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:26,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:26,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:26,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:26,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:26,576 INFO L87 Difference]: Start difference. First operand 5036 states and 13135 transitions. Second operand 6 states. [2018-12-08 09:14:26,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:26,610 INFO L93 Difference]: Finished difference Result 7806 states and 20863 transitions. [2018-12-08 09:14:26,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 09:14:26,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-12-08 09:14:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:26,616 INFO L225 Difference]: With dead ends: 7806 [2018-12-08 09:14:26,616 INFO L226 Difference]: Without dead ends: 7806 [2018-12-08 09:14:26,616 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:26,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7806 states. [2018-12-08 09:14:26,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7806 to 4716. [2018-12-08 09:14:26,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4716 states. [2018-12-08 09:14:26,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 12277 transitions. [2018-12-08 09:14:26,658 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 12277 transitions. Word has length 91 [2018-12-08 09:14:26,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:26,658 INFO L480 AbstractCegarLoop]: Abstraction has 4716 states and 12277 transitions. [2018-12-08 09:14:26,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:26,658 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 12277 transitions. [2018-12-08 09:14:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-08 09:14:26,661 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:26,661 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] [2018-12-08 09:14:26,661 INFO L423 AbstractCegarLoop]: === Iteration 22 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:26,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:26,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1359488826, now seen corresponding path program 1 times [2018-12-08 09:14:26,661 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:26,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:26,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:26,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:26,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:26,716 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 09:14:26,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:26,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:26,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:26,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:26,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:26,717 INFO L87 Difference]: Start difference. First operand 4716 states and 12277 transitions. Second operand 6 states. [2018-12-08 09:14:26,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:26,814 INFO L93 Difference]: Finished difference Result 4076 states and 10405 transitions. [2018-12-08 09:14:26,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 09:14:26,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-12-08 09:14:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:26,817 INFO L225 Difference]: With dead ends: 4076 [2018-12-08 09:14:26,817 INFO L226 Difference]: Without dead ends: 4076 [2018-12-08 09:14:26,817 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:14:26,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4076 states. [2018-12-08 09:14:26,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4076 to 3489. [2018-12-08 09:14:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3489 states. [2018-12-08 09:14:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 9041 transitions. [2018-12-08 09:14:26,842 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 9041 transitions. Word has length 91 [2018-12-08 09:14:26,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:26,842 INFO L480 AbstractCegarLoop]: Abstraction has 3489 states and 9041 transitions. [2018-12-08 09:14:26,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:26,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 9041 transitions. [2018-12-08 09:14:26,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:26,844 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:26,844 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] [2018-12-08 09:14:26,844 INFO L423 AbstractCegarLoop]: === Iteration 23 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:26,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:26,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1413527866, now seen corresponding path program 1 times [2018-12-08 09:14:26,844 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:26,844 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:26,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:26,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:26,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:26,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:14:26,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:26,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:26,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:26,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:26,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:26,886 INFO L87 Difference]: Start difference. First operand 3489 states and 9041 transitions. Second operand 6 states. [2018-12-08 09:14:27,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:27,071 INFO L93 Difference]: Finished difference Result 3702 states and 9446 transitions. [2018-12-08 09:14:27,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 09:14:27,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-12-08 09:14:27,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:27,074 INFO L225 Difference]: With dead ends: 3702 [2018-12-08 09:14:27,074 INFO L226 Difference]: Without dead ends: 3657 [2018-12-08 09:14:27,074 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:27,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3657 states. [2018-12-08 09:14:27,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3657 to 3597. [2018-12-08 09:14:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3597 states. [2018-12-08 09:14:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3597 states to 3597 states and 9246 transitions. [2018-12-08 09:14:27,100 INFO L78 Accepts]: Start accepts. Automaton has 3597 states and 9246 transitions. Word has length 93 [2018-12-08 09:14:27,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:27,100 INFO L480 AbstractCegarLoop]: Abstraction has 3597 states and 9246 transitions. [2018-12-08 09:14:27,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:27,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3597 states and 9246 transitions. [2018-12-08 09:14:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:27,103 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:27,103 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] [2018-12-08 09:14:27,103 INFO L423 AbstractCegarLoop]: === Iteration 24 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:27,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:27,103 INFO L82 PathProgramCache]: Analyzing trace with hash -522132421, now seen corresponding path program 1 times [2018-12-08 09:14:27,103 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:27,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:27,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:27,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:27,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:27,140 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 09:14:27,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:27,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:14:27,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:14:27,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:14:27,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:27,141 INFO L87 Difference]: Start difference. First operand 3597 states and 9246 transitions. Second operand 7 states. [2018-12-08 09:14:27,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:27,393 INFO L93 Difference]: Finished difference Result 5508 states and 13847 transitions. [2018-12-08 09:14:27,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 09:14:27,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2018-12-08 09:14:27,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:27,398 INFO L225 Difference]: With dead ends: 5508 [2018-12-08 09:14:27,398 INFO L226 Difference]: Without dead ends: 5476 [2018-12-08 09:14:27,398 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-12-08 09:14:27,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2018-12-08 09:14:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 4226. [2018-12-08 09:14:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4226 states. [2018-12-08 09:14:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4226 states to 4226 states and 10779 transitions. [2018-12-08 09:14:27,430 INFO L78 Accepts]: Start accepts. Automaton has 4226 states and 10779 transitions. Word has length 93 [2018-12-08 09:14:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:27,431 INFO L480 AbstractCegarLoop]: Abstraction has 4226 states and 10779 transitions. [2018-12-08 09:14:27,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:14:27,431 INFO L276 IsEmpty]: Start isEmpty. Operand 4226 states and 10779 transitions. [2018-12-08 09:14:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:27,434 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:27,434 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] [2018-12-08 09:14:27,434 INFO L423 AbstractCegarLoop]: === Iteration 25 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:27,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:27,434 INFO L82 PathProgramCache]: Analyzing trace with hash 722632060, now seen corresponding path program 1 times [2018-12-08 09:14:27,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:27,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:27,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:27,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:27,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:27,496 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 09:14:27,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:27,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 09:14:27,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 09:14:27,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 09:14:27,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-08 09:14:27,497 INFO L87 Difference]: Start difference. First operand 4226 states and 10779 transitions. Second operand 6 states. [2018-12-08 09:14:27,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:27,573 INFO L93 Difference]: Finished difference Result 4301 states and 10863 transitions. [2018-12-08 09:14:27,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 09:14:27,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-12-08 09:14:27,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:27,576 INFO L225 Difference]: With dead ends: 4301 [2018-12-08 09:14:27,577 INFO L226 Difference]: Without dead ends: 4301 [2018-12-08 09:14:27,577 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-08 09:14:27,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2018-12-08 09:14:27,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4171. [2018-12-08 09:14:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4171 states. [2018-12-08 09:14:27,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4171 states to 4171 states and 10618 transitions. [2018-12-08 09:14:27,609 INFO L78 Accepts]: Start accepts. Automaton has 4171 states and 10618 transitions. Word has length 93 [2018-12-08 09:14:27,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:27,609 INFO L480 AbstractCegarLoop]: Abstraction has 4171 states and 10618 transitions. [2018-12-08 09:14:27,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 09:14:27,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4171 states and 10618 transitions. [2018-12-08 09:14:27,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:27,611 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:27,611 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] [2018-12-08 09:14:27,612 INFO L423 AbstractCegarLoop]: === Iteration 26 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:27,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:27,612 INFO L82 PathProgramCache]: Analyzing trace with hash -192366660, now seen corresponding path program 1 times [2018-12-08 09:14:27,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:27,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:27,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:27,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:27,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:27,647 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 09:14:27,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:27,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 09:14:27,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 09:14:27,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 09:14:27,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 09:14:27,649 INFO L87 Difference]: Start difference. First operand 4171 states and 10618 transitions. Second operand 5 states. [2018-12-08 09:14:27,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:27,772 INFO L93 Difference]: Finished difference Result 4715 states and 11962 transitions. [2018-12-08 09:14:27,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 09:14:27,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2018-12-08 09:14:27,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:27,775 INFO L225 Difference]: With dead ends: 4715 [2018-12-08 09:14:27,776 INFO L226 Difference]: Without dead ends: 4683 [2018-12-08 09:14:27,776 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:27,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4683 states. [2018-12-08 09:14:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4683 to 3650. [2018-12-08 09:14:27,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-12-08 09:14:27,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 9341 transitions. [2018-12-08 09:14:27,805 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 9341 transitions. Word has length 93 [2018-12-08 09:14:27,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:27,806 INFO L480 AbstractCegarLoop]: Abstraction has 3650 states and 9341 transitions. [2018-12-08 09:14:27,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 09:14:27,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 9341 transitions. [2018-12-08 09:14:27,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:27,808 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:27,808 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] [2018-12-08 09:14:27,808 INFO L423 AbstractCegarLoop]: === Iteration 27 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:27,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:27,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1052397821, now seen corresponding path program 1 times [2018-12-08 09:14:27,808 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:27,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:27,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:27,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:27,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:27,862 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 09:14:27,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:27,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:14:27,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:14:27,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:14:27,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:27,863 INFO L87 Difference]: Start difference. First operand 3650 states and 9341 transitions. Second operand 7 states. [2018-12-08 09:14:28,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:28,011 INFO L93 Difference]: Finished difference Result 5475 states and 14168 transitions. [2018-12-08 09:14:28,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 09:14:28,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2018-12-08 09:14:28,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:28,013 INFO L225 Difference]: With dead ends: 5475 [2018-12-08 09:14:28,013 INFO L226 Difference]: Without dead ends: 1974 [2018-12-08 09:14:28,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-12-08 09:14:28,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2018-12-08 09:14:28,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1974. [2018-12-08 09:14:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-12-08 09:14:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 5105 transitions. [2018-12-08 09:14:28,025 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 5105 transitions. Word has length 93 [2018-12-08 09:14:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:28,025 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 5105 transitions. [2018-12-08 09:14:28,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:14:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 5105 transitions. [2018-12-08 09:14:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:28,026 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:28,027 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] [2018-12-08 09:14:28,027 INFO L423 AbstractCegarLoop]: === Iteration 28 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:28,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:28,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1073077806, now seen corresponding path program 1 times [2018-12-08 09:14:28,027 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:28,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:28,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:28,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:28,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:28,080 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 09:14:28,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:28,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 09:14:28,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 09:14:28,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 09:14:28,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:28,081 INFO L87 Difference]: Start difference. First operand 1974 states and 5105 transitions. Second operand 7 states. [2018-12-08 09:14:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:28,164 INFO L93 Difference]: Finished difference Result 1988 states and 5137 transitions. [2018-12-08 09:14:28,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 09:14:28,164 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2018-12-08 09:14:28,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:28,166 INFO L225 Difference]: With dead ends: 1988 [2018-12-08 09:14:28,166 INFO L226 Difference]: Without dead ends: 1988 [2018-12-08 09:14:28,166 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-12-08 09:14:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2018-12-08 09:14:28,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1950. [2018-12-08 09:14:28,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1950 states. [2018-12-08 09:14:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1950 states to 1950 states and 5057 transitions. [2018-12-08 09:14:28,180 INFO L78 Accepts]: Start accepts. Automaton has 1950 states and 5057 transitions. Word has length 93 [2018-12-08 09:14:28,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:28,180 INFO L480 AbstractCegarLoop]: Abstraction has 1950 states and 5057 transitions. [2018-12-08 09:14:28,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 09:14:28,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1950 states and 5057 transitions. [2018-12-08 09:14:28,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:28,182 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:28,182 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] [2018-12-08 09:14:28,182 INFO L423 AbstractCegarLoop]: === Iteration 29 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:28,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:28,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1021200916, now seen corresponding path program 2 times [2018-12-08 09:14:28,182 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:28,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:28,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:28,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:14:28,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:28,255 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 09:14:28,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:28,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 09:14:28,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 09:14:28,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 09:14:28,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-08 09:14:28,256 INFO L87 Difference]: Start difference. First operand 1950 states and 5057 transitions. Second operand 8 states. [2018-12-08 09:14:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:28,509 INFO L93 Difference]: Finished difference Result 2282 states and 5776 transitions. [2018-12-08 09:14:28,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 09:14:28,509 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2018-12-08 09:14:28,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:28,511 INFO L225 Difference]: With dead ends: 2282 [2018-12-08 09:14:28,511 INFO L226 Difference]: Without dead ends: 2253 [2018-12-08 09:14:28,511 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-12-08 09:14:28,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2253 states. [2018-12-08 09:14:28,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2253 to 1942. [2018-12-08 09:14:28,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1942 states. [2018-12-08 09:14:28,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 5031 transitions. [2018-12-08 09:14:28,525 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 5031 transitions. Word has length 93 [2018-12-08 09:14:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:28,525 INFO L480 AbstractCegarLoop]: Abstraction has 1942 states and 5031 transitions. [2018-12-08 09:14:28,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 09:14:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 5031 transitions. [2018-12-08 09:14:28,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:28,526 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:28,527 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] [2018-12-08 09:14:28,527 INFO L423 AbstractCegarLoop]: === Iteration 30 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:28,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:28,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1338106093, now seen corresponding path program 2 times [2018-12-08 09:14:28,527 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:28,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:28,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:28,528 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 09:14:28,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:14:28,604 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 09:14:28,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:14:28,604 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-08 09:14:28,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 09:14:28,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 09:14:28,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-08 09:14:28,605 INFO L87 Difference]: Start difference. First operand 1942 states and 5031 transitions. Second operand 12 states. [2018-12-08 09:14:28,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:14:28,916 INFO L93 Difference]: Finished difference Result 3699 states and 9678 transitions. [2018-12-08 09:14:28,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-08 09:14:28,917 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2018-12-08 09:14:28,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:14:28,919 INFO L225 Difference]: With dead ends: 3699 [2018-12-08 09:14:28,919 INFO L226 Difference]: Without dead ends: 2563 [2018-12-08 09:14:28,920 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2018-12-08 09:14:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2018-12-08 09:14:28,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2411. [2018-12-08 09:14:28,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2411 states. [2018-12-08 09:14:28,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 6104 transitions. [2018-12-08 09:14:28,942 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 6104 transitions. Word has length 93 [2018-12-08 09:14:28,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:14:28,942 INFO L480 AbstractCegarLoop]: Abstraction has 2411 states and 6104 transitions. [2018-12-08 09:14:28,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 09:14:28,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 6104 transitions. [2018-12-08 09:14:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-08 09:14:28,944 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:14:28,944 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] [2018-12-08 09:14:28,945 INFO L423 AbstractCegarLoop]: === Iteration 31 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 09:14:28,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:14:28,945 INFO L82 PathProgramCache]: Analyzing trace with hash 45507955, now seen corresponding path program 3 times [2018-12-08 09:14:28,945 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:14:28,945 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:14:28,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:28,946 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 09:14:28,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:14:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:14:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:14:28,984 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 09:14:29,071 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 09:14:29,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:14:29 BasicIcfg [2018-12-08 09:14:29,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 09:14:29,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:14:29,072 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:14:29,073 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:14:29,073 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:14:14" (3/4) ... [2018-12-08 09:14:29,074 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 09:14:29,168 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3f9d0dee-687f-41f6-80c7-12bb049788dd/bin-2019/uautomizer/witness.graphml [2018-12-08 09:14:29,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:14:29,169 INFO L168 Benchmark]: Toolchain (without parser) took 15459.60 ms. Allocated memory was 1.0 GB in the beginning and 2.7 GB in the end (delta: 1.7 GB). Free memory was 956.0 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 347.6 MB. Max. memory is 11.5 GB. [2018-12-08 09:14:29,169 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:14:29,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -125.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-12-08 09:14:29,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-08 09:14:29,170 INFO L168 Benchmark]: Boogie Preprocessor took 19.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:14:29,170 INFO L168 Benchmark]: RCFGBuilder took 301.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 11.5 GB. [2018-12-08 09:14:29,171 INFO L168 Benchmark]: TraceAbstraction took 14645.10 ms. Allocated memory was 1.1 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. [2018-12-08 09:14:29,171 INFO L168 Benchmark]: Witness Printer took 95.88 ms. Allocated memory is still 2.7 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-12-08 09:14:29,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -125.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.96 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 301.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.8 MB). Peak memory consumption was 50.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14645.10 ms. Allocated memory was 1.1 GB in the beginning and 2.7 GB in the end (delta: 1.6 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 11.5 GB. * Witness Printer took 95.88 ms. Allocated memory is still 2.7 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 34.2 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L671] -1 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L672] -1 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0] [L673] -1 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0] [L675] -1 int x = 0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L677] -1 int y = 0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L678] -1 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L679] -1 int y$mem_tmp; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L680] -1 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L681] -1 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L682] -1 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L683] -1 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0] [L684] -1 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L685] -1 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L686] -1 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0] [L687] -1 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L688] -1 int y$w_buff0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L689] -1 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L690] -1 int y$w_buff1; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L691] -1 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L692] -1 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L693] -1 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L753] -1 pthread_t t2483; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L754] FCALL, FORK -1 pthread_create(&t2483, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L755] -1 pthread_t t2484; VAL [__unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L756] FCALL, FORK -1 pthread_create(&t2484, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L697] 0 y$w_buff1 = y$w_buff0 [L698] 0 y$w_buff0 = 2 [L699] 0 y$w_buff1_used = y$w_buff0_used [L700] 0 y$w_buff0_used = (_Bool)1 [L4] COND FALSE 0 !(!expression) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L702] 0 y$r_buff1_thd0 = y$r_buff0_thd0 [L703] 0 y$r_buff1_thd1 = y$r_buff0_thd1 [L704] 0 y$r_buff1_thd2 = y$r_buff0_thd2 [L705] 0 y$r_buff0_thd1 = (_Bool)1 [L708] 0 x = 1 VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L711] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L725] 1 x = 2 [L728] 1 y = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L711] 0 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L712] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L731] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L712] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L731] EXPR 1 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=2] [L731] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)=2, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=2] [L731] 1 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L732] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L732] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L733] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used=0, y$w_buff1=0, y$w_buff1_used=0] [L733] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L734] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2=0, y$w_buff1=0, y$w_buff1_used=0] [L734] 1 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L735] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2=0, y$w_buff1=0, y$w_buff1_used=0] [L735] 1 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L738] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L713] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L713] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L714] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 VAL [__unbuffered_cnt=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L714] 0 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L715] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [__unbuffered_cnt=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L715] 0 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L718] 0 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L758] -1 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L762] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L762] EXPR -1 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L762] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L762] -1 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L763] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L763] -1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L764] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L764] -1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L765] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L765] -1 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L766] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L766] -1 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L769] -1 weak$$choice0 = __VERIFIER_nondet_pointer() [L770] -1 weak$$choice2 = __VERIFIER_nondet_pointer() [L771] -1 y$flush_delayed = weak$$choice2 [L772] -1 y$mem_tmp = y VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L773] EXPR -1 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L773] -1 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L774] EXPR -1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L774] -1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L775] EXPR -1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L775] -1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L776] EXPR -1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L776] -1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L777] EXPR -1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L777] -1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L778] EXPR -1 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L778] -1 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L779] EXPR -1 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L779] -1 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L780] -1 main$tmp_guard1 = !(x == 2 && y == 2) VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L781] EXPR -1 y$flush_delayed ? y$mem_tmp : y VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=1, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L781] -1 y = y$flush_delayed ? y$mem_tmp : y [L782] -1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L4] COND TRUE -1 !expression VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L4] -1 __VERIFIER_error() VAL [__unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 178 locations, 3 error locations. UNSAFE Result, 14.5s OverallTime, 31 OverallIterations, 1 TraceHistogramMax, 7.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7076 SDtfs, 6292 SDslu, 16018 SDs, 0 SdLazy, 6614 SolverSat, 377 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 304 GetRequests, 86 SyntacticMatches, 16 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43712occurred in iteration=11, 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: 4.5s AutomataMinimizationTime, 30 MinimizatonAttempts, 92793 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2453 NumberOfCodeBlocks, 2453 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 2330 ConstructedInterpolants, 0 QuantifiedInterpolants, 459554 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 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...