./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/psyco/psyco_security_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/psyco/psyco_security_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/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 8cc1f38a976dda42d71f86348e088e61d77f90eb .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:44:19,430 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:44:19,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:44:19,438 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:44:19,438 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:44:19,439 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:44:19,439 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:44:19,440 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:44:19,441 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:44:19,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:44:19,443 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:44:19,443 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:44:19,443 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:44:19,444 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:44:19,445 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:44:19,445 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:44:19,446 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:44:19,447 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:44:19,448 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:44:19,449 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:44:19,450 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:44:19,451 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:44:19,452 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:44:19,452 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:44:19,453 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:44:19,453 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:44:19,454 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:44:19,454 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:44:19,455 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:44:19,456 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:44:19,456 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:44:19,456 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:44:19,456 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:44:19,457 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:44:19,457 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:44:19,457 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:44:19,458 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:44:19,467 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:44:19,467 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:44:19,468 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:44:19,468 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:44:19,468 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:44:19,468 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:44:19,469 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:44:19,469 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:44:19,469 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:44:19,469 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:44:19,469 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:44:19,469 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:44:19,469 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:44:19,469 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:44:19,469 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:44:19,470 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:44:19,470 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:44:19,470 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:44:19,470 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:44:19,470 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:44:19,470 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:44:19,470 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:44:19,470 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:44:19,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:44:19,471 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:44:19,471 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:44:19,471 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:44:19,471 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:44:19,471 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:44:19,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:44:19,471 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_9f606188-e276-4823-a42b-d7e91506183a/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 -> 8cc1f38a976dda42d71f86348e088e61d77f90eb [2018-11-28 12:44:19,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:44:19,504 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:44:19,507 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:44:19,508 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:44:19,508 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:44:19,509 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/../../sv-benchmarks/c/psyco/psyco_security_true-unreach-call_false-termination.c [2018-11-28 12:44:19,553 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/data/d0b6d1a7d/bf6c1c9e14cf4cadb79723da3465fdd5/FLAG5b63e41bd [2018-11-28 12:44:19,898 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:44:19,898 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/sv-benchmarks/c/psyco/psyco_security_true-unreach-call_false-termination.c [2018-11-28 12:44:19,905 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/data/d0b6d1a7d/bf6c1c9e14cf4cadb79723da3465fdd5/FLAG5b63e41bd [2018-11-28 12:44:19,917 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/data/d0b6d1a7d/bf6c1c9e14cf4cadb79723da3465fdd5 [2018-11-28 12:44:19,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:44:19,920 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:44:19,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:44:19,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:44:19,924 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:44:19,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:19" (1/1) ... [2018-11-28 12:44:19,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0d5add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:19, skipping insertion in model container [2018-11-28 12:44:19,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:44:19" (1/1) ... [2018-11-28 12:44:19,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:44:19,951 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:44:20,073 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:44:20,076 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:44:20,095 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:44:20,104 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:44:20,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20 WrapperNode [2018-11-28 12:44:20,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:44:20,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:44:20,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:44:20,105 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:44:20,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:44:20,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:44:20,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:44:20,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:44:20,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... [2018-11-28 12:44:20,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:44:20,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:44:20,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:44:20,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:44:20,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/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 [2018-11-28 12:44:20,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:44:20,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:44:20,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:44:20,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:44:20,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:44:20,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:44:20,498 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:44:20,498 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-28 12:44:20,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:20 BoogieIcfgContainer [2018-11-28 12:44:20,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:44:20,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:44:20,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:44:20,501 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:44:20,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:44:19" (1/3) ... [2018-11-28 12:44:20,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652fbe99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:44:20, skipping insertion in model container [2018-11-28 12:44:20,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:44:20" (2/3) ... [2018-11-28 12:44:20,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@652fbe99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:44:20, skipping insertion in model container [2018-11-28 12:44:20,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:20" (3/3) ... [2018-11-28 12:44:20,503 INFO L112 eAbstractionObserver]: Analyzing ICFG psyco_security_true-unreach-call_false-termination.c [2018-11-28 12:44:20,508 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:44:20,514 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:44:20,523 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:44:20,541 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:44:20,541 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:44:20,541 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:44:20,541 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:44:20,541 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:44:20,542 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:44:20,542 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:44:20,542 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:44:20,542 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:44:20,553 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-11-28 12:44:20,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:44:20,556 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:20,557 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:20,558 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:20,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:20,561 INFO L82 PathProgramCache]: Analyzing trace with hash -105811556, now seen corresponding path program 1 times [2018-11-28 12:44:20,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:20,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:20,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:20,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:44:20,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:20,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:44:20,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:44:20,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:44:20,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:44:20,653 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2018-11-28 12:44:20,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:20,673 INFO L93 Difference]: Finished difference Result 160 states and 298 transitions. [2018-11-28 12:44:20,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:44:20,674 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-11-28 12:44:20,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:20,681 INFO L225 Difference]: With dead ends: 160 [2018-11-28 12:44:20,681 INFO L226 Difference]: Without dead ends: 78 [2018-11-28 12:44:20,684 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:44:20,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-28 12:44:20,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-11-28 12:44:20,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-28 12:44:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 113 transitions. [2018-11-28 12:44:20,712 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 113 transitions. Word has length 13 [2018-11-28 12:44:20,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:20,712 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 113 transitions. [2018-11-28 12:44:20,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:44:20,713 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 113 transitions. [2018-11-28 12:44:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 12:44:20,713 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:20,713 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:20,713 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:20,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:20,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1547300989, now seen corresponding path program 1 times [2018-11-28 12:44:20,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:20,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:20,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:20,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:44:20,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:20,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:20,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:20,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:20,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:20,753 INFO L87 Difference]: Start difference. First operand 78 states and 113 transitions. Second operand 3 states. [2018-11-28 12:44:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:20,794 INFO L93 Difference]: Finished difference Result 153 states and 224 transitions. [2018-11-28 12:44:20,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:20,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-28 12:44:20,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:20,796 INFO L225 Difference]: With dead ends: 153 [2018-11-28 12:44:20,796 INFO L226 Difference]: Without dead ends: 81 [2018-11-28 12:44:20,797 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 [2018-11-28 12:44:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-28 12:44:20,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2018-11-28 12:44:20,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-11-28 12:44:20,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 116 transitions. [2018-11-28 12:44:20,804 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 116 transitions. Word has length 14 [2018-11-28 12:44:20,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:20,805 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 116 transitions. [2018-11-28 12:44:20,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:20,805 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 116 transitions. [2018-11-28 12:44:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 12:44:20,805 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:20,806 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:20,806 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:20,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:20,806 INFO L82 PathProgramCache]: Analyzing trace with hash 555004895, now seen corresponding path program 1 times [2018-11-28 12:44:20,806 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:20,806 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:20,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:20,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:44:20,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:20,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:20,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:20,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:20,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:20,843 INFO L87 Difference]: Start difference. First operand 81 states and 116 transitions. Second operand 3 states. [2018-11-28 12:44:20,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:20,887 INFO L93 Difference]: Finished difference Result 146 states and 213 transitions. [2018-11-28 12:44:20,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:20,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-28 12:44:20,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:20,888 INFO L225 Difference]: With dead ends: 146 [2018-11-28 12:44:20,888 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 12:44:20,889 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 [2018-11-28 12:44:20,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 12:44:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-28 12:44:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:44:20,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 102 transitions. [2018-11-28 12:44:20,894 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 102 transitions. Word has length 19 [2018-11-28 12:44:20,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:20,894 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 102 transitions. [2018-11-28 12:44:20,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:20,894 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 102 transitions. [2018-11-28 12:44:20,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:44:20,895 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:20,895 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:20,895 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:20,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:20,896 INFO L82 PathProgramCache]: Analyzing trace with hash -624681896, now seen corresponding path program 1 times [2018-11-28 12:44:20,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:20,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:20,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:20,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:44:20,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:20,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:20,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:20,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:20,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:20,921 INFO L87 Difference]: Start difference. First operand 72 states and 102 transitions. Second operand 3 states. [2018-11-28 12:44:20,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:20,978 INFO L93 Difference]: Finished difference Result 192 states and 280 transitions. [2018-11-28 12:44:20,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:20,979 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-28 12:44:20,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:20,980 INFO L225 Difference]: With dead ends: 192 [2018-11-28 12:44:20,980 INFO L226 Difference]: Without dead ends: 122 [2018-11-28 12:44:20,980 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 [2018-11-28 12:44:20,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-11-28 12:44:20,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 108. [2018-11-28 12:44:20,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-11-28 12:44:20,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2018-11-28 12:44:20,988 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 22 [2018-11-28 12:44:20,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:20,988 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2018-11-28 12:44:20,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:20,988 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2018-11-28 12:44:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 12:44:20,989 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:20,989 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:20,989 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:20,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:20,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1531598883, now seen corresponding path program 1 times [2018-11-28 12:44:20,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:20,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:20,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:20,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:21,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:44:21,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:21,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:21,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:21,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:21,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:21,019 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 3 states. [2018-11-28 12:44:21,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:21,055 INFO L93 Difference]: Finished difference Result 183 states and 260 transitions. [2018-11-28 12:44:21,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:21,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-11-28 12:44:21,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:21,056 INFO L225 Difference]: With dead ends: 183 [2018-11-28 12:44:21,056 INFO L226 Difference]: Without dead ends: 87 [2018-11-28 12:44:21,056 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 [2018-11-28 12:44:21,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-11-28 12:44:21,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2018-11-28 12:44:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-28 12:44:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2018-11-28 12:44:21,062 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 23 [2018-11-28 12:44:21,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:21,062 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2018-11-28 12:44:21,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2018-11-28 12:44:21,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 12:44:21,063 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:21,063 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:21,064 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:21,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:21,064 INFO L82 PathProgramCache]: Analyzing trace with hash -576284788, now seen corresponding path program 1 times [2018-11-28 12:44:21,064 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:21,064 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:21,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:21,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:21,084 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 12:44:21,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:21,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:21,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:21,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:21,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:21,084 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand 3 states. [2018-11-28 12:44:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:21,111 INFO L93 Difference]: Finished difference Result 134 states and 190 transitions. [2018-11-28 12:44:21,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:21,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-11-28 12:44:21,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:21,111 INFO L225 Difference]: With dead ends: 134 [2018-11-28 12:44:21,111 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 12:44:21,112 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 [2018-11-28 12:44:21,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 12:44:21,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-11-28 12:44:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-28 12:44:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2018-11-28 12:44:21,116 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 29 [2018-11-28 12:44:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:21,116 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2018-11-28 12:44:21,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2018-11-28 12:44:21,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 12:44:21,116 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:21,116 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:21,117 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:21,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:21,117 INFO L82 PathProgramCache]: Analyzing trace with hash -31288535, now seen corresponding path program 1 times [2018-11-28 12:44:21,117 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:21,117 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:21,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:21,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 12:44:21,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:21,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:21,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:21,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:21,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:21,133 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 3 states. [2018-11-28 12:44:21,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:21,211 INFO L93 Difference]: Finished difference Result 158 states and 228 transitions. [2018-11-28 12:44:21,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:21,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-28 12:44:21,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:21,219 INFO L225 Difference]: With dead ends: 158 [2018-11-28 12:44:21,220 INFO L226 Difference]: Without dead ends: 111 [2018-11-28 12:44:21,220 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 [2018-11-28 12:44:21,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-11-28 12:44:21,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2018-11-28 12:44:21,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-28 12:44:21,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2018-11-28 12:44:21,227 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 30 [2018-11-28 12:44:21,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:21,227 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2018-11-28 12:44:21,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:21,227 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2018-11-28 12:44:21,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 12:44:21,229 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:21,230 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:21,230 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:21,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:21,230 INFO L82 PathProgramCache]: Analyzing trace with hash 180888733, now seen corresponding path program 1 times [2018-11-28 12:44:21,230 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:21,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:21,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:21,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:21,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 12:44:21,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:21,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:21,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:21,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:21,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:21,272 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand 3 states. [2018-11-28 12:44:21,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:21,308 INFO L93 Difference]: Finished difference Result 166 states and 232 transitions. [2018-11-28 12:44:21,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:21,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-28 12:44:21,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:21,312 INFO L225 Difference]: With dead ends: 166 [2018-11-28 12:44:21,312 INFO L226 Difference]: Without dead ends: 92 [2018-11-28 12:44:21,313 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 [2018-11-28 12:44:21,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-11-28 12:44:21,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-11-28 12:44:21,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-11-28 12:44:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 120 transitions. [2018-11-28 12:44:21,331 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 120 transitions. Word has length 31 [2018-11-28 12:44:21,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:21,331 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 120 transitions. [2018-11-28 12:44:21,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:21,331 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 120 transitions. [2018-11-28 12:44:21,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 12:44:21,332 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:21,332 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:21,332 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:21,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:21,333 INFO L82 PathProgramCache]: Analyzing trace with hash 317242888, now seen corresponding path program 1 times [2018-11-28 12:44:21,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:21,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:21,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:21,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 12:44:21,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:21,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:21,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:21,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:21,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:21,372 INFO L87 Difference]: Start difference. First operand 92 states and 120 transitions. Second operand 3 states. [2018-11-28 12:44:21,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:21,405 INFO L93 Difference]: Finished difference Result 139 states and 184 transitions. [2018-11-28 12:44:21,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:21,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-28 12:44:21,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:21,406 INFO L225 Difference]: With dead ends: 139 [2018-11-28 12:44:21,406 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 12:44:21,407 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 [2018-11-28 12:44:21,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 12:44:21,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-28 12:44:21,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 12:44:21,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2018-11-28 12:44:21,412 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 31 [2018-11-28 12:44:21,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:21,413 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions. [2018-11-28 12:44:21,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:21,413 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions. [2018-11-28 12:44:21,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 12:44:21,413 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:21,415 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:21,415 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:21,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:21,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1695196396, now seen corresponding path program 1 times [2018-11-28 12:44:21,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:21,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:21,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:21,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 12:44:21,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:21,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:21,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:21,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:21,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:21,438 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand 3 states. [2018-11-28 12:44:21,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:21,478 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2018-11-28 12:44:21,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:21,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-11-28 12:44:21,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:21,479 INFO L225 Difference]: With dead ends: 74 [2018-11-28 12:44:21,480 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 12:44:21,480 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 [2018-11-28 12:44:21,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 12:44:21,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-11-28 12:44:21,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-28 12:44:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2018-11-28 12:44:21,484 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 32 [2018-11-28 12:44:21,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:21,484 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2018-11-28 12:44:21,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:21,484 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2018-11-28 12:44:21,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 12:44:21,485 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:44:21,485 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:44:21,485 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:44:21,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:44:21,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1000030502, now seen corresponding path program 1 times [2018-11-28 12:44:21,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:44:21,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:44:21,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:44:21,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:44:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:44:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 12:44:21,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:44:21,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:44:21,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:44:21,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:44:21,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:44:21,529 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand 3 states. [2018-11-28 12:44:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:44:21,544 INFO L93 Difference]: Finished difference Result 111 states and 143 transitions. [2018-11-28 12:44:21,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:44:21,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-11-28 12:44:21,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:44:21,545 INFO L225 Difference]: With dead ends: 111 [2018-11-28 12:44:21,545 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:44:21,545 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 [2018-11-28 12:44:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:44:21,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:44:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:44:21,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:44:21,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 12:44:21,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:44:21,546 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:44:21,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:44:21,547 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:44:21,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:44:21,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:44:21,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:44:21,623 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:44:21,623 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:44:21,623 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:44:21,623 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:44:21,623 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:44:21,623 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:44:21,623 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 331) no Hoare annotation was computed. [2018-11-28 12:44:21,623 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 382) no Hoare annotation was computed. [2018-11-28 12:44:21,623 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 261) no Hoare annotation was computed. [2018-11-28 12:44:21,623 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 390) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L184(lines 184 199) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L118(lines 118 129) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L366(lines 366 377) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L300(lines 300 315) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L234(lines 234 245) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 113) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L350(lines 350 361) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L284(lines 284 299) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 229) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L86(lines 86 88) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L334(lines 334 345) no Hoare annotation was computed. [2018-11-28 12:44:21,624 INFO L448 ceAbstractionStarter]: For program point L202(lines 202 213) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 72) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 329) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 197) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 56) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point L302(lines 302 313) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 390) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point L170(lines 170 172) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 297) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L448 ceAbstractionStarter]: For program point L154(lines 154 156) no Hoare annotation was computed. [2018-11-28 12:44:21,625 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 385) the Hoare annotation is: (or (and (<= main_~this_state~0 0) (= main_~q~0 0)) (and (= main_~this_state~0 3) (<= 4 main_~q~0))) [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 385) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L270(lines 270 272) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L138(lines 138 140) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 256) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L122(lines 122 124) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 372) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 240) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 108) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 356) no Hoare annotation was computed. [2018-11-28 12:44:21,626 INFO L448 ceAbstractionStarter]: For program point L222(lines 222 224) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 389) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L444 ceAbstractionStarter]: At program point L371(lines 13 390) the Hoare annotation is: false [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L338(lines 338 340) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L206(lines 206 208) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L322(lines 322 324) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L190(lines 190 192) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 308) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L290(lines 290 292) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 43) no Hoare annotation was computed. [2018-11-28 12:44:21,627 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 41) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 390) the Hoare annotation is: true [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 95) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 98) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 79) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 63) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L164(lines 164 179) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 163) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 93) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L264(lines 264 279) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L132(lines 132 147) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 182) no Hoare annotation was computed. [2018-11-28 12:44:21,628 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 77) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L248(lines 248 263) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L116(lines 116 131) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 61) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L364(lines 364 379) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L232(lines 232 247) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L166(lines 166 177) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 115) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2018-11-28 12:44:21,629 INFO L444 ceAbstractionStarter]: At program point L381(lines 22 385) the Hoare annotation is: (let ((.cse0 (<= main_~this_state~0 0))) (or (and .cse0 (= main_~q~0 2)) (and (= main_~q~0 3) (= main_~this_state~0 2)) (and .cse0 (= main_~q~0 0)) (and (= main_~this_state~0 3) (<= 4 main_~q~0)))) [2018-11-28 12:44:21,629 INFO L448 ceAbstractionStarter]: For program point L348(lines 348 363) no Hoare annotation was computed. [2018-11-28 12:44:21,630 INFO L448 ceAbstractionStarter]: For program point L216(lines 216 231) no Hoare annotation was computed. [2018-11-28 12:44:21,630 INFO L448 ceAbstractionStarter]: For program point L183(lines 183 282) no Hoare annotation was computed. [2018-11-28 12:44:21,630 INFO L448 ceAbstractionStarter]: For program point L150(lines 150 161) no Hoare annotation was computed. [2018-11-28 12:44:21,630 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 347) no Hoare annotation was computed. [2018-11-28 12:44:21,630 INFO L448 ceAbstractionStarter]: For program point L266(lines 266 277) no Hoare annotation was computed. [2018-11-28 12:44:21,630 INFO L448 ceAbstractionStarter]: For program point L200(lines 200 215) no Hoare annotation was computed. [2018-11-28 12:44:21,630 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 145) no Hoare annotation was computed. [2018-11-28 12:44:21,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:44:21 BoogieIcfgContainer [2018-11-28 12:44:21,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:44:21,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:44:21,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:44:21,641 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:44:21,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:44:20" (3/4) ... [2018-11-28 12:44:21,644 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:44:21,649 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:44:21,649 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:44:21,654 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:44:21,654 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:44:21,679 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9f606188-e276-4823-a42b-d7e91506183a/bin-2019/uautomizer/witness.graphml [2018-11-28 12:44:21,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:44:21,680 INFO L168 Benchmark]: Toolchain (without parser) took 1760.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 954.4 MB in the beginning and 933.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 149.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:21,681 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:44:21,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.86 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 940.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:21,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.24 ms. Allocated memory is still 1.0 GB. Free memory is still 940.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:44:21,682 INFO L168 Benchmark]: Boogie Preprocessor took 60.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:21,683 INFO L168 Benchmark]: RCFGBuilder took 319.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:21,683 INFO L168 Benchmark]: TraceAbstraction took 1142.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 936.4 MB in the end (delta: 162.1 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:21,685 INFO L168 Benchmark]: Witness Printer took 37.90 ms. Allocated memory is still 1.2 GB. Free memory was 936.4 MB in the beginning and 933.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:44:21,687 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.86 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 940.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.24 ms. Allocated memory is still 1.0 GB. Free memory is still 940.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 319.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1142.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 936.4 MB in the end (delta: 162.1 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. * Witness Printer took 37.90 ms. Allocated memory is still 1.2 GB. Free memory was 936.4 MB in the beginning and 933.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 389]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((this_state <= 0 && q == 2) || (q == 3 && this_state == 2)) || (this_state <= 0 && q == 0)) || (this_state == 3 && 4 <= q) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (this_state <= 0 && q == 0) || (this_state == 3 && 4 <= q) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1008 SDtfs, 337 SDslu, 455 SDs, 0 SdLazy, 217 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 28 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 49 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 10566 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 55/55 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...