./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/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 e55536c26dc3d2371d51cd4bd073d4d19c2d7077 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:51:53,222 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:53,223 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:53,231 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:53,232 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:53,232 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:53,233 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:53,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:53,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:53,237 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:53,238 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:53,238 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:53,239 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:53,240 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:53,240 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:53,241 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:53,242 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:53,244 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:53,245 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:53,246 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:53,247 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:53,248 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:53,250 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:53,251 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:53,251 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:53,251 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:53,252 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:53,253 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:53,254 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:53,255 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:53,255 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:53,255 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:53,255 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:53,255 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:53,256 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:53,257 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:53,257 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 15:51:53,264 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:53,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:53,265 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:51:53,265 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 15:51:53,266 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:51:53,266 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:51:53,266 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:51:53,266 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:53,266 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:53,266 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:51:53,266 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:51:53,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:51:53,267 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:51:53,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:53,268 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:53,268 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:51:53,268 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:51:53,268 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:51:53,268 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:51:53,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:51:53,268 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_aae872a0-c844-48fe-b296-fa81a1e7c58b/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 -> e55536c26dc3d2371d51cd4bd073d4d19c2d7077 [2018-11-18 15:51:53,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:53,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:53,303 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:53,304 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:53,304 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:53,305 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 15:51:53,346 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/data/0c5341b8d/d72a98e9f3204a798d9db9b861ff82f6/FLAG7bdd7705a [2018-11-18 15:51:53,668 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:53,669 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/sv-benchmarks/c/loop-invgen/apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 15:51:53,674 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/data/0c5341b8d/d72a98e9f3204a798d9db9b861ff82f6/FLAG7bdd7705a [2018-11-18 15:51:53,684 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/data/0c5341b8d/d72a98e9f3204a798d9db9b861ff82f6 [2018-11-18 15:51:53,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:53,688 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:51:53,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:53,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:53,692 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:53,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:53,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@399b9200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53, skipping insertion in model container [2018-11-18 15:51:53,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:53,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:53,728 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:53,880 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:53,884 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:53,916 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:53,929 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:53,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53 WrapperNode [2018-11-18 15:51:53,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:53,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:53,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:53,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:53,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:53,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:53,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:53,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:53,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:53,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:53,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (1/1) ... [2018-11-18 15:51:54,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:54,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:54,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:54,010 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:54,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/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 [2018-11-18 15:51:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:51:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:51:54,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:51:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 15:51:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 15:51:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 15:51:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:51:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:51:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:54,403 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:54,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:54 BoogieIcfgContainer [2018-11-18 15:51:54,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:54,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:51:54,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:51:54,407 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:51:54,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:51:53" (1/3) ... [2018-11-18 15:51:54,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d213627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:54, skipping insertion in model container [2018-11-18 15:51:54,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:53" (2/3) ... [2018-11-18 15:51:54,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d213627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:54, skipping insertion in model container [2018-11-18 15:51:54,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:54" (3/3) ... [2018-11-18 15:51:54,409 INFO L112 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 15:51:54,416 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:51:54,427 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2018-11-18 15:51:54,437 INFO L257 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2018-11-18 15:51:54,462 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:51:54,462 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:51:54,462 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:51:54,463 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:51:54,463 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:54,463 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:54,463 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:51:54,463 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:54,463 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:51:54,481 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2018-11-18 15:51:54,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:51:54,487 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:54,487 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:54,489 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:54,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:54,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1637525138, now seen corresponding path program 1 times [2018-11-18 15:51:54,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:54,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:54,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:54,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:54,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:54,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:54,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:54,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:54,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:51:54,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:51:54,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:51:54,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:51:54,652 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 3 states. [2018-11-18 15:51:54,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:54,678 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2018-11-18 15:51:54,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:51:54,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-18 15:51:54,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:54,687 INFO L225 Difference]: With dead ends: 93 [2018-11-18 15:51:54,687 INFO L226 Difference]: Without dead ends: 80 [2018-11-18 15:51:54,690 INFO L604 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 [2018-11-18 15:51:54,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-11-18 15:51:54,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-11-18 15:51:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-11-18 15:51:54,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2018-11-18 15:51:54,718 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2018-11-18 15:51:54,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:54,718 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2018-11-18 15:51:54,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:51:54,718 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2018-11-18 15:51:54,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 15:51:54,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:54,719 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:54,719 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:54,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:54,720 INFO L82 PathProgramCache]: Analyzing trace with hash 776331368, now seen corresponding path program 1 times [2018-11-18 15:51:54,720 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:54,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:54,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:54,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:54,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:54,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:54,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:51:54,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:51:54,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:51:54,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:51:54,795 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 6 states. [2018-11-18 15:51:54,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:54,929 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2018-11-18 15:51:54,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:54,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-18 15:51:54,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:54,931 INFO L225 Difference]: With dead ends: 80 [2018-11-18 15:51:54,931 INFO L226 Difference]: Without dead ends: 78 [2018-11-18 15:51:54,932 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:51:54,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-18 15:51:54,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2018-11-18 15:51:54,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-18 15:51:54,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2018-11-18 15:51:54,940 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2018-11-18 15:51:54,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:54,940 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2018-11-18 15:51:54,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:51:54,941 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2018-11-18 15:51:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 15:51:54,941 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:54,941 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:54,942 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:54,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:54,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1269768629, now seen corresponding path program 1 times [2018-11-18 15:51:54,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:54,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:54,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:54,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:54,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:54,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:54,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:54,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:54,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:54,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:54,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:54,997 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2018-11-18 15:51:55,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:55,092 INFO L93 Difference]: Finished difference Result 116 states and 121 transitions. [2018-11-18 15:51:55,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:55,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-11-18 15:51:55,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:55,093 INFO L225 Difference]: With dead ends: 116 [2018-11-18 15:51:55,093 INFO L226 Difference]: Without dead ends: 114 [2018-11-18 15:51:55,094 INFO L604 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 [2018-11-18 15:51:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-18 15:51:55,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 76. [2018-11-18 15:51:55,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 15:51:55,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2018-11-18 15:51:55,100 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2018-11-18 15:51:55,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:55,101 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2018-11-18 15:51:55,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:55,101 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2018-11-18 15:51:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 15:51:55,102 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:55,102 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:55,102 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:55,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:55,103 INFO L82 PathProgramCache]: Analyzing trace with hash -708118726, now seen corresponding path program 1 times [2018-11-18 15:51:55,103 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:55,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:55,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:55,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:55,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:55,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:51:55,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:51:55,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:51:55,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:51:55,169 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2018-11-18 15:51:55,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:55,266 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2018-11-18 15:51:55,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:55,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 15:51:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:55,268 INFO L225 Difference]: With dead ends: 76 [2018-11-18 15:51:55,268 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 15:51:55,268 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:51:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 15:51:55,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 15:51:55,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 15:51:55,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2018-11-18 15:51:55,275 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2018-11-18 15:51:55,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:55,275 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2018-11-18 15:51:55,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:51:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2018-11-18 15:51:55,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:51:55,276 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:55,276 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:55,276 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:55,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:55,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1317531748, now seen corresponding path program 1 times [2018-11-18 15:51:55,277 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:55,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:55,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:55,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:55,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:55,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:55,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:55,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:55,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:55,329 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 5 states. [2018-11-18 15:51:55,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:55,470 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2018-11-18 15:51:55,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:51:55,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-18 15:51:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:55,471 INFO L225 Difference]: With dead ends: 141 [2018-11-18 15:51:55,472 INFO L226 Difference]: Without dead ends: 139 [2018-11-18 15:51:55,472 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:51:55,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2018-11-18 15:51:55,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2018-11-18 15:51:55,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 15:51:55,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2018-11-18 15:51:55,480 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2018-11-18 15:51:55,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:55,480 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2018-11-18 15:51:55,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:55,480 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2018-11-18 15:51:55,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:51:55,481 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:55,481 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:55,482 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:55,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:55,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1321265557, now seen corresponding path program 1 times [2018-11-18 15:51:55,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:55,483 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:55,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:55,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:55,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:55,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:55,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:55,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:55,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:55,540 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 5 states. [2018-11-18 15:51:55,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:55,648 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2018-11-18 15:51:55,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:51:55,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-18 15:51:55,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:55,649 INFO L225 Difference]: With dead ends: 108 [2018-11-18 15:51:55,649 INFO L226 Difference]: Without dead ends: 106 [2018-11-18 15:51:55,650 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:51:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-18 15:51:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2018-11-18 15:51:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-18 15:51:55,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2018-11-18 15:51:55,656 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2018-11-18 15:51:55,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:55,656 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2018-11-18 15:51:55,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:55,657 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2018-11-18 15:51:55,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 15:51:55,657 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:55,657 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:55,658 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:55,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:55,659 INFO L82 PathProgramCache]: Analyzing trace with hash -2106185532, now seen corresponding path program 1 times [2018-11-18 15:51:55,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:55,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:55,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:55,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:55,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:55,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:55,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:55,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:55,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:55,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:55,720 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 5 states. [2018-11-18 15:51:55,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:55,818 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2018-11-18 15:51:55,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:51:55,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-18 15:51:55,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:55,820 INFO L225 Difference]: With dead ends: 121 [2018-11-18 15:51:55,820 INFO L226 Difference]: Without dead ends: 119 [2018-11-18 15:51:55,820 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:55,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-11-18 15:51:55,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2018-11-18 15:51:55,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 15:51:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2018-11-18 15:51:55,828 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2018-11-18 15:51:55,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:55,828 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2018-11-18 15:51:55,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2018-11-18 15:51:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 15:51:55,829 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:55,829 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:55,830 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:55,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:55,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1990437563, now seen corresponding path program 1 times [2018-11-18 15:51:55,830 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:55,830 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:55,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:55,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:55,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:55,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:55,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:55,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:55,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:55,880 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 5 states. [2018-11-18 15:51:55,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:55,947 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2018-11-18 15:51:55,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:51:55,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-11-18 15:51:55,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:55,948 INFO L225 Difference]: With dead ends: 77 [2018-11-18 15:51:55,948 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 15:51:55,948 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:55,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 15:51:55,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-18 15:51:55,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 15:51:55,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2018-11-18 15:51:55,954 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2018-11-18 15:51:55,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:55,954 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2018-11-18 15:51:55,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2018-11-18 15:51:55,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 15:51:55,955 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:55,955 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:55,956 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:55,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:55,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1549950965, now seen corresponding path program 1 times [2018-11-18 15:51:55,956 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:55,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:55,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:55,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:55,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:55,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:51:55,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:51:55,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:51:55,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:51:55,980 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 3 states. [2018-11-18 15:51:56,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:56,006 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2018-11-18 15:51:56,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:51:56,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2018-11-18 15:51:56,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:56,008 INFO L225 Difference]: With dead ends: 115 [2018-11-18 15:51:56,008 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 15:51:56,008 INFO L604 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 [2018-11-18 15:51:56,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 15:51:56,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-11-18 15:51:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 15:51:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2018-11-18 15:51:56,014 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2018-11-18 15:51:56,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:56,014 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2018-11-18 15:51:56,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:51:56,015 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2018-11-18 15:51:56,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 15:51:56,015 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:56,015 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:56,016 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:56,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:56,016 INFO L82 PathProgramCache]: Analyzing trace with hash 54388864, now seen corresponding path program 1 times [2018-11-18 15:51:56,016 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:56,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:56,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:56,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:56,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:56,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:56,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:51:56,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:51:56,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:51:56,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:56,065 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 7 states. [2018-11-18 15:51:56,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:56,128 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2018-11-18 15:51:56,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:56,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-11-18 15:51:56,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:56,129 INFO L225 Difference]: With dead ends: 76 [2018-11-18 15:51:56,129 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 15:51:56,129 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:51:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 15:51:56,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2018-11-18 15:51:56,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 15:51:56,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2018-11-18 15:51:56,135 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2018-11-18 15:51:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:56,135 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2018-11-18 15:51:56,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:51:56,135 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2018-11-18 15:51:56,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 15:51:56,136 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:56,136 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 15:51:56,137 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:56,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:56,137 INFO L82 PathProgramCache]: Analyzing trace with hash -196719107, now seen corresponding path program 1 times [2018-11-18 15:51:56,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:56,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:56,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:56,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:56,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 15:51:56,193 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:51:56,193 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:51:56,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:56,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:51:56,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 15:51:56,299 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:51:56,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2018-11-18 15:51:56,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:51:56,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:51:56,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:51:56,300 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 9 states. [2018-11-18 15:51:56,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:56,419 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2018-11-18 15:51:56,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:56,419 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-11-18 15:51:56,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:56,420 INFO L225 Difference]: With dead ends: 111 [2018-11-18 15:51:56,420 INFO L226 Difference]: Without dead ends: 109 [2018-11-18 15:51:56,420 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:51:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-11-18 15:51:56,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2018-11-18 15:51:56,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-18 15:51:56,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2018-11-18 15:51:56,426 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2018-11-18 15:51:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:56,426 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2018-11-18 15:51:56,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:51:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2018-11-18 15:51:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 15:51:56,427 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:56,427 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:56,428 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:56,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:56,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1686057932, now seen corresponding path program 1 times [2018-11-18 15:51:56,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:56,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:56,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:56,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:56,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:56,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:56,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:51:56,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:51:56,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:51:56,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:51:56,464 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2018-11-18 15:51:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:56,523 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-11-18 15:51:56,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:56,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-18 15:51:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:56,524 INFO L225 Difference]: With dead ends: 70 [2018-11-18 15:51:56,524 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 15:51:56,525 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:51:56,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 15:51:56,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-18 15:51:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 15:51:56,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2018-11-18 15:51:56,529 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2018-11-18 15:51:56,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:56,529 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2018-11-18 15:51:56,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:51:56,529 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2018-11-18 15:51:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 15:51:56,530 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:56,530 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:56,531 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:56,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:56,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1806773561, now seen corresponding path program 1 times [2018-11-18 15:51:56,531 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:56,531 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:56,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:56,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:56,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 15:51:56,598 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:51:56,598 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:51:56,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:56,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:51:56,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 15:51:56,684 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:51:56,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2018-11-18 15:51:56,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:51:56,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:51:56,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:51:56,685 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 9 states. [2018-11-18 15:51:56,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:56,747 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2018-11-18 15:51:56,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:56,748 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-11-18 15:51:56,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:56,748 INFO L225 Difference]: With dead ends: 69 [2018-11-18 15:51:56,748 INFO L226 Difference]: Without dead ends: 67 [2018-11-18 15:51:56,748 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:51:56,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-18 15:51:56,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2018-11-18 15:51:56,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-18 15:51:56,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2018-11-18 15:51:56,751 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2018-11-18 15:51:56,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:56,752 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2018-11-18 15:51:56,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:51:56,752 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2018-11-18 15:51:56,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 15:51:56,752 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:56,752 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:56,753 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:56,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:56,753 INFO L82 PathProgramCache]: Analyzing trace with hash -287576151, now seen corresponding path program 1 times [2018-11-18 15:51:56,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:56,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:56,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:56,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:56,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:56,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:56,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:51:56,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:51:56,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:51:56,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:56,817 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 7 states. [2018-11-18 15:51:56,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:56,888 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2018-11-18 15:51:56,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:56,888 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-18 15:51:56,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:56,889 INFO L225 Difference]: With dead ends: 63 [2018-11-18 15:51:56,889 INFO L226 Difference]: Without dead ends: 61 [2018-11-18 15:51:56,889 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:51:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-18 15:51:56,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2018-11-18 15:51:56,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-18 15:51:56,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2018-11-18 15:51:56,892 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2018-11-18 15:51:56,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:56,892 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2018-11-18 15:51:56,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:51:56,892 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2018-11-18 15:51:56,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 15:51:56,893 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:56,893 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:56,893 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:56,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:56,893 INFO L82 PathProgramCache]: Analyzing trace with hash -324922921, now seen corresponding path program 1 times [2018-11-18 15:51:56,894 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:56,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:56,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:56,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:56,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:56,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:51:56,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:51:56,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:51:56,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:56,944 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2018-11-18 15:51:57,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,015 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2018-11-18 15:51:57,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:51:57,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2018-11-18 15:51:57,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,016 INFO L225 Difference]: With dead ends: 71 [2018-11-18 15:51:57,016 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 15:51:57,017 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:51:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 15:51:57,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2018-11-18 15:51:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 15:51:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2018-11-18 15:51:57,021 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2018-11-18 15:51:57,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,021 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2018-11-18 15:51:57,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:51:57,022 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2018-11-18 15:51:57,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 15:51:57,022 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,022 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:57,023 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1080633106, now seen corresponding path program 1 times [2018-11-18 15:51:57,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:57,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:57,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:57,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:57,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:57,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:57,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:57,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:57,077 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 5 states. [2018-11-18 15:51:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,147 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2018-11-18 15:51:57,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:51:57,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2018-11-18 15:51:57,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,148 INFO L225 Difference]: With dead ends: 91 [2018-11-18 15:51:57,148 INFO L226 Difference]: Without dead ends: 89 [2018-11-18 15:51:57,148 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:57,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-18 15:51:57,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2018-11-18 15:51:57,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-18 15:51:57,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2018-11-18 15:51:57,153 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2018-11-18 15:51:57,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,153 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2018-11-18 15:51:57,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2018-11-18 15:51:57,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 15:51:57,154 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,154 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:57,154 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,155 INFO L82 PathProgramCache]: Analyzing trace with hash -860108895, now seen corresponding path program 1 times [2018-11-18 15:51:57,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:57,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:57,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:57,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:57,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:57,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:57,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:57,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:57,201 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 5 states. [2018-11-18 15:51:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,249 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2018-11-18 15:51:57,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:51:57,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-11-18 15:51:57,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,251 INFO L225 Difference]: With dead ends: 61 [2018-11-18 15:51:57,251 INFO L226 Difference]: Without dead ends: 59 [2018-11-18 15:51:57,251 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:57,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-18 15:51:57,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-11-18 15:51:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-18 15:51:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2018-11-18 15:51:57,256 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2018-11-18 15:51:57,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,256 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2018-11-18 15:51:57,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:57,256 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2018-11-18 15:51:57,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 15:51:57,257 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,257 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:57,257 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1930828060, now seen corresponding path program 1 times [2018-11-18 15:51:57,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:57,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:57,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:57,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:57,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:57,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:57,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:57,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:57,298 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states. [2018-11-18 15:51:57,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,338 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2018-11-18 15:51:57,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:57,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-11-18 15:51:57,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,339 INFO L225 Difference]: With dead ends: 70 [2018-11-18 15:51:57,339 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 15:51:57,340 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:51:57,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 15:51:57,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2018-11-18 15:51:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-18 15:51:57,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2018-11-18 15:51:57,344 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 41 [2018-11-18 15:51:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,344 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2018-11-18 15:51:57,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2018-11-18 15:51:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 15:51:57,345 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,345 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:57,345 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,346 INFO L82 PathProgramCache]: Analyzing trace with hash 273875486, now seen corresponding path program 1 times [2018-11-18 15:51:57,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:57,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:57,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:57,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:57,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:51:57,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:51:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:51:57,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:51:57,400 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand 6 states. [2018-11-18 15:51:57,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,438 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2018-11-18 15:51:57,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:57,439 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2018-11-18 15:51:57,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,440 INFO L225 Difference]: With dead ends: 66 [2018-11-18 15:51:57,440 INFO L226 Difference]: Without dead ends: 64 [2018-11-18 15:51:57,440 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:51:57,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-11-18 15:51:57,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2018-11-18 15:51:57,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-18 15:51:57,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2018-11-18 15:51:57,444 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 42 [2018-11-18 15:51:57,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,444 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2018-11-18 15:51:57,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:51:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2018-11-18 15:51:57,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 15:51:57,445 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,445 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:57,445 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,446 INFO L82 PathProgramCache]: Analyzing trace with hash -99791318, now seen corresponding path program 1 times [2018-11-18 15:51:57,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:57,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:57,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:57,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:57,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:57,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:57,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:57,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:57,488 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 5 states. [2018-11-18 15:51:57,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,566 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2018-11-18 15:51:57,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:51:57,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2018-11-18 15:51:57,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,568 INFO L225 Difference]: With dead ends: 88 [2018-11-18 15:51:57,568 INFO L226 Difference]: Without dead ends: 86 [2018-11-18 15:51:57,568 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-11-18 15:51:57,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 60. [2018-11-18 15:51:57,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-18 15:51:57,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2018-11-18 15:51:57,573 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 43 [2018-11-18 15:51:57,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,573 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2018-11-18 15:51:57,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2018-11-18 15:51:57,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 15:51:57,573 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,573 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:57,574 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,574 INFO L82 PathProgramCache]: Analyzing trace with hash 2020599801, now seen corresponding path program 1 times [2018-11-18 15:51:57,574 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:57,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:57,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:57,632 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:51:57,633 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:51:57,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:51:57,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:57,748 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:51:57,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9 [2018-11-18 15:51:57,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:51:57,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:51:57,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:51:57,749 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand 9 states. [2018-11-18 15:51:57,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,810 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-11-18 15:51:57,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:51:57,810 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2018-11-18 15:51:57,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,811 INFO L225 Difference]: With dead ends: 60 [2018-11-18 15:51:57,811 INFO L226 Difference]: Without dead ends: 58 [2018-11-18 15:51:57,811 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:51:57,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-18 15:51:57,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-18 15:51:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 15:51:57,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-11-18 15:51:57,816 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 44 [2018-11-18 15:51:57,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,816 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-11-18 15:51:57,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:51:57,816 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-11-18 15:51:57,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 15:51:57,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,817 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:57,817 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1201439652, now seen corresponding path program 1 times [2018-11-18 15:51:57,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:57,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:57,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:57,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:57,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:57,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:57,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:57,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:57,872 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 5 states. [2018-11-18 15:51:57,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:57,927 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2018-11-18 15:51:57,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:51:57,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-11-18 15:51:57,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:57,930 INFO L225 Difference]: With dead ends: 69 [2018-11-18 15:51:57,930 INFO L226 Difference]: Without dead ends: 67 [2018-11-18 15:51:57,930 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:51:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-18 15:51:57,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2018-11-18 15:51:57,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-18 15:51:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2018-11-18 15:51:57,935 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 44 [2018-11-18 15:51:57,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:57,935 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2018-11-18 15:51:57,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2018-11-18 15:51:57,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 15:51:57,936 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:57,936 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:57,936 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:57,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:57,936 INFO L82 PathProgramCache]: Analyzing trace with hash 40764835, now seen corresponding path program 1 times [2018-11-18 15:51:57,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:57,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:57,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:57,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 15:51:57,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:57,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:51:57,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:51:57,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:51:57,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:51:57,986 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 5 states. [2018-11-18 15:51:58,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:58,076 INFO L93 Difference]: Finished difference Result 75 states and 80 transitions. [2018-11-18 15:51:58,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:51:58,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 49 [2018-11-18 15:51:58,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:58,077 INFO L225 Difference]: With dead ends: 75 [2018-11-18 15:51:58,077 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:51:58,078 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:51:58,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:51:58,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:51:58,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:51:58,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:51:58,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-11-18 15:51:58,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:58,078 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:51:58,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:51:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:51:58,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:51:58,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:51:58,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:51:58,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:51:58,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:51:58,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 15:51:58,480 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2018-11-18 15:51:58,584 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 27 [2018-11-18 15:51:58,766 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2018-11-18 15:51:58,868 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:51:58,871 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point L60(lines 60 412) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 279) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point L250(line 250) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 434) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 15:51:58,871 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L118(lines 118 398) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 303) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L209(line 209) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L267(line 267) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 430) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L152(line 152) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L367(lines 367 390) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 409) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L301(lines 301 311) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 172) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L219(lines 219 339) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L120(line 120) no Hoare annotation was computed. [2018-11-18 15:51:58,872 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 427) no Hoare annotation was computed. [2018-11-18 15:51:58,873 INFO L421 ceAbstractionStarter]: At program point L310(lines 225 339) the Hoare annotation is: (let ((.cse2 (<= 2 main_~main__cp~0)) (.cse1 (= main_~main__c~0 0)) (.cse3 (= main_~__VERIFIER_assert__cond~9 1)) (.cse4 (and (and (not (= 0 main_~__VERIFIER_assert__cond~7)) (and (= main_~__VERIFIER_assert__cond~3 1) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~5)) (<= (+ main_~main__cp~0 1) main_~main__urilen~0) (<= 1 main_~main__scheme~0) (not (= 0 main_~__VERIFIER_assert__cond~6)) (not (= 0 main_~__VERIFIER_assert__cond~1))) (<= 1 main_~main__cp~0) (= main_~__VERIFIER_assert__cond~0 1) (= main_~__VERIFIER_assert__cond~4 1)) (not (= 0 main_~__VERIFIER_assert__cond~8))))) (or (and (let ((.cse0 (let ((.cse5 (not (= 0 main_~__VERIFIER_assert__cond~11)))) (or (and .cse2 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse3 .cse4 .cse5) (and .cse2 .cse3 .cse4 .cse5 (not (= 0 main_~__VERIFIER_assert__cond~12))))))) (or (and (<= 1 main_~main__c~0) (not (= 0 main_~__VERIFIER_assert__cond~13)) .cse0) (and .cse1 .cse0))) (= main_~__VERIFIER_assert__cond~10 1)) (and .cse2 (<= (+ main_~main__cp~0 2) main_~main__urilen~0) .cse1 .cse3 .cse4 (= main_~__VERIFIER_assert__cond~8 1)))) [2018-11-18 15:51:58,873 INFO L425 ceAbstractionStarter]: For program point L277(lines 277 315) no Hoare annotation was computed. [2018-11-18 15:51:58,873 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 434) no Hoare annotation was computed. [2018-11-18 15:51:58,873 INFO L425 ceAbstractionStarter]: For program point L236(lines 236 326) no Hoare annotation was computed. [2018-11-18 15:51:58,873 INFO L425 ceAbstractionStarter]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 291) no Hoare annotation was computed. [2018-11-18 15:51:58,873 INFO L425 ceAbstractionStarter]: For program point L170(lines 170 352) no Hoare annotation was computed. [2018-11-18 15:51:58,873 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2018-11-18 15:51:58,873 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 431) no Hoare annotation was computed. [2018-11-18 15:51:58,873 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 434) the Hoare annotation is: true [2018-11-18 15:51:58,873 INFO L425 ceAbstractionStarter]: For program point L369(line 369) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L303(line 303) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L138(lines 138 357) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 333) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L130(lines 130 392) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L221(line 221) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 422) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L279(line 279) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 428) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L238(line 238) no Hoare annotation was computed. [2018-11-18 15:51:58,874 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 15:51:58,875 INFO L425 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 238) no Hoare annotation was computed. [2018-11-18 15:51:58,875 INFO L425 ceAbstractionStarter]: For program point L106(lines 106 400) no Hoare annotation was computed. [2018-11-18 15:51:58,875 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 120) no Hoare annotation was computed. [2018-11-18 15:51:58,875 INFO L421 ceAbstractionStarter]: At program point L387(lines 124 398) the Hoare annotation is: (and (let ((.cse0 (= main_~__VERIFIER_assert__cond~3 1)) (.cse1 (<= 1 main_~main__cp~0)) (.cse2 (<= 1 main_~main__scheme~0)) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~1)))) (or (and .cse0 (= main_~__VERIFIER_assert__cond~2 1) .cse1 .cse2 .cse3) (and .cse0 (not (= 0 main_~__VERIFIER_assert__cond~2)) .cse1 (not (= 0 main_~__VERIFIER_assert__cond~17)) (= main_~__VERIFIER_assert__cond~16 1) .cse2 .cse3))) (< main_~main__cp~0 main_~main__urilen~0) (= main_~__VERIFIER_assert__cond~0 1)) [2018-11-18 15:51:58,875 INFO L425 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 250) no Hoare annotation was computed. [2018-11-18 15:51:58,875 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 349) no Hoare annotation was computed. [2018-11-18 15:51:58,875 INFO L425 ceAbstractionStarter]: For program point L379(lines 379 388) no Hoare annotation was computed. [2018-11-18 15:51:58,875 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 407) no Hoare annotation was computed. [2018-11-18 15:51:58,876 INFO L425 ceAbstractionStarter]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2018-11-18 15:51:58,876 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 432) no Hoare annotation was computed. [2018-11-18 15:51:58,876 INFO L425 ceAbstractionStarter]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 369) no Hoare annotation was computed. [2018-11-18 15:51:58,876 INFO L425 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-11-18 15:51:58,876 INFO L421 ceAbstractionStarter]: At program point L396(lines 126 397) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~3 1) (let ((.cse0 (<= 1 main_~main__cp~0)) (.cse1 (= main_~__VERIFIER_assert__cond~0 1)) (.cse2 (<= 1 main_~main__scheme~0)) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~1)))) (or (and (not (= 0 main_~__VERIFIER_assert__cond~2)) .cse0 .cse1 (not (= 0 main_~__VERIFIER_assert__cond~16)) .cse2 .cse3) (and (= main_~__VERIFIER_assert__cond~2 1) .cse0 .cse1 .cse2 .cse3))) (< main_~main__cp~0 main_~main__urilen~0)) [2018-11-18 15:51:58,876 INFO L425 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 209) no Hoare annotation was computed. [2018-11-18 15:51:58,876 INFO L425 ceAbstractionStarter]: For program point L99(lines 99 406) no Hoare annotation was computed. [2018-11-18 15:51:58,876 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 411) no Hoare annotation was computed. [2018-11-18 15:51:58,877 INFO L421 ceAbstractionStarter]: At program point L322(lines 257 323) the Hoare annotation is: (and (= main_~__VERIFIER_assert__cond~10 1) (let ((.cse0 (let ((.cse1 (<= 2 main_~main__cp~0)) (.cse2 (not (= 0 main_~__VERIFIER_assert__cond~7))) (.cse3 (= main_~__VERIFIER_assert__cond~3 1)) (.cse4 (not (= 0 main_~__VERIFIER_assert__cond~2))) (.cse5 (not (= 0 main_~__VERIFIER_assert__cond~5))) (.cse6 (not (= 0 main_~__VERIFIER_assert__cond~8))) (.cse7 (not (= 0 main_~__VERIFIER_assert__cond~11))) (.cse8 (= main_~__VERIFIER_assert__cond~9 1)) (.cse9 (< (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse10 (= main_~__VERIFIER_assert__cond~0 1)) (.cse11 (= main_~__VERIFIER_assert__cond~4 1)) (.cse12 (<= 1 main_~main__scheme~0)) (.cse13 (not (= 0 main_~__VERIFIER_assert__cond~6))) (.cse14 (not (= 0 main_~__VERIFIER_assert__cond~1)))) (or (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (not (= 0 main_~__VERIFIER_assert__cond~12)) .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14) (and .cse1 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14))))) (or (and (<= 1 main_~main__c~0) (not (= 0 main_~__VERIFIER_assert__cond~13)) .cse0) (and .cse0 (= main_~main__c~0 0))))) [2018-11-18 15:51:58,877 INFO L425 ceAbstractionStarter]: For program point L289(lines 289 313) no Hoare annotation was computed. [2018-11-18 15:51:58,877 INFO L425 ceAbstractionStarter]: For program point L157(lines 157 354) no Hoare annotation was computed. [2018-11-18 15:51:58,877 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 417) no Hoare annotation was computed. [2018-11-18 15:51:58,877 INFO L425 ceAbstractionStarter]: For program point L248(lines 248 324) no Hoare annotation was computed. [2018-11-18 15:51:58,877 INFO L425 ceAbstractionStarter]: For program point L182(lines 182 350) no Hoare annotation was computed. [2018-11-18 15:51:58,877 INFO L421 ceAbstractionStarter]: At program point L405(lines 99 406) the Hoare annotation is: (= main_~__VERIFIER_assert__cond~0 1) [2018-11-18 15:51:58,877 INFO L425 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 267) no Hoare annotation was computed. [2018-11-18 15:51:58,877 INFO L425 ceAbstractionStarter]: For program point L207(lines 207 341) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L108(line 108) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 429) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 317) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L199(lines 199 348) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L257(lines 257 323) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L381(line 381) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L92(line 92) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L150(lines 150 355) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 433) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 221) no Hoare annotation was computed. [2018-11-18 15:51:58,878 INFO L425 ceAbstractionStarter]: For program point L291(line 291) no Hoare annotation was computed. [2018-11-18 15:51:58,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:51:58 BoogieIcfgContainer [2018-11-18 15:51:58,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:51:58,912 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:51:58,912 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:51:58,912 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:51:58,913 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:54" (3/4) ... [2018-11-18 15:51:58,916 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:51:58,921 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:51:58,922 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:51:58,927 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 15:51:58,927 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:51:58,989 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_aae872a0-c844-48fe-b296-fa81a1e7c58b/bin-2019/uautomizer/witness.graphml [2018-11-18 15:51:58,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:51:58,990 INFO L168 Benchmark]: Toolchain (without parser) took 5303.43 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.5 MB). Free memory was 958.2 MB in the beginning and 1.2 GB in the end (delta: -206.2 MB). Peak memory consumption was 118.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:58,991 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:58,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.27 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 942.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:58,991 INFO L168 Benchmark]: Boogie Preprocessor took 79.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 942.1 MB in the beginning and 1.2 GB in the end (delta: -211.7 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:58,992 INFO L168 Benchmark]: RCFGBuilder took 393.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:58,992 INFO L168 Benchmark]: TraceAbstraction took 4507.34 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 165.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -49.0 MB). Peak memory consumption was 374.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:58,992 INFO L168 Benchmark]: Witness Printer took 77.74 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:58,994 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.27 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 942.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 79.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 942.1 MB in the beginning and 1.2 GB in the end (delta: -211.7 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 393.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4507.34 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 165.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -49.0 MB). Peak memory consumption was 374.1 MB. Max. memory is 11.5 GB. * Witness Printer took 77.74 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 250]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 221]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 152]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 303]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 92]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 172]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 209]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 140]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 120]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 267]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 184]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 369]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 279]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 238]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 291]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 381]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 225]: Loop Invariant Derived loop invariant: ((((1 <= main__c && !(0 == __VERIFIER_assert__cond)) && (((((2 <= main__cp && main__c + 2 <= main__tokenlen) && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) || ((((2 <= main__cp && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)))) || (main__c == 0 && (((((2 <= main__cp && main__c + 2 <= main__tokenlen) && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) || ((((2 <= main__cp && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond))))) && __VERIFIER_assert__cond == 1) || (((((2 <= main__cp && main__cp + 2 <= main__urilen) && main__c == 0) && __VERIFIER_assert__cond == 1) && ((((!(0 == __VERIFIER_assert__cond) && (((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (__VERIFIER_assert__cond == 1 && ((((((!(0 == __VERIFIER_assert__cond) && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) || ((((__VERIFIER_assert__cond == 1 && 1 <= main__cp) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)))) && main__cp < main__urilen - InvariantResult [Line: 257]: Loop Invariant Derived loop invariant: __VERIFIER_assert__cond == 1 && (((1 <= main__c && !(0 == __VERIFIER_assert__cond)) && (((((((((((((((2 <= main__cp && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) || ((((((((((((((2 <= main__cp && main__c + 2 <= main__tokenlen) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)))) || ((((((((((((((((2 <= main__cp && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) || ((((((((((((((2 <= main__cp && main__c + 2 <= main__tokenlen) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && main__cp + 1 < main__urilen) && __VERIFIER_assert__cond == 1) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond))) && main__c == 0)) - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: ((((((__VERIFIER_assert__cond == 1 && __VERIFIER_assert__cond == 1) && 1 <= main__cp) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond)) || ((((((__VERIFIER_assert__cond == 1 && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && 1 <= main__scheme) && !(0 == __VERIFIER_assert__cond))) && main__cp < main__urilen) && __VERIFIER_assert__cond == 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: __VERIFIER_assert__cond == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 87 locations, 18 error locations. SAFE Result, 4.4s OverallTime, 23 OverallIterations, 2 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 1337 SDtfs, 2897 SDslu, 1903 SDs, 0 SdLazy, 1150 SolverSat, 166 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 157 SyntacticMatches, 5 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, 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: 0.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 311 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 685 HoareAnnotationTreeSize, 9 FomulaSimplifications, 326253 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 80271 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 855 NumberOfCodeBlocks, 855 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 829 ConstructedInterpolants, 0 QuantifiedInterpolants, 60398 SizeOfPredicates, 21 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 26 InterpolantComputations, 20 PerfectInterpolantSequences, 9/21 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...