./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/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 279fae57395782089eff32ec1396d1726d808c7f ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:56:42,495 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:56:42,496 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:56:42,503 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:56:42,503 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:56:42,504 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:56:42,505 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:56:42,506 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:56:42,507 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:56:42,507 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:56:42,508 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:56:42,508 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:56:42,509 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:56:42,510 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:56:42,510 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:56:42,511 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:56:42,512 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:56:42,513 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:56:42,514 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:56:42,515 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:56:42,516 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:56:42,517 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:56:42,518 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:56:42,518 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:56:42,519 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:56:42,519 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:56:42,520 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:56:42,520 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:56:42,521 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:56:42,522 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:56:42,522 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:56:42,522 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:56:42,522 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:56:42,523 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:56:42,523 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:56:42,524 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:56:42,524 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 08:56:42,533 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:56:42,534 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:56:42,534 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:56:42,534 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 08:56:42,535 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:56:42,535 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:56:42,535 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:56:42,535 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:56:42,535 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:56:42,535 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:56:42,536 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:56:42,536 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:56:42,536 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:56:42,536 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:56:42,536 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:56:42,536 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:56:42,536 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:56:42,536 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:56:42,537 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:56:42,537 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:56:42,537 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:56:42,537 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:56:42,537 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:56:42,537 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:56:42,537 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:56:42,538 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:56:42,538 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:56:42,538 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:56:42,538 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:56:42,538 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_57a26a52-cc86-4866-95ff-1c508ce7d598/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 -> 279fae57395782089eff32ec1396d1726d808c7f [2018-11-10 08:56:42,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:56:42,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:56:42,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:56:42,571 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:56:42,571 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:56:42,572 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/../../sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i [2018-11-10 08:56:42,607 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/data/4d68fc90b/f1418b538aa0488680f073c3d6723e01/FLAGa2daea227 [2018-11-10 08:56:43,008 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:56:43,009 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i [2018-11-10 08:56:43,013 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/data/4d68fc90b/f1418b538aa0488680f073c3d6723e01/FLAGa2daea227 [2018-11-10 08:56:43,022 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/data/4d68fc90b/f1418b538aa0488680f073c3d6723e01 [2018-11-10 08:56:43,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:56:43,024 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 08:56:43,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:56:43,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:56:43,028 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:56:43,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d1fd08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43, skipping insertion in model container [2018-11-10 08:56:43,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:56:43,056 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:56:43,153 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:56:43,158 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:56:43,174 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:56:43,183 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:56:43,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43 WrapperNode [2018-11-10 08:56:43,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:56:43,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:56:43,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:56:43,184 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:56:43,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (1/1) ... [2018-11-10 08:56:43,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:56:43,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:56:43,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:56:43,210 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:56:43,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/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 [2018-11-10 08:56:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:56:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:56:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2018-11-10 08:56:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2018-11-10 08:56:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:56:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 08:56:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 08:56:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2018-11-10 08:56:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 08:56:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2018-11-10 08:56:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 08:56:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:56:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 08:56:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 08:56:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:56:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:56:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 08:56:43,737 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:56:43,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:56:43 BoogieIcfgContainer [2018-11-10 08:56:43,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:56:43,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:56:43,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:56:43,740 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:56:43,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:56:43" (1/3) ... [2018-11-10 08:56:43,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62117f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:56:43, skipping insertion in model container [2018-11-10 08:56:43,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:56:43" (2/3) ... [2018-11-10 08:56:43,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62117f4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:56:43, skipping insertion in model container [2018-11-10 08:56:43,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:56:43" (3/3) ... [2018-11-10 08:56:43,743 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum_false-unreach-call_true-termination.i [2018-11-10 08:56:43,749 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:56:43,754 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:56:43,762 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:56:43,779 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:56:43,779 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:56:43,779 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:56:43,779 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:56:43,779 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:56:43,779 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:56:43,780 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:56:43,780 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:56:43,780 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:56:43,790 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-10 08:56:43,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-10 08:56:43,794 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:43,795 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:43,796 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:43,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:43,799 INFO L82 PathProgramCache]: Analyzing trace with hash 247878258, now seen corresponding path program 1 times [2018-11-10 08:56:43,800 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:43,800 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:43,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:43,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:43,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:56:43,892 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-11-10 08:56:43,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 08:56:43,892 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/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 [2018-11-10 08:56:43,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:56:43,946 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:43,964 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 08:56:43,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:56:43,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:56:43,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 08:56:44,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 08:56:44,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 08:56:44,002 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-11-10 08:56:44,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:44,019 INFO L93 Difference]: Finished difference Result 103 states and 125 transitions. [2018-11-10 08:56:44,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 08:56:44,020 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2018-11-10 08:56:44,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:44,025 INFO L225 Difference]: With dead ends: 103 [2018-11-10 08:56:44,025 INFO L226 Difference]: Without dead ends: 52 [2018-11-10 08:56:44,028 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 08:56:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-10 08:56:44,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-11-10 08:56:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-10 08:56:44,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2018-11-10 08:56:44,056 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 47 [2018-11-10 08:56:44,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:44,056 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2018-11-10 08:56:44,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 08:56:44,056 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2018-11-10 08:56:44,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 08:56:44,059 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:44,059 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:44,059 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:44,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:44,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1621959094, now seen corresponding path program 1 times [2018-11-10 08:56:44,059 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:44,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:44,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:44,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:44,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:44,072 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:44,072 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:44,072 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:44,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:56:44,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-10 08:56:44,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:56:44,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:56:44,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:56:44,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:56:44,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:56:44,157 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand 3 states. [2018-11-10 08:56:44,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:44,172 INFO L93 Difference]: Finished difference Result 94 states and 112 transitions. [2018-11-10 08:56:44,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:56:44,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-11-10 08:56:44,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:44,174 INFO L225 Difference]: With dead ends: 94 [2018-11-10 08:56:44,174 INFO L226 Difference]: Without dead ends: 61 [2018-11-10 08:56:44,175 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:56:44,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-10 08:56:44,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2018-11-10 08:56:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-10 08:56:44,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2018-11-10 08:56:44,183 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 52 [2018-11-10 08:56:44,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:44,183 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2018-11-10 08:56:44,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:56:44,183 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2018-11-10 08:56:44,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-10 08:56:44,184 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:44,184 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:44,185 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:44,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:44,185 INFO L82 PathProgramCache]: Analyzing trace with hash -326511445, now seen corresponding path program 1 times [2018-11-10 08:56:44,185 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:44,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:44,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:44,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:44,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:56:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 08:56:44,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:56:44,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 08:56:44,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 08:56:44,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 08:56:44,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-10 08:56:44,311 INFO L87 Difference]: Start difference. First operand 57 states and 65 transitions. Second operand 9 states. [2018-11-10 08:56:44,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:44,838 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2018-11-10 08:56:44,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 08:56:44,839 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2018-11-10 08:56:44,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:44,840 INFO L225 Difference]: With dead ends: 101 [2018-11-10 08:56:44,841 INFO L226 Difference]: Without dead ends: 97 [2018-11-10 08:56:44,841 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-10 08:56:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-11-10 08:56:44,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2018-11-10 08:56:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-10 08:56:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2018-11-10 08:56:44,851 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 52 [2018-11-10 08:56:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:44,852 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2018-11-10 08:56:44,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 08:56:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2018-11-10 08:56:44,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-10 08:56:44,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:44,854 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:44,854 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:44,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:44,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1935572298, now seen corresponding path program 1 times [2018-11-10 08:56:44,854 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:44,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:44,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:44,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:44,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:44,873 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:44,873 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:44,873 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:44,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:56:44,913 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:44,936 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-10 08:56:44,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:56:44,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:56:44,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 08:56:44,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 08:56:44,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 08:56:44,954 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand 4 states. [2018-11-10 08:56:45,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:45,030 INFO L93 Difference]: Finished difference Result 146 states and 174 transitions. [2018-11-10 08:56:45,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 08:56:45,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-11-10 08:56:45,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:45,031 INFO L225 Difference]: With dead ends: 146 [2018-11-10 08:56:45,032 INFO L226 Difference]: Without dead ends: 83 [2018-11-10 08:56:45,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 08:56:45,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-10 08:56:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2018-11-10 08:56:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-11-10 08:56:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2018-11-10 08:56:45,042 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 58 [2018-11-10 08:56:45,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:45,042 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2018-11-10 08:56:45,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 08:56:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2018-11-10 08:56:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-11-10 08:56:45,044 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:45,044 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:45,044 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:45,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:45,044 INFO L82 PathProgramCache]: Analyzing trace with hash 930251109, now seen corresponding path program 1 times [2018-11-10 08:56:45,044 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:45,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:45,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:45,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,061 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:45,061 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:45,061 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:45,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:56:45,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:45,145 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-10 08:56:45,169 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-10 08:56:45,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-11-10 08:56:45,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:56:45,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:56:45,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:56:45,171 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand 5 states. [2018-11-10 08:56:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:45,276 INFO L93 Difference]: Finished difference Result 151 states and 179 transitions. [2018-11-10 08:56:45,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 08:56:45,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2018-11-10 08:56:45,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:45,278 INFO L225 Difference]: With dead ends: 151 [2018-11-10 08:56:45,278 INFO L226 Difference]: Without dead ends: 88 [2018-11-10 08:56:45,278 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:56:45,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-10 08:56:45,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2018-11-10 08:56:45,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-10 08:56:45,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 99 transitions. [2018-11-10 08:56:45,288 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 99 transitions. Word has length 63 [2018-11-10 08:56:45,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:45,288 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 99 transitions. [2018-11-10 08:56:45,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:56:45,288 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 99 transitions. [2018-11-10 08:56:45,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-11-10 08:56:45,291 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:45,291 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:45,293 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:45,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:45,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1747998742, now seen corresponding path program 2 times [2018-11-10 08:56:45,293 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:45,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:45,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:45,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,308 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:45,309 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:45,309 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:45,319 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 08:56:45,349 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 08:56:45,349 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 08:56:45,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:45,373 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-10 08:56:45,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:56:45,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:56:45,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 08:56:45,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 08:56:45,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 08:56:45,389 INFO L87 Difference]: Start difference. First operand 85 states and 99 transitions. Second operand 4 states. [2018-11-10 08:56:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:45,425 INFO L93 Difference]: Finished difference Result 148 states and 184 transitions. [2018-11-10 08:56:45,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 08:56:45,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2018-11-10 08:56:45,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:45,427 INFO L225 Difference]: With dead ends: 148 [2018-11-10 08:56:45,427 INFO L226 Difference]: Without dead ends: 89 [2018-11-10 08:56:45,427 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 08:56:45,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2018-11-10 08:56:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2018-11-10 08:56:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-11-10 08:56:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 102 transitions. [2018-11-10 08:56:45,433 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 102 transitions. Word has length 68 [2018-11-10 08:56:45,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:45,433 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 102 transitions. [2018-11-10 08:56:45,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 08:56:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 102 transitions. [2018-11-10 08:56:45,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-11-10 08:56:45,435 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:45,435 INFO L375 BasicCegarLoop]: trace histogram [7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:45,435 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:45,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:45,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1382844111, now seen corresponding path program 1 times [2018-11-10 08:56:45,436 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:45,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:45,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,438 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:56:45,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,451 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:45,451 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:45,452 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:45,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:56:45,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-10 08:56:45,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-10 08:56:45,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-11-10 08:56:45,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:56:45,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:56:45,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:56:45,543 INFO L87 Difference]: Start difference. First operand 88 states and 102 transitions. Second operand 5 states. [2018-11-10 08:56:45,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:45,587 INFO L93 Difference]: Finished difference Result 155 states and 191 transitions. [2018-11-10 08:56:45,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 08:56:45,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2018-11-10 08:56:45,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:45,588 INFO L225 Difference]: With dead ends: 155 [2018-11-10 08:56:45,588 INFO L226 Difference]: Without dead ends: 93 [2018-11-10 08:56:45,589 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:56:45,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-11-10 08:56:45,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2018-11-10 08:56:45,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-11-10 08:56:45,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2018-11-10 08:56:45,595 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 80 [2018-11-10 08:56:45,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:45,596 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2018-11-10 08:56:45,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:56:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2018-11-10 08:56:45,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-10 08:56:45,597 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:45,598 INFO L375 BasicCegarLoop]: trace histogram [10, 7, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:45,598 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:45,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:45,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1454192136, now seen corresponding path program 2 times [2018-11-10 08:56:45,598 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:45,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:45,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:45,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,609 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:45,609 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:45,609 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:45,621 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 08:56:45,643 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 08:56:45,643 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 08:56:45,645 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:45,675 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-10 08:56:45,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:56:45,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:56:45,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 08:56:45,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 08:56:45,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 08:56:45,692 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand 4 states. [2018-11-10 08:56:45,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:45,723 INFO L93 Difference]: Finished difference Result 136 states and 157 transitions. [2018-11-10 08:56:45,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 08:56:45,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-11-10 08:56:45,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:45,724 INFO L225 Difference]: With dead ends: 136 [2018-11-10 08:56:45,724 INFO L226 Difference]: Without dead ends: 104 [2018-11-10 08:56:45,725 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 08:56:45,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-10 08:56:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 96. [2018-11-10 08:56:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-10 08:56:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2018-11-10 08:56:45,730 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 92 [2018-11-10 08:56:45,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:45,730 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2018-11-10 08:56:45,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 08:56:45,730 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2018-11-10 08:56:45,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-10 08:56:45,731 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:45,731 INFO L375 BasicCegarLoop]: trace histogram [10, 7, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:45,731 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:45,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:45,732 INFO L82 PathProgramCache]: Analyzing trace with hash 506200480, now seen corresponding path program 1 times [2018-11-10 08:56:45,732 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:45,732 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:45,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,733 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:56:45,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,745 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:45,745 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:45,745 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:45,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:56:45,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:45,849 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 96 proven. 9 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-11-10 08:56:45,864 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-10 08:56:45,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-11-10 08:56:45,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 08:56:45,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 08:56:45,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-10 08:56:45,865 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 9 states. [2018-11-10 08:56:45,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:45,934 INFO L93 Difference]: Finished difference Result 213 states and 247 transitions. [2018-11-10 08:56:45,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 08:56:45,936 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2018-11-10 08:56:45,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:45,938 INFO L225 Difference]: With dead ends: 213 [2018-11-10 08:56:45,938 INFO L226 Difference]: Without dead ends: 104 [2018-11-10 08:56:45,938 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-11-10 08:56:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2018-11-10 08:56:45,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2018-11-10 08:56:45,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-11-10 08:56:45,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2018-11-10 08:56:45,943 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 98 [2018-11-10 08:56:45,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:45,943 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2018-11-10 08:56:45,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 08:56:45,944 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2018-11-10 08:56:45,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-10 08:56:45,944 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:45,945 INFO L375 BasicCegarLoop]: trace histogram [10, 7, 7, 6, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:45,945 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:45,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:45,945 INFO L82 PathProgramCache]: Analyzing trace with hash -987470513, now seen corresponding path program 2 times [2018-11-10 08:56:45,945 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:45,945 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:45,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:45,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:45,957 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:45,957 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:45,957 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:45,972 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 08:56:45,997 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 08:56:45,997 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 08:56:45,998 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 73 proven. 20 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-10 08:56:46,056 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-10 08:56:46,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-11-10 08:56:46,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 08:56:46,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 08:56:46,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-10 08:56:46,056 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 9 states. [2018-11-10 08:56:46,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:46,114 INFO L93 Difference]: Finished difference Result 171 states and 200 transitions. [2018-11-10 08:56:46,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 08:56:46,115 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2018-11-10 08:56:46,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:46,116 INFO L225 Difference]: With dead ends: 171 [2018-11-10 08:56:46,116 INFO L226 Difference]: Without dead ends: 109 [2018-11-10 08:56:46,117 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-10 08:56:46,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-11-10 08:56:46,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2018-11-10 08:56:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2018-11-10 08:56:46,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2018-11-10 08:56:46,124 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 103 [2018-11-10 08:56:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:46,124 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2018-11-10 08:56:46,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 08:56:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2018-11-10 08:56:46,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-11-10 08:56:46,126 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:46,126 INFO L375 BasicCegarLoop]: trace histogram [12, 9, 9, 8, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:46,126 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:46,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:46,126 INFO L82 PathProgramCache]: Analyzing trace with hash -779340999, now seen corresponding path program 3 times [2018-11-10 08:56:46,126 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:46,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:46,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:46,127 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:56:46,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:46,134 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:46,134 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:46,134 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:46,142 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 08:56:46,162 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-10 08:56:46,163 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 08:56:46,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 117 proven. 14 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-10 08:56:46,212 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-10 08:56:46,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-11-10 08:56:46,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 08:56:46,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 08:56:46,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:56:46,213 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 8 states. [2018-11-10 08:56:46,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:46,266 INFO L93 Difference]: Finished difference Result 159 states and 180 transitions. [2018-11-10 08:56:46,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 08:56:46,267 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 111 [2018-11-10 08:56:46,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:46,267 INFO L225 Difference]: With dead ends: 159 [2018-11-10 08:56:46,268 INFO L226 Difference]: Without dead ends: 124 [2018-11-10 08:56:46,268 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-10 08:56:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-11-10 08:56:46,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 116. [2018-11-10 08:56:46,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-11-10 08:56:46,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 130 transitions. [2018-11-10 08:56:46,273 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 130 transitions. Word has length 111 [2018-11-10 08:56:46,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:46,273 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 130 transitions. [2018-11-10 08:56:46,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 08:56:46,273 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 130 transitions. [2018-11-10 08:56:46,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-11-10 08:56:46,274 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:46,274 INFO L375 BasicCegarLoop]: trace histogram [12, 9, 9, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:46,275 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:46,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:46,275 INFO L82 PathProgramCache]: Analyzing trace with hash -258676463, now seen corresponding path program 4 times [2018-11-10 08:56:46,275 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:46,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:46,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:46,276 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:56:46,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:46,280 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:46,280 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:46,280 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:46,289 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-10 08:56:46,310 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-10 08:56:46,310 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 08:56:46,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:56:46,385 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 165 proven. 21 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-11-10 08:56:46,401 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-11-10 08:56:46,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2018-11-10 08:56:46,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 08:56:46,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 08:56:46,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-10 08:56:46,402 INFO L87 Difference]: Start difference. First operand 116 states and 130 transitions. Second operand 11 states. [2018-11-10 08:56:46,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:56:46,528 INFO L93 Difference]: Finished difference Result 294 states and 341 transitions. [2018-11-10 08:56:46,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 08:56:46,528 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 117 [2018-11-10 08:56:46,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:56:46,529 INFO L225 Difference]: With dead ends: 294 [2018-11-10 08:56:46,529 INFO L226 Difference]: Without dead ends: 209 [2018-11-10 08:56:46,529 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2018-11-10 08:56:46,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2018-11-10 08:56:46,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 201. [2018-11-10 08:56:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-11-10 08:56:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 227 transitions. [2018-11-10 08:56:46,537 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 227 transitions. Word has length 117 [2018-11-10 08:56:46,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:56:46,537 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 227 transitions. [2018-11-10 08:56:46,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 08:56:46,538 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 227 transitions. [2018-11-10 08:56:46,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-10 08:56:46,539 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:56:46,539 INFO L375 BasicCegarLoop]: trace histogram [12, 9, 9, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:56:46,539 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:56:46,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:56:46,540 INFO L82 PathProgramCache]: Analyzing trace with hash 467515729, now seen corresponding path program 1 times [2018-11-10 08:56:46,540 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:56:46,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:56:46,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:46,540 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:56:46,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:56:46,547 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 08:56:46,548 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 08:56:46,548 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 08:56:46,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:56:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:56:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:56:46,738 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 08:56:46,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:56:46 BoogieIcfgContainer [2018-11-10 08:56:46,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:56:46,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:56:46,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:56:46,797 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:56:46,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:56:43" (3/4) ... [2018-11-10 08:56:46,799 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 08:56:46,864 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_57a26a52-cc86-4866-95ff-1c508ce7d598/bin-2019/uautomizer/witness.graphml [2018-11-10 08:56:46,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:56:46,865 INFO L168 Benchmark]: Toolchain (without parser) took 3841.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 222.8 MB). Free memory was 960.2 MB in the beginning and 940.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 242.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:56:46,866 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. [2018-11-10 08:56:46,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.53 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:56:46,867 INFO L168 Benchmark]: Boogie Preprocessor took 26.08 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:56:46,867 INFO L168 Benchmark]: RCFGBuilder took 527.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:56:46,867 INFO L168 Benchmark]: TraceAbstraction took 3058.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 950.0 MB in the end (delta: 187.6 MB). Peak memory consumption was 247.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:56:46,868 INFO L168 Benchmark]: Witness Printer took 67.97 ms. Allocated memory is still 1.3 GB. Free memory was 950.0 MB in the beginning and 940.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2018-11-10 08:56:46,872 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 158.53 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.08 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 527.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3058.36 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 950.0 MB in the end (delta: 187.6 MB). Peak memory consumption was 247.9 MB. Max. memory is 11.5 GB. * Witness Printer took 67.97 ms. Allocated memory is still 1.3 GB. Free memory was 950.0 MB in the beginning and 940.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 53]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] int N; VAL [\old(N)=9, N=0] [L32] N = __VERIFIER_nondet_int() [L33] COND TRUE N > 1 VAL [\old(N)=0, N=3] [L34] FCALL int x[N]; VAL [\old(N)=0, N=3, x={11:0}] [L35] CALL init_nondet(x) VAL [\old(N)=0, N=3, x={11:0}] [L6] int i; [L7] i = 0 VAL [\old(N)=0, i=0, N=3, x={11:0}, x={11:0}] [L7] COND TRUE i < N [L8] FCALL x[i] = __VERIFIER_nondet_int() VAL [\old(N)=0, __VERIFIER_nondet_int()=-2147483648, i=0, N=3, x={11:0}, x={11:0}] [L7] i++ VAL [\old(N)=0, i=1, N=3, x={11:0}, x={11:0}] [L7] COND TRUE i < N [L8] FCALL x[i] = __VERIFIER_nondet_int() VAL [\old(N)=0, __VERIFIER_nondet_int()=-2147483647, i=1, N=3, x={11:0}, x={11:0}] [L7] i++ VAL [\old(N)=0, i=2, N=3, x={11:0}, x={11:0}] [L7] COND TRUE i < N [L8] FCALL x[i] = __VERIFIER_nondet_int() VAL [\old(N)=0, __VERIFIER_nondet_int()=0, i=2, N=3, x={11:0}, x={11:0}] [L7] i++ VAL [\old(N)=0, i=3, N=3, x={11:0}, x={11:0}] [L7] COND FALSE, RET !(i < N) VAL [\old(N)=0, i=3, N=3, x={11:0}, x={11:0}] [L35] init_nondet(x) VAL [\old(N)=0, N=3, x={11:0}] [L36] int temp; [L37] int ret; [L38] int ret2; [L39] int ret5; VAL [\old(N)=0, N=3, x={11:0}] [L41] CALL, EXPR rangesum(x) VAL [\old(N)=0, N=3, x={11:0}] [L14] int i; [L15] long long ret; [L16] ret = 0 [L17] int cnt = 0; [L18] i = 0 VAL [\old(N)=0, cnt=0, i=0, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i < N VAL [\old(N)=0, cnt=0, i=0, N=3, ret=0, x={11:0}, x={11:0}] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, cnt=0, i=0, N=3, ret=0, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i < N VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i < N VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L19] COND TRUE i > N/2 VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L20] EXPR, FCALL x[i] VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}, x[i]=0] [L20] ret = ret + x[i] [L21] cnt = cnt + 1 VAL [\old(N)=0, cnt=1, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=1, i=3, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i < N) VAL [\old(N)=0, cnt=1, i=3, N=3, ret=0, x={11:0}, x={11:0}] [L24] COND TRUE cnt !=0 [L25] RET return ret / cnt; VAL [\old(N)=0, \result=0, cnt=1, i=3, N=3, ret=0, x={11:0}, x={11:0}] [L41] EXPR rangesum(x) VAL [\old(N)=0, N=3, rangesum(x)=0, x={11:0}] [L41] ret = rangesum(x) [L43] EXPR, FCALL x[0] VAL [\old(N)=0, N=3, ret=0, x={11:0}, x[0]=-2147483648] [L43] temp=x[0] [L43] EXPR, FCALL x[1] VAL [\old(N)=0, N=3, ret=0, temp=-2147483648, x={11:0}, x[1]=-2147483647] [L43] FCALL x[0] = x[1] VAL [\old(N)=0, N=3, ret=0, temp=-2147483648, x={11:0}, x[1]=-2147483647] [L43] FCALL x[1] = temp VAL [\old(N)=0, N=3, ret=0, temp=-2147483648, x={11:0}] [L44] CALL, EXPR rangesum(x) VAL [\old(N)=0, N=3, x={11:0}] [L14] int i; [L15] long long ret; [L16] ret = 0 [L17] int cnt = 0; [L18] i = 0 VAL [\old(N)=0, cnt=0, i=0, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i < N VAL [\old(N)=0, cnt=0, i=0, N=3, ret=0, x={11:0}, x={11:0}] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, cnt=0, i=0, N=3, ret=0, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i < N VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i < N VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L19] COND TRUE i > N/2 VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L20] EXPR, FCALL x[i] VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}, x[i]=0] [L20] ret = ret + x[i] [L21] cnt = cnt + 1 VAL [\old(N)=0, cnt=1, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=1, i=3, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND FALSE !(i < N) VAL [\old(N)=0, cnt=1, i=3, N=3, ret=0, x={11:0}, x={11:0}] [L24] COND TRUE cnt !=0 [L25] RET return ret / cnt; VAL [\old(N)=0, \result=0, cnt=1, i=3, N=3, ret=0, x={11:0}, x={11:0}] [L44] EXPR rangesum(x) VAL [\old(N)=0, N=3, rangesum(x)=0, ret=0, temp=-2147483648, x={11:0}] [L44] ret2 = rangesum(x) [L45] EXPR, FCALL x[0] VAL [\old(N)=0, N=3, ret=0, ret2=0, temp=-2147483648, x={11:0}, x[0]=-2147483647] [L45] temp=x[0] [L46] int i =0 ; VAL [\old(N)=0, i=0, N=3, ret=0, ret2=0, temp=-2147483647, x={11:0}] [L46] COND TRUE i N/2) VAL [\old(N)=0, cnt=0, i=0, N=3, ret=0, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i < N VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, cnt=0, i=1, N=3, ret=0, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L18] COND TRUE i < N VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L19] COND TRUE i > N/2 VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}] [L20] EXPR, FCALL x[i] VAL [\old(N)=0, cnt=0, i=2, N=3, ret=0, x={11:0}, x={11:0}, x[i]=-2147483647] [L20] ret = ret + x[i] [L21] cnt = cnt + 1 VAL [\old(N)=0, cnt=1, i=2, N=3, ret=-2147483647, x={11:0}, x={11:0}] [L18] i++ VAL [\old(N)=0, cnt=1, i=3, N=3, ret=-2147483647, x={11:0}, x={11:0}] [L18] COND FALSE !(i < N) VAL [\old(N)=0, cnt=1, i=3, N=3, ret=-2147483647, x={11:0}, x={11:0}] [L24] COND TRUE cnt !=0 [L25] RET return ret / cnt; VAL [\old(N)=0, \result=-2147483647, cnt=1, i=3, N=3, ret=-2147483647, x={11:0}, x={11:0}] [L50] EXPR rangesum(x) VAL [\old(N)=0, i=2, N=3, rangesum(x)=-2147483647, ret=0, ret2=0, temp=-2147483647, x={11:0}] [L50] ret5 = rangesum(x) [L52] COND TRUE ret != ret2 || ret !=ret5 VAL [\old(N)=0, i=2, N=3, ret=0, ret2=0, ret5=-2147483647, temp=-2147483647, x={11:0}] [L53] __VERIFIER_error() VAL [\old(N)=0, i=2, N=3, ret=0, ret2=0, ret5=-2147483647, temp=-2147483647, x={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 59 locations, 1 error locations. UNSAFE Result, 3.0s OverallTime, 13 OverallIterations, 12 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 636 SDtfs, 493 SDslu, 1430 SDs, 0 SdLazy, 841 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 895 GetRequests, 831 SyntacticMatches, 9 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 63 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1109 NumberOfCodeBlocks, 1069 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 929 ConstructedInterpolants, 0 QuantifiedInterpolants, 205309 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2260 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 1102/1170 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...