./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ac99a20a7aff68d4303ed37ca9ad8305a1f8cf0d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:54:09,275 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:54:09,276 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:54:09,282 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:54:09,282 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:54:09,283 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:54:09,284 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:54:09,285 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:54:09,286 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:54:09,287 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:54:09,287 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:54:09,287 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:54:09,288 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:54:09,289 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:54:09,289 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:54:09,290 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:54:09,290 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:54:09,291 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:54:09,292 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:54:09,293 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:54:09,294 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:54:09,295 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:54:09,296 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:54:09,296 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:54:09,296 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:54:09,297 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:54:09,298 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:54:09,298 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:54:09,298 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:54:09,299 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:54:09,299 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:54:09,300 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:54:09,300 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:54:09,300 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:54:09,300 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:54:09,301 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:54:09,301 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-18 11:54:09,307 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:54:09,308 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:54:09,308 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:54:09,308 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 11:54:09,308 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:54:09,309 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:54:09,309 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:54:09,309 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:54:09,309 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:54:09,309 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:54:09,309 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:54:09,309 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:54:09,310 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:54:09,310 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:54:09,310 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 11:54:09,310 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:54:09,310 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:54:09,310 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:54:09,310 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:54:09,310 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:54:09,310 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:54:09,311 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:54:09,311 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:54:09,311 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:54:09,311 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:54:09,311 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:54:09,311 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:54:09,311 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:54:09,311 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:54:09,312 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_3c675c80-ebc5-453d-b521-2ece94749bb9/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac99a20a7aff68d4303ed37ca9ad8305a1f8cf0d [2018-11-18 11:54:09,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:54:09,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:54:09,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:54:09,347 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:54:09,347 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:54:09,348 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop_true-termination_true-no-overflow.c [2018-11-18 11:54:09,387 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/data/93577ed77/99d9baaf171a48888768ec112c6e7fb5/FLAG4b382a6e3 [2018-11-18 11:54:09,779 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:54:09,780 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop_true-termination_true-no-overflow.c [2018-11-18 11:54:09,784 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/data/93577ed77/99d9baaf171a48888768ec112c6e7fb5/FLAG4b382a6e3 [2018-11-18 11:54:09,794 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/data/93577ed77/99d9baaf171a48888768ec112c6e7fb5 [2018-11-18 11:54:09,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:54:09,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 11:54:09,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:54:09,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:54:09,800 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:54:09,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d39cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09, skipping insertion in model container [2018-11-18 11:54:09,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:54:09,819 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:54:09,925 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:54:09,927 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:54:09,938 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:54:09,945 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:54:09,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09 WrapperNode [2018-11-18 11:54:09,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:54:09,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:54:09,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:54:09,946 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:54:09,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (1/1) ... [2018-11-18 11:54:09,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:54:09,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:54:09,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:54:09,963 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:54:09,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:54:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:54:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:54:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:54:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 11:54:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:54:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:54:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:54:10,148 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:54:10,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:10 BoogieIcfgContainer [2018-11-18 11:54:10,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:54:10,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:54:10,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:54:10,152 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:54:10,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:54:09" (1/3) ... [2018-11-18 11:54:10,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537dd110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:10, skipping insertion in model container [2018-11-18 11:54:10,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:09" (2/3) ... [2018-11-18 11:54:10,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537dd110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:10, skipping insertion in model container [2018-11-18 11:54:10,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:10" (3/3) ... [2018-11-18 11:54:10,155 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop_true-termination_true-no-overflow.c [2018-11-18 11:54:10,162 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:54:10,168 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-18 11:54:10,180 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-18 11:54:10,203 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:54:10,203 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:54:10,203 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:54:10,203 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:54:10,204 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:54:10,204 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:54:10,204 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:54:10,204 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:54:10,204 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:54:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-18 11:54:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 11:54:10,222 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,222 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,224 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,228 INFO L82 PathProgramCache]: Analyzing trace with hash -2024263192, now seen corresponding path program 1 times [2018-11-18 11:54:10,230 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:54:10,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:54:10,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:54:10,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:54:10,328 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-11-18 11:54:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,344 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2018-11-18 11:54:10,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:54:10,345 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-18 11:54:10,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,351 INFO L225 Difference]: With dead ends: 62 [2018-11-18 11:54:10,351 INFO L226 Difference]: Without dead ends: 29 [2018-11-18 11:54:10,353 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:54:10,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-18 11:54:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-18 11:54:10,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 11:54:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2018-11-18 11:54:10,375 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 10 [2018-11-18 11:54:10,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,375 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2018-11-18 11:54:10,375 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:54:10,376 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-11-18 11:54:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:54:10,376 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,376 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,376 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1672316879, now seen corresponding path program 1 times [2018-11-18 11:54:10,377 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:54:10,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:54:10,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:54:10,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,418 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 3 states. [2018-11-18 11:54:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,456 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2018-11-18 11:54:10,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:54:10,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 11:54:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,457 INFO L225 Difference]: With dead ends: 51 [2018-11-18 11:54:10,457 INFO L226 Difference]: Without dead ends: 50 [2018-11-18 11:54:10,458 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-18 11:54:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 34. [2018-11-18 11:54:10,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 11:54:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-18 11:54:10,462 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 11 [2018-11-18 11:54:10,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,462 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-18 11:54:10,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:54:10,462 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-18 11:54:10,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:54:10,462 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,463 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,463 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1672316912, now seen corresponding path program 1 times [2018-11-18 11:54:10,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:54:10,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:54:10,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:54:10,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,482 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 3 states. [2018-11-18 11:54:10,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,507 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2018-11-18 11:54:10,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:54:10,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 11:54:10,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,507 INFO L225 Difference]: With dead ends: 45 [2018-11-18 11:54:10,507 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 11:54:10,508 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 11:54:10,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2018-11-18 11:54:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 11:54:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2018-11-18 11:54:10,510 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 11 [2018-11-18 11:54:10,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,511 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2018-11-18 11:54:10,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:54:10,511 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2018-11-18 11:54:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 11:54:10,511 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,511 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,511 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,512 INFO L82 PathProgramCache]: Analyzing trace with hash 302215787, now seen corresponding path program 1 times [2018-11-18 11:54:10,512 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,512 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:54:10,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:54:10,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:54:10,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,529 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 3 states. [2018-11-18 11:54:10,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,551 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-11-18 11:54:10,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:54:10,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-18 11:54:10,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,552 INFO L225 Difference]: With dead ends: 58 [2018-11-18 11:54:10,552 INFO L226 Difference]: Without dead ends: 57 [2018-11-18 11:54:10,552 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-18 11:54:10,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 43. [2018-11-18 11:54:10,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 11:54:10,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-11-18 11:54:10,555 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 12 [2018-11-18 11:54:10,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,556 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-11-18 11:54:10,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:54:10,556 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-11-18 11:54:10,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 11:54:10,556 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,556 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,557 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,557 INFO L82 PathProgramCache]: Analyzing trace with hash 302216781, now seen corresponding path program 1 times [2018-11-18 11:54:10,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:54:10,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:54:10,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:54:10,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,588 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 3 states. [2018-11-18 11:54:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,607 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-11-18 11:54:10,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:54:10,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-18 11:54:10,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,608 INFO L225 Difference]: With dead ends: 43 [2018-11-18 11:54:10,608 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 11:54:10,609 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 11:54:10,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-18 11:54:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-18 11:54:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2018-11-18 11:54:10,613 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 12 [2018-11-18 11:54:10,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,613 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2018-11-18 11:54:10,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:54:10,613 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2018-11-18 11:54:10,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 11:54:10,614 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,614 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,616 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1627447504, now seen corresponding path program 1 times [2018-11-18 11:54:10,617 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:54:10,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:54:10,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:54:10,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,648 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand 3 states. [2018-11-18 11:54:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,668 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2018-11-18 11:54:10,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:54:10,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-18 11:54:10,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,669 INFO L225 Difference]: With dead ends: 42 [2018-11-18 11:54:10,669 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 11:54:10,670 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 11:54:10,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 11:54:10,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 11:54:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2018-11-18 11:54:10,673 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 14 [2018-11-18 11:54:10,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,673 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-11-18 11:54:10,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:54:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2018-11-18 11:54:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 11:54:10,674 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,674 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,674 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1088734998, now seen corresponding path program 1 times [2018-11-18 11:54:10,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:54:10,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:54:10,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:54:10,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,701 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand 3 states. [2018-11-18 11:54:10,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,717 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2018-11-18 11:54:10,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:54:10,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 11:54:10,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,719 INFO L225 Difference]: With dead ends: 41 [2018-11-18 11:54:10,719 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 11:54:10,719 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:54:10,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 11:54:10,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 11:54:10,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 11:54:10,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-11-18 11:54:10,722 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 15 [2018-11-18 11:54:10,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,722 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-11-18 11:54:10,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:54:10,723 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-11-18 11:54:10,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 11:54:10,723 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,723 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,723 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,724 INFO L82 PathProgramCache]: Analyzing trace with hash -113098749, now seen corresponding path program 1 times [2018-11-18 11:54:10,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:10,751 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:10,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,797 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:10,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-18 11:54:10,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:54:10,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:54:10,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:10,798 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 4 states. [2018-11-18 11:54:10,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,819 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2018-11-18 11:54:10,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:54:10,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-18 11:54:10,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,820 INFO L225 Difference]: With dead ends: 70 [2018-11-18 11:54:10,820 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 11:54:10,821 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:10,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 11:54:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 46. [2018-11-18 11:54:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-18 11:54:10,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-11-18 11:54:10,825 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 17 [2018-11-18 11:54:10,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,826 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-11-18 11:54:10,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:54:10,826 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-11-18 11:54:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 11:54:10,826 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,826 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,827 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1697684744, now seen corresponding path program 1 times [2018-11-18 11:54:10,827 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:54:10,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:54:10,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:54:10,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:10,852 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 4 states. [2018-11-18 11:54:10,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,878 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-11-18 11:54:10,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:54:10,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-18 11:54:10,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,881 INFO L225 Difference]: With dead ends: 46 [2018-11-18 11:54:10,881 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 11:54:10,881 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:54:10,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 11:54:10,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-18 11:54:10,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 11:54:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2018-11-18 11:54:10,885 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 17 [2018-11-18 11:54:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,886 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2018-11-18 11:54:10,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:54:10,886 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2018-11-18 11:54:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 11:54:10,886 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,886 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,887 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1088619433, now seen corresponding path program 1 times [2018-11-18 11:54:10,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:10,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:10,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:54:10,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:54:10,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:54:10,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:10,928 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 4 states. [2018-11-18 11:54:10,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:10,967 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2018-11-18 11:54:10,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:54:10,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-18 11:54:10,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:10,968 INFO L225 Difference]: With dead ends: 48 [2018-11-18 11:54:10,968 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 11:54:10,969 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:54:10,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 11:54:10,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2018-11-18 11:54:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 11:54:10,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2018-11-18 11:54:10,972 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 18 [2018-11-18 11:54:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:10,973 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2018-11-18 11:54:10,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:54:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2018-11-18 11:54:10,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:54:10,973 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:10,973 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:10,974 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:10,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:10,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1807051700, now seen corresponding path program 1 times [2018-11-18 11:54:10,976 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:10,976 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:10,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:10,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:54:11,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:11,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:54:11,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:54:11,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:54:11,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:11,004 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand 4 states. [2018-11-18 11:54:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:11,046 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2018-11-18 11:54:11,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:54:11,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-18 11:54:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:11,047 INFO L225 Difference]: With dead ends: 70 [2018-11-18 11:54:11,047 INFO L226 Difference]: Without dead ends: 69 [2018-11-18 11:54:11,048 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:54:11,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-11-18 11:54:11,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 47. [2018-11-18 11:54:11,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-18 11:54:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2018-11-18 11:54:11,052 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 20 [2018-11-18 11:54:11,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:11,052 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2018-11-18 11:54:11,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:54:11,052 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-11-18 11:54:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:54:11,053 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,053 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:11,053 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:11,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1807051733, now seen corresponding path program 1 times [2018-11-18 11:54:11,054 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:11,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:11,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:11,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:11,076 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:11,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:11,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:11,114 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:11,114 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-18 11:54:11,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:54:11,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:54:11,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:11,115 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 4 states. [2018-11-18 11:54:11,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:11,129 INFO L93 Difference]: Finished difference Result 82 states and 95 transitions. [2018-11-18 11:54:11,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:54:11,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2018-11-18 11:54:11,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:11,130 INFO L225 Difference]: With dead ends: 82 [2018-11-18 11:54:11,130 INFO L226 Difference]: Without dead ends: 81 [2018-11-18 11:54:11,130 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:54:11,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-11-18 11:54:11,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 67. [2018-11-18 11:54:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-11-18 11:54:11,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions. [2018-11-18 11:54:11,136 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 20 [2018-11-18 11:54:11,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:11,137 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 79 transitions. [2018-11-18 11:54:11,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:54:11,137 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2018-11-18 11:54:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 11:54:11,137 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,137 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:11,137 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:11,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1227948343, now seen corresponding path program 2 times [2018-11-18 11:54:11,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:11,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:11,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:11,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:11,159 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:11,167 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:54:11,175 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 11:54:11,175 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:54:11,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:11,199 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 11:54:11,214 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:11,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-18 11:54:11,214 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:54:11,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:54:11,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:54:11,215 INFO L87 Difference]: Start difference. First operand 67 states and 79 transitions. Second operand 7 states. [2018-11-18 11:54:11,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:11,310 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2018-11-18 11:54:11,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:54:11,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-18 11:54:11,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:11,312 INFO L225 Difference]: With dead ends: 104 [2018-11-18 11:54:11,312 INFO L226 Difference]: Without dead ends: 103 [2018-11-18 11:54:11,312 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:54:11,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-11-18 11:54:11,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 61. [2018-11-18 11:54:11,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-18 11:54:11,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2018-11-18 11:54:11,318 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 23 [2018-11-18 11:54:11,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:11,319 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2018-11-18 11:54:11,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:54:11,319 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2018-11-18 11:54:11,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:54:11,319 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,319 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:11,320 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:11,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1155182080, now seen corresponding path program 1 times [2018-11-18 11:54:11,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:11,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:11,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,321 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:54:11,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:11,339 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:11,339 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:11,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:11,386 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:11,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-18 11:54:11,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:54:11,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:54:11,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:54:11,387 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand 6 states. [2018-11-18 11:54:11,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:11,419 INFO L93 Difference]: Finished difference Result 103 states and 120 transitions. [2018-11-18 11:54:11,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:54:11,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-11-18 11:54:11,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:11,421 INFO L225 Difference]: With dead ends: 103 [2018-11-18 11:54:11,421 INFO L226 Difference]: Without dead ends: 61 [2018-11-18 11:54:11,421 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:54:11,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-18 11:54:11,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2018-11-18 11:54:11,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-18 11:54:11,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2018-11-18 11:54:11,427 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 26 [2018-11-18 11:54:11,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:11,427 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2018-11-18 11:54:11,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:54:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2018-11-18 11:54:11,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:54:11,428 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,428 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:11,428 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:11,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1936373826, now seen corresponding path program 1 times [2018-11-18 11:54:11,429 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:11,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:11,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:11,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:11,461 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:11,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:11,539 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:11,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-11-18 11:54:11,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 11:54:11,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 11:54:11,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:54:11,540 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand 10 states. [2018-11-18 11:54:11,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:11,750 INFO L93 Difference]: Finished difference Result 222 states and 254 transitions. [2018-11-18 11:54:11,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-18 11:54:11,750 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2018-11-18 11:54:11,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:11,751 INFO L225 Difference]: With dead ends: 222 [2018-11-18 11:54:11,751 INFO L226 Difference]: Without dead ends: 221 [2018-11-18 11:54:11,751 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=206, Invalid=394, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:54:11,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-11-18 11:54:11,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 115. [2018-11-18 11:54:11,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-11-18 11:54:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 134 transitions. [2018-11-18 11:54:11,766 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 134 transitions. Word has length 26 [2018-11-18 11:54:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:11,766 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 134 transitions. [2018-11-18 11:54:11,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 11:54:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 134 transitions. [2018-11-18 11:54:11,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 11:54:11,767 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,767 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:11,768 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:11,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,768 INFO L82 PathProgramCache]: Analyzing trace with hash 546249104, now seen corresponding path program 2 times [2018-11-18 11:54:11,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:11,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:11,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:54:11,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:11,791 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:11,799 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:54:11,805 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-18 11:54:11,805 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:54:11,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 11:54:11,830 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:11,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-18 11:54:11,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:54:11,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:54:11,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:54:11,831 INFO L87 Difference]: Start difference. First operand 115 states and 134 transitions. Second operand 7 states. [2018-11-18 11:54:11,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:11,880 INFO L93 Difference]: Finished difference Result 233 states and 272 transitions. [2018-11-18 11:54:11,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:54:11,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2018-11-18 11:54:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:11,881 INFO L225 Difference]: With dead ends: 233 [2018-11-18 11:54:11,881 INFO L226 Difference]: Without dead ends: 232 [2018-11-18 11:54:11,882 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-18 11:54:11,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-11-18 11:54:11,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 70. [2018-11-18 11:54:11,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-18 11:54:11,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2018-11-18 11:54:11,889 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 29 [2018-11-18 11:54:11,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:11,889 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2018-11-18 11:54:11,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:54:11,889 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2018-11-18 11:54:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 11:54:11,890 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:11,890 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:11,891 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:11,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:11,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1525031015, now seen corresponding path program 1 times [2018-11-18 11:54:11,891 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:11,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:11,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,892 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:54:11,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,948 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:54:11,948 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:11,948 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:11,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:11,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:54:11,993 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:11,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-11-18 11:54:11,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 11:54:11,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 11:54:11,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:54:11,993 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand 9 states. [2018-11-18 11:54:12,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:12,127 INFO L93 Difference]: Finished difference Result 186 states and 208 transitions. [2018-11-18 11:54:12,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 11:54:12,128 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 47 [2018-11-18 11:54:12,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:12,129 INFO L225 Difference]: With dead ends: 186 [2018-11-18 11:54:12,129 INFO L226 Difference]: Without dead ends: 185 [2018-11-18 11:54:12,129 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=242, Unknown=0, NotChecked=0, Total=380 [2018-11-18 11:54:12,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2018-11-18 11:54:12,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 76. [2018-11-18 11:54:12,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 11:54:12,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2018-11-18 11:54:12,136 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 47 [2018-11-18 11:54:12,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:12,136 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2018-11-18 11:54:12,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 11:54:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2018-11-18 11:54:12,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 11:54:12,137 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:12,137 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:12,138 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:12,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:12,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1322840547, now seen corresponding path program 2 times [2018-11-18 11:54:12,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:12,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:12,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:54:12,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:54:12,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:12,189 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:12,203 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 11:54:12,222 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 11:54:12,222 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:54:12,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 11:54:12,248 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:12,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-18 11:54:12,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 11:54:12,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 11:54:12,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:54:12,249 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 10 states. [2018-11-18 11:54:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:12,418 INFO L93 Difference]: Finished difference Result 205 states and 229 transitions. [2018-11-18 11:54:12,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 11:54:12,419 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2018-11-18 11:54:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:12,420 INFO L225 Difference]: With dead ends: 205 [2018-11-18 11:54:12,420 INFO L226 Difference]: Without dead ends: 204 [2018-11-18 11:54:12,420 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=196, Invalid=356, Unknown=0, NotChecked=0, Total=552 [2018-11-18 11:54:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-11-18 11:54:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 82. [2018-11-18 11:54:12,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-18 11:54:12,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2018-11-18 11:54:12,429 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 53 [2018-11-18 11:54:12,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:12,429 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2018-11-18 11:54:12,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 11:54:12,429 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2018-11-18 11:54:12,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 11:54:12,430 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:12,430 INFO L375 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:12,430 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:12,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:12,431 INFO L82 PathProgramCache]: Analyzing trace with hash 482946250, now seen corresponding path program 3 times [2018-11-18 11:54:12,431 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:12,431 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:12,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,431 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:54:12,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 11:54:12,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:54:12,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:54:12,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:54:12,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:54:12,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:54:12,464 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 6 states. [2018-11-18 11:54:12,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:12,521 INFO L93 Difference]: Finished difference Result 192 states and 217 transitions. [2018-11-18 11:54:12,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:54:12,522 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-11-18 11:54:12,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:12,523 INFO L225 Difference]: With dead ends: 192 [2018-11-18 11:54:12,523 INFO L226 Difference]: Without dead ends: 135 [2018-11-18 11:54:12,523 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:54:12,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-11-18 11:54:12,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 96. [2018-11-18 11:54:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-18 11:54:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2018-11-18 11:54:12,533 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 56 [2018-11-18 11:54:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:12,534 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2018-11-18 11:54:12,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:54:12,534 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2018-11-18 11:54:12,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 11:54:12,534 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:54:12,534 INFO L375 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:54:12,535 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:54:12,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:54:12,535 INFO L82 PathProgramCache]: Analyzing trace with hash 625652574, now seen corresponding path program 4 times [2018-11-18 11:54:12,535 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:54:12,535 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:54:12,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,536 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:54:12,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:54:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:54:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 11:54:12,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:54:12,613 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:54:12,631 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 11:54:12,646 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-18 11:54:12,646 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 11:54:12,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:54:12,680 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-11-18 11:54:12,696 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:54:12,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4] total 12 [2018-11-18 11:54:12,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 11:54:12,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 11:54:12,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-18 11:54:12,697 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand 13 states. [2018-11-18 11:54:12,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:54:12,898 INFO L93 Difference]: Finished difference Result 207 states and 224 transitions. [2018-11-18 11:54:12,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 11:54:12,898 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2018-11-18 11:54:12,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:54:12,898 INFO L225 Difference]: With dead ends: 207 [2018-11-18 11:54:12,898 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:54:12,899 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=536, Unknown=0, NotChecked=0, Total=812 [2018-11-18 11:54:12,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:54:12,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:54:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:54:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:54:12,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2018-11-18 11:54:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:54:12,900 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:54:12,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 11:54:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:54:12,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:54:12,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:54:12,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:12,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,076 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 126 [2018-11-18 11:54:13,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,312 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2018-11-18 11:54:13,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,319 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:54:13,852 WARN L180 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 36 [2018-11-18 11:54:14,181 WARN L180 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 28 [2018-11-18 11:54:14,284 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 26 [2018-11-18 11:54:14,285 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 11:54:14,285 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:54:14,285 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:54:14,285 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 11:54:14,285 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 37) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 34) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L421 ceAbstractionStarter]: At program point L23-3(lines 23 34) the Hoare annotation is: (let ((.cse1 (<= 0 main_~i~0)) (.cse5 (<= 0 main_~j~0)) (.cse0 (<= main_~n~0 2147483647)) (.cse6 (<= main_~m~0 main_~j~0)) (.cse2 (<= main_~N~0 2147483647)) (.cse3 (<= 0 main_~N~0)) (.cse4 (<= main_~m~0 2147483647))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= main_~i~0 0)) (and .cse5 .cse0 .cse1 .cse6 .cse2 .cse3 (<= main_~j~0 0)) (and (<= main_~N~0 (+ main_~k~0 1)) (and .cse5 .cse0 .cse6 .cse2 .cse3 .cse4) (<= main_~N~0 main_~i~0)))) [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point L28-1(lines 28 30) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point L28-2(line 28) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point L28-3(lines 28 30) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L421 ceAbstractionStarter]: At program point L28-5(lines 28 30) the Hoare annotation is: (let ((.cse0 (and (and (<= 0 main_~j~0) (<= main_~n~0 2147483647) (<= 0 main_~i~0) (<= 0 main_~k~0) (<= main_~N~0 2147483647) (<= 0 main_~N~0) (<= main_~k~0 2147483646)) (<= main_~m~0 2147483647)))) (or (and .cse0 (<= main_~i~0 0)) (and .cse0 (<= main_~N~0 (+ main_~k~0 1)) (<= main_~N~0 (+ main_~i~0 1))))) [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point L28-6(lines 28 30) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-18 11:54:14,286 INFO L425 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point L25-1(lines 25 32) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L421 ceAbstractionStarter]: At program point L25-3(lines 25 32) the Hoare annotation is: (let ((.cse4 (<= 0 main_~j~0)) (.cse5 (<= main_~n~0 2147483647)) (.cse6 (<= 0 main_~i~0)) (.cse7 (<= main_~N~0 2147483647)) (.cse9 (<= main_~i~0 2147483646)) (.cse8 (<= 0 main_~N~0))) (let ((.cse3 (<= main_~N~0 (+ main_~k~0 1))) (.cse0 (<= main_~m~0 2147483647)) (.cse2 (and .cse4 .cse5 .cse6 .cse7 .cse9 .cse8)) (.cse1 (<= main_~j~0 0))) (or (and (and .cse0 .cse1 .cse2) .cse3 (<= main_~N~0 main_~i~0)) (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse0 .cse1 (<= main_~i~0 0)) (and .cse3 (and (and .cse4 .cse5 .cse6 (<= 0 main_~k~0) .cse9 .cse8 (<= main_~k~0 2147483646)) .cse0) (<= main_~N~0 (+ main_~i~0 1))) (and (<= main_~m~0 0) .cse2 .cse1)))) [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 35) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point L25-4(lines 25 32) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 35) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 37) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 37) the Hoare annotation is: true [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2018-11-18 11:54:14,287 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2018-11-18 11:54:14,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:54:14 BoogieIcfgContainer [2018-11-18 11:54:14,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:54:14,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:54:14,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:54:14,297 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:54:14,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:10" (3/4) ... [2018-11-18 11:54:14,300 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:54:14,304 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:54:14,304 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:54:14,307 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 11:54:14,307 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 11:54:14,308 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 11:54:14,308 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 11:54:14,339 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3c675c80-ebc5-453d-b521-2ece94749bb9/bin-2019/uautomizer/witness.graphml [2018-11-18 11:54:14,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:54:14,340 INFO L168 Benchmark]: Toolchain (without parser) took 4543.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -107.9 MB). Peak memory consumption was 77.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:14,341 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:54:14,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.37 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:14,341 INFO L168 Benchmark]: Boogie Preprocessor took 16.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:14,342 INFO L168 Benchmark]: RCFGBuilder took 185.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:14,342 INFO L168 Benchmark]: TraceAbstraction took 4147.79 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 44.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.2 MB). Peak memory consumption was 295.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:14,342 INFO L168 Benchmark]: Witness Printer took 42.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:54:14,344 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.37 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -183.1 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4147.79 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 44.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.2 MB). Peak memory consumption was 295.0 MB. Max. memory is 11.5 GB. * Witness Printer took 42.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((((m <= 2147483647 && j <= 0) && ((((0 <= j && n <= 2147483647) && 0 <= i) && N <= 2147483647) && i <= 2147483646) && 0 <= N) && N <= k + 1) && N <= i) || (((((((0 <= j && n <= 2147483647) && 0 <= i) && N <= 2147483647) && 0 <= N) && m <= 2147483647) && j <= 0) && i <= 0)) || ((N <= k + 1 && ((((((0 <= j && n <= 2147483647) && 0 <= i) && 0 <= k) && i <= 2147483646) && 0 <= N) && k <= 2147483646) && m <= 2147483647) && N <= i + 1)) || ((m <= 0 && ((((0 <= j && n <= 2147483647) && 0 <= i) && N <= 2147483647) && i <= 2147483646) && 0 <= N) && j <= 0) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((0 <= j && n <= 2147483647) && 0 <= i) && 0 <= k) && N <= 2147483647) && 0 <= N) && k <= 2147483646) && m <= 2147483647) && i <= 0) || (((((((((0 <= j && n <= 2147483647) && 0 <= i) && 0 <= k) && N <= 2147483647) && 0 <= N) && k <= 2147483646) && m <= 2147483647) && N <= k + 1) && N <= i + 1) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((((n <= 2147483647 && 0 <= i) && N <= 2147483647) && 0 <= N) && m <= 2147483647) && i <= 0) || ((((((0 <= j && n <= 2147483647) && 0 <= i) && m <= j) && N <= 2147483647) && 0 <= N) && j <= 0)) || ((N <= k + 1 && ((((0 <= j && n <= 2147483647) && m <= j) && N <= 2147483647) && 0 <= N) && m <= 2147483647) && N <= i) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 8 error locations. SAFE Result, 4.0s OverallTime, 20 OverallIterations, 6 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 1.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 475 SDtfs, 1227 SDslu, 899 SDs, 0 SdLazy, 673 SolverSat, 246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 685 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 54 NumberOfFragments, 266 HoareAnnotationTreeSize, 7 FomulaSimplifications, 2973961 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 657913 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 790 NumberOfCodeBlocks, 760 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 761 ConstructedInterpolants, 0 QuantifiedInterpolants, 68037 SizeOfPredicates, 18 NumberOfNonLiveVariables, 670 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 29 InterpolantComputations, 11 PerfectInterpolantSequences, 161/545 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...