./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd13eb8db6a6bb215c2d42af70a6b175025c5d6b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd13eb8db6a6bb215c2d42af70a6b175025c5d6b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 02:43:41,696 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 02:43:41,697 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 02:43:41,703 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 02:43:41,703 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 02:43:41,704 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 02:43:41,704 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 02:43:41,705 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 02:43:41,706 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 02:43:41,707 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 02:43:41,707 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 02:43:41,707 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 02:43:41,708 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 02:43:41,708 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 02:43:41,709 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 02:43:41,709 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 02:43:41,710 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 02:43:41,711 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 02:43:41,712 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 02:43:41,713 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 02:43:41,713 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 02:43:41,714 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 02:43:41,715 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 02:43:41,715 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 02:43:41,715 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 02:43:41,716 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 02:43:41,716 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 02:43:41,717 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 02:43:41,717 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 02:43:41,718 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 02:43:41,718 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 02:43:41,718 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 02:43:41,719 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 02:43:41,719 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 02:43:41,719 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 02:43:41,720 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 02:43:41,720 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 02:43:41,727 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 02:43:41,727 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 02:43:41,728 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 02:43:41,728 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 02:43:41,728 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 02:43:41,728 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 02:43:41,728 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 02:43:41,728 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 02:43:41,728 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 02:43:41,729 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 02:43:41,729 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 02:43:41,729 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 02:43:41,729 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 02:43:41,729 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 02:43:41,729 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 02:43:41,730 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 02:43:41,731 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 02:43:41,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 02:43:41,731 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 02:43:41,731 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 02:43:41,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 02:43:41,731 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 02:43:41,731 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 02:43:41,731 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 02:43:41,732 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 02:43:41,732 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 02:43:41,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 02:43:41,732 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 02:43:41,732 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd13eb8db6a6bb215c2d42af70a6b175025c5d6b [2018-12-03 02:43:41,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 02:43:41,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 02:43:41,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 02:43:41,759 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 02:43:41,760 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 02:43:41,760 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/../../sv-benchmarks/c/pthread/stack_true-unreach-call.i [2018-12-03 02:43:41,797 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data/a8fa366b3/ed22cd5d5e06466abbff8dac718e86dd/FLAGbb1726b37 [2018-12-03 02:43:42,176 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 02:43:42,176 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/sv-benchmarks/c/pthread/stack_true-unreach-call.i [2018-12-03 02:43:42,185 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data/a8fa366b3/ed22cd5d5e06466abbff8dac718e86dd/FLAGbb1726b37 [2018-12-03 02:43:42,528 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data/a8fa366b3/ed22cd5d5e06466abbff8dac718e86dd [2018-12-03 02:43:42,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 02:43:42,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 02:43:42,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 02:43:42,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 02:43:42,534 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 02:43:42,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628262cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42, skipping insertion in model container [2018-12-03 02:43:42,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 02:43:42,569 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 02:43:42,829 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 02:43:42,838 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 02:43:42,869 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 02:43:42,941 INFO L195 MainTranslator]: Completed translation [2018-12-03 02:43:42,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42 WrapperNode [2018-12-03 02:43:42,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 02:43:42,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 02:43:42,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 02:43:42,942 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 02:43:42,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 02:43:42,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 02:43:42,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 02:43:42,972 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 02:43:42,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... [2018-12-03 02:43:42,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 02:43:42,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 02:43:42,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 02:43:42,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 02:43:42,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 02:43:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-12-03 02:43:43,023 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-12-03 02:43:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-12-03 02:43:43,024 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-12-03 02:43:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 02:43:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 02:43:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 02:43:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 02:43:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-03 02:43:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-03 02:43:43,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 02:43:43,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 02:43:43,025 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-03 02:43:43,236 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 02:43:43,236 INFO L280 CfgBuilder]: Removed 22 assue(true) statements. [2018-12-03 02:43:43,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:43:43 BoogieIcfgContainer [2018-12-03 02:43:43,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 02:43:43,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 02:43:43,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 02:43:43,239 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 02:43:43,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 02:43:42" (1/3) ... [2018-12-03 02:43:43,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e35c77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 02:43:43, skipping insertion in model container [2018-12-03 02:43:43,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:42" (2/3) ... [2018-12-03 02:43:43,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e35c77a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 02:43:43, skipping insertion in model container [2018-12-03 02:43:43,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:43:43" (3/3) ... [2018-12-03 02:43:43,241 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_true-unreach-call.i [2018-12-03 02:43:43,265 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,265 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,265 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,265 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,266 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,266 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,266 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,266 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,266 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,267 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,268 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,268 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,268 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,269 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,269 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,269 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,269 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,269 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,269 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,269 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,269 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,270 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,270 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,270 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,270 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,270 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,270 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,270 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,271 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,271 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,271 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,271 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,271 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,271 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,271 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,272 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,272 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,272 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,272 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,272 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,272 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,273 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,273 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,273 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,273 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,273 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,273 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,274 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,274 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,274 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,274 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,274 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,275 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,275 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,275 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,275 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,276 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,276 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,276 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,276 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,276 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,276 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,277 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,278 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,278 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,278 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,278 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,278 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,278 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,278 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,279 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,279 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,279 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,279 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,279 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,279 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,280 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,281 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,281 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,281 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,281 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,281 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,281 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,282 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,282 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,282 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,282 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,282 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,282 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,283 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,283 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,283 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,283 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,283 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,284 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,284 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,284 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,284 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,284 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:43,295 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-03 02:43:43,295 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 02:43:43,300 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-03 02:43:43,310 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-03 02:43:43,326 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 02:43:43,326 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 02:43:43,326 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 02:43:43,326 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 02:43:43,326 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 02:43:43,326 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 02:43:43,326 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 02:43:43,326 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 02:43:43,333 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 126places, 134 transitions [2018-12-03 02:43:43,440 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5572 states. [2018-12-03 02:43:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 5572 states. [2018-12-03 02:43:43,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-03 02:43:43,457 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:43,458 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:43,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:43,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:43,463 INFO L82 PathProgramCache]: Analyzing trace with hash 89899501, now seen corresponding path program 1 times [2018-12-03 02:43:43,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:43:43,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:43,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:43,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:43,502 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:43:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:43,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:43,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 02:43:43,614 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:43:43,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 02:43:43,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 02:43:43,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:43,627 INFO L87 Difference]: Start difference. First operand 5572 states. Second operand 3 states. [2018-12-03 02:43:43,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:43,723 INFO L93 Difference]: Finished difference Result 8083 states and 21427 transitions. [2018-12-03 02:43:43,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 02:43:43,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-03 02:43:43,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:43,755 INFO L225 Difference]: With dead ends: 8083 [2018-12-03 02:43:43,755 INFO L226 Difference]: Without dead ends: 7822 [2018-12-03 02:43:43,756 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:43,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7822 states. [2018-12-03 02:43:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7822 to 7534. [2018-12-03 02:43:43,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7534 states. [2018-12-03 02:43:43,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7534 states to 7534 states and 20177 transitions. [2018-12-03 02:43:43,933 INFO L78 Accepts]: Start accepts. Automaton has 7534 states and 20177 transitions. Word has length 47 [2018-12-03 02:43:43,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:43,934 INFO L480 AbstractCegarLoop]: Abstraction has 7534 states and 20177 transitions. [2018-12-03 02:43:43,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 02:43:43,934 INFO L276 IsEmpty]: Start isEmpty. Operand 7534 states and 20177 transitions. [2018-12-03 02:43:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-03 02:43:43,936 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:43,936 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:43,936 INFO L423 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:43,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:43,937 INFO L82 PathProgramCache]: Analyzing trace with hash 867818314, now seen corresponding path program 1 times [2018-12-03 02:43:43,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:43:43,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:43,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:43,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:43,940 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:43:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:43,988 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:43,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 02:43:43,988 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:43:43,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 02:43:43,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 02:43:43,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 02:43:43,989 INFO L87 Difference]: Start difference. First operand 7534 states and 20177 transitions. Second operand 4 states. [2018-12-03 02:43:44,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:44,075 INFO L93 Difference]: Finished difference Result 11071 states and 29552 transitions. [2018-12-03 02:43:44,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 02:43:44,076 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2018-12-03 02:43:44,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:44,101 INFO L225 Difference]: With dead ends: 11071 [2018-12-03 02:43:44,101 INFO L226 Difference]: Without dead ends: 11071 [2018-12-03 02:43:44,102 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 02:43:44,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11071 states. [2018-12-03 02:43:44,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11071 to 8101. [2018-12-03 02:43:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8101 states. [2018-12-03 02:43:44,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8101 states to 8101 states and 21689 transitions. [2018-12-03 02:43:44,252 INFO L78 Accepts]: Start accepts. Automaton has 8101 states and 21689 transitions. Word has length 57 [2018-12-03 02:43:44,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:44,252 INFO L480 AbstractCegarLoop]: Abstraction has 8101 states and 21689 transitions. [2018-12-03 02:43:44,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 02:43:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 8101 states and 21689 transitions. [2018-12-03 02:43:44,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-12-03 02:43:44,256 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:44,256 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:44,256 INFO L423 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:44,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:44,257 INFO L82 PathProgramCache]: Analyzing trace with hash -234825026, now seen corresponding path program 1 times [2018-12-03 02:43:44,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:43:44,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:44,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:44,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:44,259 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:43:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:44,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:44,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 02:43:44,303 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:43:44,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 02:43:44,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 02:43:44,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:44,304 INFO L87 Difference]: Start difference. First operand 8101 states and 21689 transitions. Second operand 3 states. [2018-12-03 02:43:44,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:44,331 INFO L93 Difference]: Finished difference Result 3604 states and 9092 transitions. [2018-12-03 02:43:44,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 02:43:44,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2018-12-03 02:43:44,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:44,340 INFO L225 Difference]: With dead ends: 3604 [2018-12-03 02:43:44,340 INFO L226 Difference]: Without dead ends: 3604 [2018-12-03 02:43:44,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2018-12-03 02:43:44,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 3316. [2018-12-03 02:43:44,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3316 states. [2018-12-03 02:43:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 8357 transitions. [2018-12-03 02:43:44,381 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 8357 transitions. Word has length 72 [2018-12-03 02:43:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:44,382 INFO L480 AbstractCegarLoop]: Abstraction has 3316 states and 8357 transitions. [2018-12-03 02:43:44,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 02:43:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 8357 transitions. [2018-12-03 02:43:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-03 02:43:44,385 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:44,385 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:44,385 INFO L423 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:44,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:44,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1067901449, now seen corresponding path program 1 times [2018-12-03 02:43:44,386 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:43:44,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:44,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:44,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:44,387 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:43:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:44,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:44,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 02:43:44,419 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 02:43:44,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 02:43:44,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 02:43:44,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:44,420 INFO L87 Difference]: Start difference. First operand 3316 states and 8357 transitions. Second operand 3 states. [2018-12-03 02:43:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:44,452 INFO L93 Difference]: Finished difference Result 4231 states and 10629 transitions. [2018-12-03 02:43:44,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 02:43:44,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2018-12-03 02:43:44,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:44,460 INFO L225 Difference]: With dead ends: 4231 [2018-12-03 02:43:44,460 INFO L226 Difference]: Without dead ends: 4231 [2018-12-03 02:43:44,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:44,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2018-12-03 02:43:44,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 3406. [2018-12-03 02:43:44,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3406 states. [2018-12-03 02:43:44,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 8558 transitions. [2018-12-03 02:43:44,515 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 8558 transitions. Word has length 79 [2018-12-03 02:43:44,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:44,516 INFO L480 AbstractCegarLoop]: Abstraction has 3406 states and 8558 transitions. [2018-12-03 02:43:44,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 02:43:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 8558 transitions. [2018-12-03 02:43:44,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-03 02:43:44,519 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:44,520 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:44,520 INFO L423 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:44,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:44,520 INFO L82 PathProgramCache]: Analyzing trace with hash 998186936, now seen corresponding path program 1 times [2018-12-03 02:43:44,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 02:43:44,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:44,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:44,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 02:43:44,522 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 02:43:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:44,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:43:44,565 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 02:43:44,566 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-12-03 02:43:44,569 INFO L168 Benchmark]: Toolchain (without parser) took 2038.15 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.6 MB). Free memory was 952.4 MB in the beginning and 988.6 MB in the end (delta: -36.2 MB). Peak memory consumption was 193.5 MB. Max. memory is 11.5 GB. [2018-12-03 02:43:44,570 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:43:44,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -81.2 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2018-12-03 02:43:44,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-03 02:43:44,571 INFO L168 Benchmark]: Boogie Preprocessor took 18.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:43:44,572 INFO L168 Benchmark]: RCFGBuilder took 245.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 988.0 MB in the end (delta: 42.1 MB). Peak memory consumption was 42.1 MB. Max. memory is 11.5 GB. [2018-12-03 02:43:44,572 INFO L168 Benchmark]: TraceAbstraction took 1331.58 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 147.8 MB). Free memory was 988.0 MB in the beginning and 988.6 MB in the end (delta: -509.5 kB). Peak memory consumption was 147.3 MB. Max. memory is 11.5 GB. [2018-12-03 02:43:44,575 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 410.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -81.2 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 245.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 988.0 MB in the end (delta: 42.1 MB). Peak memory consumption was 42.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1331.58 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 147.8 MB). Free memory was 988.0 MB in the beginning and 988.6 MB in the end (delta: -509.5 kB). Peak memory consumption was 147.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: AbsInt only supports BoogieIcfgLocations and Codeblocks at the moment: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-03 02:43:45,991 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 02:43:45,992 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 02:43:45,998 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 02:43:45,999 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 02:43:45,999 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 02:43:46,000 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 02:43:46,001 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 02:43:46,001 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 02:43:46,002 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 02:43:46,002 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 02:43:46,002 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 02:43:46,003 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 02:43:46,003 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 02:43:46,004 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 02:43:46,004 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 02:43:46,004 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 02:43:46,005 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 02:43:46,006 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 02:43:46,007 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 02:43:46,008 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 02:43:46,008 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 02:43:46,009 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 02:43:46,009 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 02:43:46,009 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 02:43:46,010 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 02:43:46,011 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 02:43:46,011 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 02:43:46,011 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 02:43:46,012 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 02:43:46,012 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 02:43:46,012 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 02:43:46,012 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 02:43:46,013 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 02:43:46,013 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 02:43:46,013 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 02:43:46,014 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 02:43:46,021 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 02:43:46,021 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 02:43:46,021 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 02:43:46,021 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 02:43:46,022 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 02:43:46,022 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 02:43:46,022 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 02:43:46,022 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 02:43:46,022 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 02:43:46,022 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 02:43:46,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 02:43:46,023 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 02:43:46,024 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 02:43:46,024 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 02:43:46,024 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 02:43:46,024 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 02:43:46,024 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 02:43:46,024 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 02:43:46,024 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 02:43:46,024 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 02:43:46,024 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 02:43:46,024 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 02:43:46,025 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 02:43:46,025 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 02:43:46,025 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 02:43:46,025 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 02:43:46,025 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_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd13eb8db6a6bb215c2d42af70a6b175025c5d6b [2018-12-03 02:43:46,043 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 02:43:46,053 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 02:43:46,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 02:43:46,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 02:43:46,057 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 02:43:46,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/../../sv-benchmarks/c/pthread/stack_true-unreach-call.i [2018-12-03 02:43:46,101 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data/8277a320d/2c4c898b5e6347e29d3fc8e2cdb3d273/FLAG3942c2aa5 [2018-12-03 02:43:46,555 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 02:43:46,556 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/sv-benchmarks/c/pthread/stack_true-unreach-call.i [2018-12-03 02:43:46,564 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data/8277a320d/2c4c898b5e6347e29d3fc8e2cdb3d273/FLAG3942c2aa5 [2018-12-03 02:43:46,572 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/data/8277a320d/2c4c898b5e6347e29d3fc8e2cdb3d273 [2018-12-03 02:43:46,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 02:43:46,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 02:43:46,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 02:43:46,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 02:43:46,577 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 02:43:46,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:46,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7834880b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46, skipping insertion in model container [2018-12-03 02:43:46,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:46,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 02:43:46,608 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 02:43:46,860 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 02:43:46,873 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 02:43:46,932 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 02:43:46,991 INFO L195 MainTranslator]: Completed translation [2018-12-03 02:43:46,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46 WrapperNode [2018-12-03 02:43:46,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 02:43:46,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 02:43:46,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 02:43:46,992 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 02:43:46,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 02:43:47,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 02:43:47,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 02:43:47,023 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 02:43:47,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... [2018-12-03 02:43:47,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 02:43:47,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 02:43:47,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 02:43:47,043 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 02:43:47,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 02:43:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 02:43:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2018-12-03 02:43:47,077 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2018-12-03 02:43:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2018-12-03 02:43:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2018-12-03 02:43:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 02:43:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 02:43:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2018-12-03 02:43:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 02:43:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-03 02:43:47,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 02:43:47,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 02:43:47,079 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-03 02:43:47,337 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 02:43:47,337 INFO L280 CfgBuilder]: Removed 22 assue(true) statements. [2018-12-03 02:43:47,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:43:47 BoogieIcfgContainer [2018-12-03 02:43:47,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 02:43:47,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 02:43:47,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 02:43:47,339 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 02:43:47,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 02:43:46" (1/3) ... [2018-12-03 02:43:47,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f351333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 02:43:47, skipping insertion in model container [2018-12-03 02:43:47,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:43:46" (2/3) ... [2018-12-03 02:43:47,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f351333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 02:43:47, skipping insertion in model container [2018-12-03 02:43:47,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:43:47" (3/3) ... [2018-12-03 02:43:47,341 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_true-unreach-call.i [2018-12-03 02:43:47,367 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,367 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,367 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,367 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,367 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,367 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,368 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,368 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,368 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,368 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,368 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,368 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,368 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~nondet41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,369 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,370 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,371 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,371 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,371 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,371 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,371 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,371 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,371 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,371 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,372 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,372 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,372 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,372 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,372 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,372 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,373 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,373 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,373 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#t~ret34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,373 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,374 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,374 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,374 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,374 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,374 WARN L317 ript$VariableManager]: TermVariabe Thread0_t1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,374 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,375 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,375 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_inc_top_#t~post29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,375 WARN L317 ript$VariableManager]: TermVariabe |Thread0_t1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,376 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,376 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,376 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,376 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,376 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,376 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,377 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,377 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,377 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,377 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,377 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,377 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~nondet44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,378 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,378 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,378 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,378 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,378 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,379 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,379 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,379 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,379 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,379 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,379 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,379 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,380 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,380 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,380 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,380 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,380 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~post43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,381 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~nondet35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,381 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,381 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,381 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,381 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,381 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,382 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,382 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,382 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,382 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_dec_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,382 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,383 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_#t~ret45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,383 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,383 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,383 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,383 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,384 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,384 WARN L317 ript$VariableManager]: TermVariabe Thread1_t2_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,384 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,384 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,384 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,384 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,385 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,385 WARN L317 ript$VariableManager]: TermVariabe |Thread1_t2_pop_#t~ret37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 02:43:47,396 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-03 02:43:47,397 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 02:43:47,403 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-03 02:43:47,412 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-03 02:43:47,426 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 02:43:47,426 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 02:43:47,426 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 02:43:47,426 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 02:43:47,426 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 02:43:47,426 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 02:43:47,427 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 02:43:47,427 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 02:43:47,427 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 02:43:47,433 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122places, 130 transitions [2018-12-03 02:43:47,539 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5068 states. [2018-12-03 02:43:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5068 states. [2018-12-03 02:43:47,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-03 02:43:47,555 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:47,555 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:47,557 INFO L423 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:47,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:47,560 INFO L82 PathProgramCache]: Analyzing trace with hash 86707198, now seen corresponding path program 1 times [2018-12-03 02:43:47,563 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:43:47,564 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:43:47,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:47,655 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:43:47,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:47,683 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 02:43:47,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:47,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 02:43:47,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 02:43:47,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 02:43:47,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:47,704 INFO L87 Difference]: Start difference. First operand 5068 states. Second operand 3 states. [2018-12-03 02:43:47,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:47,789 INFO L93 Difference]: Finished difference Result 7351 states and 19477 transitions. [2018-12-03 02:43:47,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 02:43:47,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-12-03 02:43:47,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:47,822 INFO L225 Difference]: With dead ends: 7351 [2018-12-03 02:43:47,822 INFO L226 Difference]: Without dead ends: 7090 [2018-12-03 02:43:47,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2018-12-03 02:43:47,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 6823. [2018-12-03 02:43:47,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6823 states. [2018-12-03 02:43:47,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6823 states to 6823 states and 18275 transitions. [2018-12-03 02:43:47,989 INFO L78 Accepts]: Start accepts. Automaton has 6823 states and 18275 transitions. Word has length 46 [2018-12-03 02:43:47,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:47,990 INFO L480 AbstractCegarLoop]: Abstraction has 6823 states and 18275 transitions. [2018-12-03 02:43:47,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 02:43:47,990 INFO L276 IsEmpty]: Start isEmpty. Operand 6823 states and 18275 transitions. [2018-12-03 02:43:47,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-03 02:43:47,992 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:47,992 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:47,993 INFO L423 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:47,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:47,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1877452049, now seen corresponding path program 1 times [2018-12-03 02:43:47,993 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:43:47,993 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:43:48,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:48,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:43:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:48,060 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 02:43:48,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:48,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 02:43:48,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 02:43:48,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 02:43:48,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 02:43:48,063 INFO L87 Difference]: Start difference. First operand 6823 states and 18275 transitions. Second operand 4 states. [2018-12-03 02:43:48,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:48,146 INFO L93 Difference]: Finished difference Result 10000 states and 26696 transitions. [2018-12-03 02:43:48,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 02:43:48,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 55 [2018-12-03 02:43:48,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:48,169 INFO L225 Difference]: With dead ends: 10000 [2018-12-03 02:43:48,169 INFO L226 Difference]: Without dead ends: 10000 [2018-12-03 02:43:48,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 02:43:48,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2018-12-03 02:43:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 7183. [2018-12-03 02:43:48,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7183 states. [2018-12-03 02:43:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7183 states to 7183 states and 19235 transitions. [2018-12-03 02:43:48,316 INFO L78 Accepts]: Start accepts. Automaton has 7183 states and 19235 transitions. Word has length 55 [2018-12-03 02:43:48,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:48,316 INFO L480 AbstractCegarLoop]: Abstraction has 7183 states and 19235 transitions. [2018-12-03 02:43:48,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 02:43:48,316 INFO L276 IsEmpty]: Start isEmpty. Operand 7183 states and 19235 transitions. [2018-12-03 02:43:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-03 02:43:48,320 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:48,320 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:48,320 INFO L423 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:48,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:48,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1533879581, now seen corresponding path program 1 times [2018-12-03 02:43:48,321 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:43:48,321 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:43:48,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:48,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:43:48,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:48,407 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 02:43:48,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:48,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 02:43:48,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 02:43:48,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 02:43:48,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 02:43:48,409 INFO L87 Difference]: Start difference. First operand 7183 states and 19235 transitions. Second operand 5 states. [2018-12-03 02:43:48,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:48,528 INFO L93 Difference]: Finished difference Result 10789 states and 28539 transitions. [2018-12-03 02:43:48,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 02:43:48,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-12-03 02:43:48,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:48,544 INFO L225 Difference]: With dead ends: 10789 [2018-12-03 02:43:48,544 INFO L226 Difference]: Without dead ends: 10789 [2018-12-03 02:43:48,544 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-03 02:43:48,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10789 states. [2018-12-03 02:43:48,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10789 to 10195. [2018-12-03 02:43:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10195 states. [2018-12-03 02:43:48,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10195 states to 10195 states and 27139 transitions. [2018-12-03 02:43:48,672 INFO L78 Accepts]: Start accepts. Automaton has 10195 states and 27139 transitions. Word has length 70 [2018-12-03 02:43:48,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:48,673 INFO L480 AbstractCegarLoop]: Abstraction has 10195 states and 27139 transitions. [2018-12-03 02:43:48,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 02:43:48,673 INFO L276 IsEmpty]: Start isEmpty. Operand 10195 states and 27139 transitions. [2018-12-03 02:43:48,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-03 02:43:48,677 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:48,677 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:48,677 INFO L423 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:48,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:48,677 INFO L82 PathProgramCache]: Analyzing trace with hash -417734679, now seen corresponding path program 1 times [2018-12-03 02:43:48,677 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:43:48,677 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:43:48,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:48,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:43:48,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-12-03 02:43:48,786 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-03 02:43:48,787 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:43:48,789 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:48,794 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:48,794 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-12-03 02:43:48,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:48,805 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 02:43:48,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:48,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 02:43:48,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 02:43:48,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 02:43:48,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:48,807 INFO L87 Difference]: Start difference. First operand 10195 states and 27139 transitions. Second operand 3 states. [2018-12-03 02:43:48,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:48,839 INFO L93 Difference]: Finished difference Result 4849 states and 12205 transitions. [2018-12-03 02:43:48,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 02:43:48,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2018-12-03 02:43:48,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:48,848 INFO L225 Difference]: With dead ends: 4849 [2018-12-03 02:43:48,848 INFO L226 Difference]: Without dead ends: 4849 [2018-12-03 02:43:48,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 02:43:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2018-12-03 02:43:48,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 4543. [2018-12-03 02:43:48,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4543 states. [2018-12-03 02:43:48,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4543 states to 4543 states and 11420 transitions. [2018-12-03 02:43:48,900 INFO L78 Accepts]: Start accepts. Automaton has 4543 states and 11420 transitions. Word has length 79 [2018-12-03 02:43:48,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:48,900 INFO L480 AbstractCegarLoop]: Abstraction has 4543 states and 11420 transitions. [2018-12-03 02:43:48,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 02:43:48,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4543 states and 11420 transitions. [2018-12-03 02:43:48,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-03 02:43:48,903 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:48,904 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:48,904 INFO L423 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:48,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:48,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1008315293, now seen corresponding path program 1 times [2018-12-03 02:43:48,904 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:43:48,904 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:43:48,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:49,015 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:43:49,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 02:43:49,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-03 02:43:49,234 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:43:49,236 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:49,248 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:49,248 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-12-03 02:43:49,565 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-03 02:43:49,567 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-03 02:43:49,567 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:43:49,569 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:49,570 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:49,571 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 02:43:49,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:49,734 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 02:43:49,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 02:43:49,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2018-12-03 02:43:49,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-12-03 02:43:49,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-12-03 02:43:49,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-12-03 02:43:49,737 INFO L87 Difference]: Start difference. First operand 4543 states and 11420 transitions. Second operand 22 states. [2018-12-03 02:43:53,601 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-12-03 02:43:54,132 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2018-12-03 02:43:54,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:54,748 INFO L93 Difference]: Finished difference Result 9385 states and 23528 transitions. [2018-12-03 02:43:54,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-12-03 02:43:54,749 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 85 [2018-12-03 02:43:54,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:54,760 INFO L225 Difference]: With dead ends: 9385 [2018-12-03 02:43:54,760 INFO L226 Difference]: Without dead ends: 8788 [2018-12-03 02:43:54,760 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=443, Invalid=2313, Unknown=0, NotChecked=0, Total=2756 [2018-12-03 02:43:54,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8788 states. [2018-12-03 02:43:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8788 to 5368. [2018-12-03 02:43:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5368 states. [2018-12-03 02:43:54,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 13590 transitions. [2018-12-03 02:43:54,824 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 13590 transitions. Word has length 85 [2018-12-03 02:43:54,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:54,824 INFO L480 AbstractCegarLoop]: Abstraction has 5368 states and 13590 transitions. [2018-12-03 02:43:54,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-12-03 02:43:54,824 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 13590 transitions. [2018-12-03 02:43:54,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-12-03 02:43:54,829 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:54,830 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:54,830 INFO L423 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:54,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:54,830 INFO L82 PathProgramCache]: Analyzing trace with hash 309424711, now seen corresponding path program 1 times [2018-12-03 02:43:54,830 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:43:54,830 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:43:54,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:54,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:43:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:54,918 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:43:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:54,970 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:43:54,970 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/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 [2018-12-03 02:43:54,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:55,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:43:55,037 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:55,038 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:43:55,048 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-03 02:43:55,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2018-12-03 02:43:55,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 7, 7] total 12 [2018-12-03 02:43:55,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-03 02:43:55,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-03 02:43:55,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-12-03 02:43:55,066 INFO L87 Difference]: Start difference. First operand 5368 states and 13590 transitions. Second operand 12 states. [2018-12-03 02:43:55,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:43:55,310 INFO L93 Difference]: Finished difference Result 11329 states and 28503 transitions. [2018-12-03 02:43:55,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-03 02:43:55,310 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2018-12-03 02:43:55,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:43:55,319 INFO L225 Difference]: With dead ends: 11329 [2018-12-03 02:43:55,319 INFO L226 Difference]: Without dead ends: 11329 [2018-12-03 02:43:55,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 415 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2018-12-03 02:43:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11329 states. [2018-12-03 02:43:55,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11329 to 6178. [2018-12-03 02:43:55,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6178 states. [2018-12-03 02:43:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6178 states to 6178 states and 15562 transitions. [2018-12-03 02:43:55,397 INFO L78 Accepts]: Start accepts. Automaton has 6178 states and 15562 transitions. Word has length 105 [2018-12-03 02:43:55,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:43:55,397 INFO L480 AbstractCegarLoop]: Abstraction has 6178 states and 15562 transitions. [2018-12-03 02:43:55,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-03 02:43:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 6178 states and 15562 transitions. [2018-12-03 02:43:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-12-03 02:43:55,401 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:43:55,401 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:43:55,401 INFO L423 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:43:55,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:43:55,401 INFO L82 PathProgramCache]: Analyzing trace with hash -5717505, now seen corresponding path program 1 times [2018-12-03 02:43:55,402 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:43:55,402 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:43:55,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:43:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:43:55,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:43:55,683 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 02:43:55,685 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-03 02:43:55,685 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:43:55,688 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:55,697 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:55,698 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:20 [2018-12-03 02:43:56,040 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-03 02:43:56,042 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-03 02:43:56,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:43:56,044 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:56,046 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:56,046 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 02:43:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:43:56,186 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:43:57,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-12-03 02:43:57,081 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:43:57,081 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:43:57,082 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:57,087 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-12-03 02:43:57,090 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:43:57,091 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-03 02:43:57,094 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:43:57,116 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-03 02:43:57,117 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:24, output treesize:21 [2018-12-03 02:43:57,874 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-03 02:43:57,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 02:43:57,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [24] total 42 [2018-12-03 02:43:57,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2018-12-03 02:43:57,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2018-12-03 02:43:57,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1611, Unknown=0, NotChecked=0, Total=1722 [2018-12-03 02:43:57,880 INFO L87 Difference]: Start difference. First operand 6178 states and 15562 transitions. Second operand 42 states. [2018-12-03 02:44:14,563 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2018-12-03 02:44:19,442 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2018-12-03 02:44:19,725 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-12-03 02:44:27,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:44:27,613 INFO L93 Difference]: Finished difference Result 15838 states and 39821 transitions. [2018-12-03 02:44:27,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2018-12-03 02:44:27,614 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 114 [2018-12-03 02:44:27,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:44:27,625 INFO L225 Difference]: With dead ends: 15838 [2018-12-03 02:44:27,625 INFO L226 Difference]: Without dead ends: 15838 [2018-12-03 02:44:27,628 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11137 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=3484, Invalid=29458, Unknown=0, NotChecked=0, Total=32942 [2018-12-03 02:44:27,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15838 states. [2018-12-03 02:44:27,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15838 to 7849. [2018-12-03 02:44:27,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7849 states. [2018-12-03 02:44:27,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7849 states to 7849 states and 19870 transitions. [2018-12-03 02:44:27,730 INFO L78 Accepts]: Start accepts. Automaton has 7849 states and 19870 transitions. Word has length 114 [2018-12-03 02:44:27,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:44:27,731 INFO L480 AbstractCegarLoop]: Abstraction has 7849 states and 19870 transitions. [2018-12-03 02:44:27,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 42 states. [2018-12-03 02:44:27,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7849 states and 19870 transitions. [2018-12-03 02:44:27,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-03 02:44:27,737 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:44:27,737 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:44:27,737 INFO L423 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:44:27,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:44:27,737 INFO L82 PathProgramCache]: Analyzing trace with hash 443570260, now seen corresponding path program 1 times [2018-12-03 02:44:27,738 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:44:27,738 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:44:27,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:44:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:44:27,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:44:27,855 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:44:27,855 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:44:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:44:27,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:44:27,934 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:44:27,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:44:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:44:27,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:44:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:44:27,983 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:44:28,001 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:44:28,016 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 02:44:28,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9] total 16 [2018-12-03 02:44:28,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-03 02:44:28,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-03 02:44:28,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-12-03 02:44:28,017 INFO L87 Difference]: Start difference. First operand 7849 states and 19870 transitions. Second operand 16 states. [2018-12-03 02:44:28,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:44:28,444 INFO L93 Difference]: Finished difference Result 22771 states and 57523 transitions. [2018-12-03 02:44:28,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-12-03 02:44:28,444 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 134 [2018-12-03 02:44:28,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:44:28,460 INFO L225 Difference]: With dead ends: 22771 [2018-12-03 02:44:28,461 INFO L226 Difference]: Without dead ends: 22771 [2018-12-03 02:44:28,461 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=328, Invalid=1004, Unknown=0, NotChecked=0, Total=1332 [2018-12-03 02:44:28,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22771 states. [2018-12-03 02:44:28,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22771 to 17137. [2018-12-03 02:44:28,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17137 states. [2018-12-03 02:44:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17137 states to 17137 states and 43701 transitions. [2018-12-03 02:44:28,644 INFO L78 Accepts]: Start accepts. Automaton has 17137 states and 43701 transitions. Word has length 134 [2018-12-03 02:44:28,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:44:28,644 INFO L480 AbstractCegarLoop]: Abstraction has 17137 states and 43701 transitions. [2018-12-03 02:44:28,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-03 02:44:28,645 INFO L276 IsEmpty]: Start isEmpty. Operand 17137 states and 43701 transitions. [2018-12-03 02:44:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-12-03 02:44:28,654 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:44:28,654 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:44:28,654 INFO L423 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:44:28,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:44:28,654 INFO L82 PathProgramCache]: Analyzing trace with hash 854863353, now seen corresponding path program 1 times [2018-12-03 02:44:28,655 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:44:28,655 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:44:28,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:44:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:44:28,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:44:28,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 02:44:28,993 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-03 02:44:28,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:28,995 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:29,004 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:29,004 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-12-03 02:44:29,205 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:44:29,208 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:44:29,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:44:29,211 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:29,220 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:29,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:29,235 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:44:29,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-03 02:44:29,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-03 02:44:29,759 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:29,761 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:29,762 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:29,762 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 02:44:30,081 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:44:30,081 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:44:32,192 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-12-03 02:44:32,195 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:44:32,195 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,196 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-12-03 02:44:32,203 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:44:32,203 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,207 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-03 02:44:32,228 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:24, output treesize:21 [2018-12-03 02:44:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:44:32,882 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:44:32,882 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:44:32,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:44:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:44:32,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:44:32,939 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 02:44:32,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-03 02:44:32,942 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,944 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,953 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,953 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-12-03 02:44:32,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:44:32,964 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:44:32,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:44:32,967 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,974 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,985 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,985 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:44:32,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-03 02:44:32,992 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-03 02:44:32,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,994 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,996 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:32,996 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 02:44:33,027 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:44:33,027 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:44:33,152 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-12-03 02:44:33,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:44:33,155 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:33,156 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:33,160 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-12-03 02:44:33,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:44:33,164 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-03 02:44:33,168 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:44:33,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-03 02:44:33,187 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:24, output treesize:21 [2018-12-03 02:44:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:44:33,297 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 02:44:33,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27, 29, 27] total 54 [2018-12-03 02:44:33,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-12-03 02:44:33,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-12-03 02:44:33,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=2696, Unknown=0, NotChecked=0, Total=2862 [2018-12-03 02:44:33,298 INFO L87 Difference]: Start difference. First operand 17137 states and 43701 transitions. Second operand 54 states. [2018-12-03 02:44:37,346 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2018-12-03 02:44:37,757 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2018-12-03 02:44:39,765 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2018-12-03 02:44:40,373 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2018-12-03 02:44:40,883 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-12-03 02:44:43,004 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2018-12-03 02:44:43,355 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:44:44,805 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2018-12-03 02:44:46,374 WARN L180 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2018-12-03 02:44:46,701 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2018-12-03 02:44:47,200 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-12-03 02:44:47,561 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2018-12-03 02:44:48,566 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2018-12-03 02:44:49,085 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2018-12-03 02:44:49,456 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-12-03 02:44:50,123 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-12-03 02:44:50,564 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2018-12-03 02:44:50,961 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2018-12-03 02:44:51,328 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-03 02:44:56,501 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-03 02:44:56,898 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2018-12-03 02:44:57,750 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-03 02:44:58,137 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-12-03 02:44:58,567 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-12-03 02:44:59,994 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2018-12-03 02:45:00,458 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:45:00,788 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-12-03 02:45:01,134 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2018-12-03 02:45:01,344 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2018-12-03 02:45:01,642 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2018-12-03 02:45:02,084 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2018-12-03 02:45:02,430 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:45:02,708 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-12-03 02:45:03,518 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2018-12-03 02:45:04,066 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-12-03 02:45:04,432 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2018-12-03 02:45:04,832 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:45:05,735 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2018-12-03 02:45:06,163 WARN L180 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2018-12-03 02:45:06,381 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-12-03 02:45:06,699 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-12-03 02:45:07,749 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:45:08,362 WARN L180 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2018-12-03 02:45:08,618 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-12-03 02:45:08,944 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-12-03 02:45:09,198 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-12-03 02:45:09,876 WARN L180 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2018-12-03 02:45:10,340 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2018-12-03 02:45:12,716 WARN L180 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2018-12-03 02:45:13,046 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-12-03 02:45:13,368 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2018-12-03 02:45:13,808 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:45:14,470 WARN L180 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2018-12-03 02:45:14,774 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2018-12-03 02:45:15,091 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2018-12-03 02:45:15,458 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-12-03 02:45:15,850 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2018-12-03 02:45:16,329 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2018-12-03 02:45:16,721 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2018-12-03 02:45:17,143 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2018-12-03 02:45:17,530 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-12-03 02:45:17,884 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-12-03 02:45:18,420 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-03 02:45:18,788 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:45:19,863 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2018-12-03 02:45:20,308 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:45:20,602 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:45:21,129 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-12-03 02:45:21,647 WARN L180 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2018-12-03 02:45:22,035 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:45:22,396 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2018-12-03 02:45:22,845 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2018-12-03 02:45:23,222 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:45:24,006 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-12-03 02:45:24,365 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-03 02:45:25,476 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2018-12-03 02:45:25,928 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:45:26,248 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:45:26,917 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:45:27,933 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2018-12-03 02:45:28,457 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2018-12-03 02:45:29,076 WARN L180 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2018-12-03 02:45:29,561 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2018-12-03 02:45:30,106 WARN L180 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2018-12-03 02:45:30,733 WARN L180 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2018-12-03 02:45:31,771 WARN L180 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 70 [2018-12-03 02:45:32,423 WARN L180 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 78 [2018-12-03 02:45:33,165 WARN L180 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2018-12-03 02:45:33,828 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2018-12-03 02:45:34,256 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2018-12-03 02:45:36,010 WARN L180 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2018-12-03 02:45:37,092 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2018-12-03 02:45:37,698 WARN L180 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2018-12-03 02:45:39,306 WARN L180 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-12-03 02:45:49,447 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-03 02:45:49,783 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2018-12-03 02:45:51,268 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:45:51,609 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2018-12-03 02:45:52,030 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:45:52,446 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2018-12-03 02:45:52,932 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2018-12-03 02:45:53,354 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2018-12-03 02:45:54,464 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:45:54,790 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2018-12-03 02:45:55,919 WARN L180 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2018-12-03 02:45:56,494 WARN L180 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2018-12-03 02:45:57,416 WARN L180 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2018-12-03 02:45:58,129 WARN L180 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2018-12-03 02:45:59,151 WARN L180 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2018-12-03 02:45:59,846 WARN L180 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2018-12-03 02:46:00,554 WARN L180 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2018-12-03 02:46:01,986 WARN L180 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2018-12-03 02:46:02,967 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:46:03,730 WARN L180 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-12-03 02:46:04,796 WARN L180 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2018-12-03 02:46:05,134 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-12-03 02:46:06,533 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-12-03 02:46:07,001 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-12-03 02:46:07,363 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:46:07,726 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-03 02:46:08,075 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2018-12-03 02:46:08,504 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-12-03 02:46:09,219 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-12-03 02:46:09,815 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-03 02:46:10,617 WARN L180 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2018-12-03 02:46:11,300 WARN L180 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2018-12-03 02:46:12,042 WARN L180 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2018-12-03 02:46:12,796 WARN L180 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2018-12-03 02:46:13,455 WARN L180 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2018-12-03 02:46:14,051 WARN L180 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2018-12-03 02:46:14,825 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-12-03 02:46:15,527 WARN L180 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2018-12-03 02:46:16,712 WARN L180 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2018-12-03 02:46:17,467 WARN L180 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2018-12-03 02:46:18,023 WARN L180 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2018-12-03 02:46:18,475 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2018-12-03 02:46:19,080 WARN L180 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2018-12-03 02:46:19,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:46:19,097 INFO L93 Difference]: Finished difference Result 50692 states and 128207 transitions. [2018-12-03 02:46:19,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2018-12-03 02:46:19,098 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 141 [2018-12-03 02:46:19,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:46:19,136 INFO L225 Difference]: With dead ends: 50692 [2018-12-03 02:46:19,136 INFO L226 Difference]: Without dead ends: 48967 [2018-12-03 02:46:19,142 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 915 GetRequests, 631 SyntacticMatches, 9 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30485 ImplicationChecksByTransitivity, 77.3s TimeCoverageRelationStatistics Valid=7404, Invalid=69048, Unknown=0, NotChecked=0, Total=76452 [2018-12-03 02:46:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48967 states. [2018-12-03 02:46:19,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48967 to 18943. [2018-12-03 02:46:19,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18943 states. [2018-12-03 02:46:19,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18943 states to 18943 states and 48645 transitions. [2018-12-03 02:46:19,467 INFO L78 Accepts]: Start accepts. Automaton has 18943 states and 48645 transitions. Word has length 141 [2018-12-03 02:46:19,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:46:19,467 INFO L480 AbstractCegarLoop]: Abstraction has 18943 states and 48645 transitions. [2018-12-03 02:46:19,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-12-03 02:46:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand 18943 states and 48645 transitions. [2018-12-03 02:46:19,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-12-03 02:46:19,477 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:46:19,477 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:46:19,477 INFO L423 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:46:19,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:46:19,478 INFO L82 PathProgramCache]: Analyzing trace with hash 154870969, now seen corresponding path program 1 times [2018-12-03 02:46:19,478 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:46:19,478 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:46:19,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:46:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:46:19,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:19,591 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 02:46:19,591 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 02:46:19,684 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:46:19,684 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:46:19,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:46:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:46:19,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 02:46:19,737 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:19,757 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 6 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 02:46:19,773 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 02:46:19,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 18 [2018-12-03 02:46:19,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-03 02:46:19,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-03 02:46:19,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2018-12-03 02:46:19,774 INFO L87 Difference]: Start difference. First operand 18943 states and 48645 transitions. Second operand 18 states. [2018-12-03 02:46:20,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:46:20,320 INFO L93 Difference]: Finished difference Result 29932 states and 76033 transitions. [2018-12-03 02:46:20,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-12-03 02:46:20,320 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 164 [2018-12-03 02:46:20,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:46:20,344 INFO L225 Difference]: With dead ends: 29932 [2018-12-03 02:46:20,344 INFO L226 Difference]: Without dead ends: 29932 [2018-12-03 02:46:20,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=434, Invalid=1636, Unknown=0, NotChecked=0, Total=2070 [2018-12-03 02:46:20,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29932 states. [2018-12-03 02:46:20,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29932 to 21037. [2018-12-03 02:46:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21037 states. [2018-12-03 02:46:20,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21037 states to 21037 states and 54259 transitions. [2018-12-03 02:46:20,592 INFO L78 Accepts]: Start accepts. Automaton has 21037 states and 54259 transitions. Word has length 164 [2018-12-03 02:46:20,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:46:20,593 INFO L480 AbstractCegarLoop]: Abstraction has 21037 states and 54259 transitions. [2018-12-03 02:46:20,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-03 02:46:20,593 INFO L276 IsEmpty]: Start isEmpty. Operand 21037 states and 54259 transitions. [2018-12-03 02:46:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-12-03 02:46:20,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:46:20,608 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:46:20,608 INFO L423 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:46:20,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:46:20,608 INFO L82 PathProgramCache]: Analyzing trace with hash -140724652, now seen corresponding path program 2 times [2018-12-03 02:46:20,608 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:46:20,608 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:46:20,626 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-03 02:46:20,833 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-03 02:46:20,833 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:46:20,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 65 proven. 295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:46:20,936 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 65 proven. 295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:46:21,357 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:46:21,357 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:46:21,364 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-03 02:46:21,411 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-03 02:46:21,411 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:46:21,415 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:21,435 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 65 proven. 295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:46:21,435 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 65 proven. 295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:46:21,478 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 02:46:21,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13] total 24 [2018-12-03 02:46:21,478 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-12-03 02:46:21,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-12-03 02:46:21,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-12-03 02:46:21,478 INFO L87 Difference]: Start difference. First operand 21037 states and 54259 transitions. Second operand 24 states. [2018-12-03 02:46:21,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:46:21,777 INFO L93 Difference]: Finished difference Result 35587 states and 90653 transitions. [2018-12-03 02:46:21,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-03 02:46:21,778 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 192 [2018-12-03 02:46:21,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:46:21,797 INFO L225 Difference]: With dead ends: 35587 [2018-12-03 02:46:21,797 INFO L226 Difference]: Without dead ends: 25381 [2018-12-03 02:46:21,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=186, Invalid=936, Unknown=0, NotChecked=0, Total=1122 [2018-12-03 02:46:21,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25381 states. [2018-12-03 02:46:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25381 to 20188. [2018-12-03 02:46:21,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20188 states. [2018-12-03 02:46:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20188 states to 20188 states and 50789 transitions. [2018-12-03 02:46:21,988 INFO L78 Accepts]: Start accepts. Automaton has 20188 states and 50789 transitions. Word has length 192 [2018-12-03 02:46:21,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:46:21,989 INFO L480 AbstractCegarLoop]: Abstraction has 20188 states and 50789 transitions. [2018-12-03 02:46:21,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-12-03 02:46:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 20188 states and 50789 transitions. [2018-12-03 02:46:21,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-12-03 02:46:21,999 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:46:21,999 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:46:21,999 INFO L423 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:46:21,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:46:21,999 INFO L82 PathProgramCache]: Analyzing trace with hash 682963135, now seen corresponding path program 2 times [2018-12-03 02:46:22,000 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:46:22,000 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:46:22,018 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-03 02:46:22,163 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-03 02:46:22,163 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:46:22,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:22,229 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 193 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 02:46:22,229 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:22,332 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 193 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 02:46:22,335 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:46:22,335 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:46:22,341 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-03 02:46:22,387 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-03 02:46:22,387 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:46:22,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:22,413 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 193 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 02:46:22,413 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 193 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 02:46:22,456 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 02:46:22,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 18 [2018-12-03 02:46:22,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-03 02:46:22,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-03 02:46:22,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-12-03 02:46:22,457 INFO L87 Difference]: Start difference. First operand 20188 states and 50789 transitions. Second operand 18 states. [2018-12-03 02:46:23,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:46:23,373 INFO L93 Difference]: Finished difference Result 40360 states and 101108 transitions. [2018-12-03 02:46:23,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-12-03 02:46:23,374 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 193 [2018-12-03 02:46:23,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:46:23,402 INFO L225 Difference]: With dead ends: 40360 [2018-12-03 02:46:23,402 INFO L226 Difference]: Without dead ends: 39136 [2018-12-03 02:46:23,402 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=477, Invalid=2073, Unknown=0, NotChecked=0, Total=2550 [2018-12-03 02:46:23,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39136 states. [2018-12-03 02:46:23,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39136 to 21688. [2018-12-03 02:46:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21688 states. [2018-12-03 02:46:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21688 states to 21688 states and 54491 transitions. [2018-12-03 02:46:23,670 INFO L78 Accepts]: Start accepts. Automaton has 21688 states and 54491 transitions. Word has length 193 [2018-12-03 02:46:23,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:46:23,670 INFO L480 AbstractCegarLoop]: Abstraction has 21688 states and 54491 transitions. [2018-12-03 02:46:23,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-03 02:46:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 21688 states and 54491 transitions. [2018-12-03 02:46:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-12-03 02:46:23,681 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:46:23,682 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:46:23,682 INFO L423 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:46:23,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:46:23,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1208340247, now seen corresponding path program 3 times [2018-12-03 02:46:23,682 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:46:23,682 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:46:23,700 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-03 02:46:23,921 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-12-03 02:46:23,921 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:46:23,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:24,006 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 193 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 02:46:24,006 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 193 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 02:46:24,125 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:46:24,125 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:46:24,132 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 02:46:24,378 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-12-03 02:46:24,378 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:46:24,382 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 193 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 02:46:24,440 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 8 proven. 193 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-12-03 02:46:24,496 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 02:46:24,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10] total 18 [2018-12-03 02:46:24,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-03 02:46:24,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-03 02:46:24,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2018-12-03 02:46:24,497 INFO L87 Difference]: Start difference. First operand 21688 states and 54491 transitions. Second operand 18 states. [2018-12-03 02:46:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:46:25,128 INFO L93 Difference]: Finished difference Result 41992 states and 105006 transitions. [2018-12-03 02:46:25,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-12-03 02:46:25,129 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 193 [2018-12-03 02:46:25,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:46:25,157 INFO L225 Difference]: With dead ends: 41992 [2018-12-03 02:46:25,158 INFO L226 Difference]: Without dead ends: 41116 [2018-12-03 02:46:25,158 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 750 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=451, Invalid=1901, Unknown=0, NotChecked=0, Total=2352 [2018-12-03 02:46:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41116 states. [2018-12-03 02:46:25,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41116 to 21025. [2018-12-03 02:46:25,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21025 states. [2018-12-03 02:46:25,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21025 states to 21025 states and 52655 transitions. [2018-12-03 02:46:25,414 INFO L78 Accepts]: Start accepts. Automaton has 21025 states and 52655 transitions. Word has length 193 [2018-12-03 02:46:25,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:46:25,415 INFO L480 AbstractCegarLoop]: Abstraction has 21025 states and 52655 transitions. [2018-12-03 02:46:25,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-03 02:46:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 21025 states and 52655 transitions. [2018-12-03 02:46:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-12-03 02:46:25,428 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:46:25,428 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:46:25,428 INFO L423 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:46:25,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:46:25,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1760452637, now seen corresponding path program 2 times [2018-12-03 02:46:25,429 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:46:25,429 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:46:25,447 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-03 02:46:25,689 ERROR L235 seRefinementStrategy]: Caught known exception: Array theory solver does not yet support write-chains connecting two different constant arrays [2018-12-03 02:46:25,689 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-03 02:46:25,689 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-03 02:46:25,696 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-03 02:46:25,778 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-03 02:46:25,778 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:46:25,783 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:46:25,919 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 02:46:25,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-03 02:46:25,922 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:46:25,924 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:25,933 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:25,933 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-12-03 02:46:26,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:46:26,135 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:46:26,137 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:46:26,138 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,146 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,156 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,156 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:46:26,368 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:46:26,372 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:46:26,374 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:46:26,374 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,381 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,392 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:46:26,969 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-03 02:46:26,971 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-03 02:46:26,971 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,973 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:26,974 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 02:46:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:46:27,228 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:46:31,197 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-12-03 02:46:31,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:46:31,200 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:46:31,202 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:31,205 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-12-03 02:46:31,208 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:46:31,208 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-03 02:46:31,212 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:46:31,231 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-03 02:46:31,231 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:24, output treesize:21 [2018-12-03 02:46:32,048 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 12 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:46:32,063 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-03 02:46:32,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 34] total 68 [2018-12-03 02:46:32,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-12-03 02:46:32,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-12-03 02:46:32,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=4339, Unknown=0, NotChecked=0, Total=4556 [2018-12-03 02:46:32,064 INFO L87 Difference]: Start difference. First operand 21025 states and 52655 transitions. Second operand 68 states. [2018-12-03 02:46:39,971 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 65 [2018-12-03 02:46:40,677 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:46:42,051 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-03 02:46:42,902 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2018-12-03 02:46:43,340 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2018-12-03 02:46:45,147 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:46:45,543 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2018-12-03 02:46:47,048 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2018-12-03 02:46:47,416 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2018-12-03 02:46:48,153 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2018-12-03 02:46:48,536 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2018-12-03 02:46:49,196 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-12-03 02:46:49,720 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2018-12-03 02:46:50,362 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2018-12-03 02:46:50,896 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-03 02:46:51,688 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-12-03 02:46:52,080 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2018-12-03 02:46:52,567 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2018-12-03 02:46:53,197 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2018-12-03 02:46:53,606 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2018-12-03 02:46:54,062 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-12-03 02:46:54,698 WARN L180 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2018-12-03 02:46:55,102 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2018-12-03 02:46:55,979 WARN L180 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2018-12-03 02:46:56,735 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2018-12-03 02:46:57,437 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2018-12-03 02:46:58,090 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2018-12-03 02:46:58,728 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-03 02:46:59,112 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-12-03 02:46:59,738 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-12-03 02:46:59,993 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2018-12-03 02:47:00,486 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-12-03 02:47:01,375 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2018-12-03 02:47:01,819 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2018-12-03 02:47:02,300 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-12-03 02:47:03,586 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2018-12-03 02:47:04,222 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:47:04,767 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2018-12-03 02:47:05,178 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2018-12-03 02:47:05,595 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-12-03 02:47:06,060 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-03 02:47:07,354 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2018-12-03 02:47:07,734 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2018-12-03 02:47:08,009 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-12-03 02:47:08,350 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2018-12-03 02:47:08,880 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2018-12-03 02:47:09,334 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2018-12-03 02:47:09,721 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-12-03 02:47:10,063 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2018-12-03 02:47:10,616 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2018-12-03 02:47:11,293 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 72 [2018-12-03 02:47:11,860 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2018-12-03 02:47:12,468 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2018-12-03 02:47:12,858 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-12-03 02:47:13,395 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2018-12-03 02:47:14,272 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-12-03 02:47:14,881 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2018-12-03 02:47:15,364 WARN L180 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2018-12-03 02:47:15,736 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2018-12-03 02:47:16,399 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2018-12-03 02:47:25,525 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2018-12-03 02:47:26,149 WARN L180 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2018-12-03 02:47:26,833 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2018-12-03 02:47:27,294 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-12-03 02:47:28,162 WARN L180 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2018-12-03 02:47:28,642 WARN L180 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2018-12-03 02:47:29,189 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2018-12-03 02:47:30,096 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 74 [2018-12-03 02:47:30,827 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-12-03 02:47:31,608 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:47:32,054 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2018-12-03 02:47:32,618 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2018-12-03 02:47:33,048 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2018-12-03 02:47:33,725 WARN L180 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2018-12-03 02:47:34,455 WARN L180 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2018-12-03 02:47:35,137 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2018-12-03 02:47:35,592 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:47:36,192 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2018-12-03 02:47:36,759 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-12-03 02:47:38,156 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2018-12-03 02:47:38,565 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:47:39,178 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2018-12-03 02:47:40,999 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-03 02:47:41,581 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2018-12-03 02:47:42,109 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2018-12-03 02:47:42,642 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2018-12-03 02:47:43,158 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2018-12-03 02:47:43,723 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2018-12-03 02:47:44,280 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2018-12-03 02:47:44,854 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2018-12-03 02:47:45,640 WARN L180 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 74 [2018-12-03 02:47:46,472 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2018-12-03 02:47:47,623 WARN L180 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2018-12-03 02:47:49,144 WARN L180 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2018-12-03 02:47:49,599 WARN L180 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2018-12-03 02:47:50,152 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2018-12-03 02:47:50,724 WARN L180 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2018-12-03 02:47:53,079 WARN L180 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:47:53,951 WARN L180 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2018-12-03 02:47:54,434 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2018-12-03 02:47:54,977 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 73 [2018-12-03 02:47:55,508 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2018-12-03 02:47:55,751 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:47:56,121 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2018-12-03 02:47:57,090 WARN L180 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2018-12-03 02:47:57,965 WARN L180 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2018-12-03 02:47:58,617 WARN L180 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2018-12-03 02:47:59,111 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-12-03 02:48:02,090 WARN L180 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2018-12-03 02:48:02,814 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2018-12-03 02:48:03,308 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2018-12-03 02:48:03,653 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-12-03 02:48:04,065 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:48:04,684 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2018-12-03 02:48:05,133 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2018-12-03 02:48:09,063 WARN L180 SmtUtils]: Spent 3.64 s on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2018-12-03 02:48:09,615 WARN L180 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2018-12-03 02:48:10,229 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2018-12-03 02:48:10,844 WARN L180 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 77 [2018-12-03 02:48:11,175 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-12-03 02:48:11,668 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:48:12,176 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2018-12-03 02:48:12,687 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 78 [2018-12-03 02:48:13,381 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 83 [2018-12-03 02:48:13,881 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2018-12-03 02:48:14,627 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2018-12-03 02:48:15,015 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2018-12-03 02:48:15,490 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2018-12-03 02:48:15,796 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-12-03 02:48:16,266 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:48:16,951 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2018-12-03 02:48:17,450 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2018-12-03 02:48:17,755 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:48:18,102 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-03 02:48:18,589 WARN L180 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2018-12-03 02:48:19,014 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2018-12-03 02:48:19,606 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2018-12-03 02:48:19,915 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-12-03 02:48:20,334 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:48:21,002 WARN L180 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2018-12-03 02:48:21,494 WARN L180 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2018-12-03 02:48:22,171 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2018-12-03 02:48:22,887 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:48:23,430 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2018-12-03 02:48:23,907 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2018-12-03 02:48:24,465 WARN L180 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2018-12-03 02:48:24,708 WARN L180 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-12-03 02:48:25,183 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2018-12-03 02:48:26,155 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-12-03 02:48:26,616 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-12-03 02:48:27,864 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:48:28,747 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-12-03 02:48:29,127 WARN L180 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2018-12-03 02:48:29,696 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2018-12-03 02:48:30,121 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-12-03 02:48:30,668 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2018-12-03 02:48:31,100 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2018-12-03 02:48:31,698 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2018-12-03 02:48:32,366 WARN L180 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2018-12-03 02:48:33,871 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:48:34,396 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2018-12-03 02:48:34,916 WARN L180 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2018-12-03 02:48:35,374 WARN L180 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2018-12-03 02:48:36,007 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2018-12-03 02:48:37,006 WARN L180 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2018-12-03 02:48:37,574 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 78 [2018-12-03 02:48:38,058 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 81 [2018-12-03 02:48:38,724 WARN L180 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 86 [2018-12-03 02:48:39,689 WARN L180 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 78 [2018-12-03 02:48:40,022 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:48:40,876 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 82 [2018-12-03 02:48:41,387 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 85 [2018-12-03 02:48:42,147 WARN L180 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 90 [2018-12-03 02:48:43,241 WARN L180 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2018-12-03 02:48:43,616 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:48:44,329 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 79 [2018-12-03 02:48:44,818 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 82 [2018-12-03 02:48:45,362 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 87 [2018-12-03 02:48:48,106 WARN L180 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 103 DAG size of output: 79 [2018-12-03 02:48:48,459 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:48:49,205 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2018-12-03 02:48:49,975 WARN L180 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 95 [2018-12-03 02:48:50,651 WARN L180 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 98 [2018-12-03 02:48:51,487 WARN L180 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2018-12-03 02:48:52,613 WARN L180 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 96 [2018-12-03 02:48:53,008 WARN L180 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:48:59,561 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-12-03 02:48:59,959 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2018-12-03 02:49:10,097 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-12-03 02:49:11,115 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2018-12-03 02:49:11,520 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2018-12-03 02:49:11,850 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:49:13,201 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2018-12-03 02:49:13,606 WARN L180 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:49:14,163 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:49:14,714 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:49:15,201 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2018-12-03 02:49:15,519 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-12-03 02:49:15,974 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2018-12-03 02:49:16,476 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2018-12-03 02:49:16,846 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-03 02:49:17,577 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-03 02:49:18,074 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:49:19,184 WARN L180 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2018-12-03 02:49:19,950 WARN L180 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2018-12-03 02:49:20,898 WARN L180 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2018-12-03 02:49:23,562 WARN L180 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2018-12-03 02:49:25,297 WARN L180 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2018-12-03 02:49:27,305 WARN L180 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2018-12-03 02:49:27,955 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-12-03 02:49:29,132 WARN L180 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2018-12-03 02:49:29,739 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2018-12-03 02:49:32,800 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:49:33,211 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2018-12-03 02:49:34,831 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:49:35,259 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2018-12-03 02:49:37,579 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2018-12-03 02:49:40,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:40,230 INFO L93 Difference]: Finished difference Result 41455 states and 103217 transitions. [2018-12-03 02:49:40,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2018-12-03 02:49:40,231 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 197 [2018-12-03 02:49:40,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:40,244 INFO L225 Difference]: With dead ends: 41455 [2018-12-03 02:49:40,244 INFO L226 Difference]: Without dead ends: 19969 [2018-12-03 02:49:40,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 879 GetRequests, 503 SyntacticMatches, 9 SemanticMatches, 367 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54410 ImplicationChecksByTransitivity, 127.8s TimeCoverageRelationStatistics Valid=10299, Invalid=125493, Unknown=0, NotChecked=0, Total=135792 [2018-12-03 02:49:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19969 states. [2018-12-03 02:49:40,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19969 to 13588. [2018-12-03 02:49:40,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13588 states. [2018-12-03 02:49:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13588 states to 13588 states and 34033 transitions. [2018-12-03 02:49:40,383 INFO L78 Accepts]: Start accepts. Automaton has 13588 states and 34033 transitions. Word has length 197 [2018-12-03 02:49:40,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:40,383 INFO L480 AbstractCegarLoop]: Abstraction has 13588 states and 34033 transitions. [2018-12-03 02:49:40,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-12-03 02:49:40,384 INFO L276 IsEmpty]: Start isEmpty. Operand 13588 states and 34033 transitions. [2018-12-03 02:49:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-12-03 02:49:40,391 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:40,391 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:49:40,391 INFO L423 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:40,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:40,391 INFO L82 PathProgramCache]: Analyzing trace with hash -7436925, now seen corresponding path program 1 times [2018-12-03 02:49:40,391 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:49:40,391 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:49:40,409 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-03 02:49:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:40,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:49:40,574 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 8 proven. 235 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 02:49:40,574 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:49:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 8 proven. 235 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 02:49:40,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:49:40,746 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:49:40,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 02:49:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 02:49:40,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:49:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 8 proven. 235 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 02:49:40,853 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:49:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 8 proven. 235 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-12-03 02:49:40,904 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 02:49:40,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13] total 24 [2018-12-03 02:49:40,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-12-03 02:49:40,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-12-03 02:49:40,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2018-12-03 02:49:40,905 INFO L87 Difference]: Start difference. First operand 13588 states and 34033 transitions. Second operand 24 states. [2018-12-03 02:49:42,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:49:42,035 INFO L93 Difference]: Finished difference Result 24889 states and 61969 transitions. [2018-12-03 02:49:42,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-12-03 02:49:42,035 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 220 [2018-12-03 02:49:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:49:42,060 INFO L225 Difference]: With dead ends: 24889 [2018-12-03 02:49:42,061 INFO L226 Difference]: Without dead ends: 24349 [2018-12-03 02:49:42,061 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 852 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=786, Invalid=3374, Unknown=0, NotChecked=0, Total=4160 [2018-12-03 02:49:42,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24349 states. [2018-12-03 02:49:42,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24349 to 15217. [2018-12-03 02:49:42,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15217 states. [2018-12-03 02:49:42,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15217 states to 15217 states and 37877 transitions. [2018-12-03 02:49:42,228 INFO L78 Accepts]: Start accepts. Automaton has 15217 states and 37877 transitions. Word has length 220 [2018-12-03 02:49:42,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:49:42,228 INFO L480 AbstractCegarLoop]: Abstraction has 15217 states and 37877 transitions. [2018-12-03 02:49:42,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-12-03 02:49:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 15217 states and 37877 transitions. [2018-12-03 02:49:42,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-12-03 02:49:42,237 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:49:42,237 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:49:42,237 INFO L423 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:49:42,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:49:42,238 INFO L82 PathProgramCache]: Analyzing trace with hash -176208519, now seen corresponding path program 3 times [2018-12-03 02:49:42,238 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:49:42,238 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:49:42,257 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-03 02:49:42,565 ERROR L235 seRefinementStrategy]: Caught known exception: Array theory solver does not yet support write-chains connecting two different constant arrays [2018-12-03 02:49:42,565 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-03 02:49:42,565 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-03 02:49:42,572 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 02:49:42,827 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-03 02:49:42,828 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:49:42,834 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:49:42,997 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 02:49:42,999 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-03 02:49:42,999 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,002 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,013 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,013 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-12-03 02:49:43,204 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:49:43,208 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:49:43,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:49:43,210 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,219 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,235 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:49:43,771 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:49:43,778 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:49:43,783 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:49:43,783 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,803 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,835 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:43,835 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:49:44,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:49:44,240 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:49:44,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:49:44,243 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:49:44,255 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:44,270 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:44,271 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:49:45,097 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-03 02:49:45,098 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-03 02:49:45,099 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:49:45,100 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:45,102 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:45,102 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 02:49:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:49:45,452 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:49:51,804 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-12-03 02:49:51,807 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:49:51,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:49:51,808 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:51,812 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-12-03 02:49:51,815 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:49:51,816 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-03 02:49:51,819 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:49:51,838 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-03 02:49:51,839 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:24, output treesize:21 [2018-12-03 02:49:52,864 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 18 proven. 294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:49:52,880 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-03 02:49:52,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41] total 82 [2018-12-03 02:49:52,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 82 states [2018-12-03 02:49:52,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2018-12-03 02:49:52,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=6374, Unknown=0, NotChecked=0, Total=6642 [2018-12-03 02:49:52,882 INFO L87 Difference]: Start difference. First operand 15217 states and 37877 transitions. Second operand 82 states. [2018-12-03 02:50:02,473 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2018-12-03 02:50:03,250 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:50:04,877 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-03 02:50:05,832 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2018-12-03 02:50:06,348 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2018-12-03 02:50:08,377 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:50:08,813 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-03 02:50:10,463 WARN L180 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2018-12-03 02:50:10,840 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2018-12-03 02:50:11,736 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2018-12-03 02:50:12,128 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2018-12-03 02:50:12,909 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2018-12-03 02:50:13,561 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2018-12-03 02:50:14,329 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2018-12-03 02:50:14,969 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2018-12-03 02:50:15,882 WARN L180 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-12-03 02:50:16,318 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2018-12-03 02:50:16,869 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2018-12-03 02:50:17,589 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-12-03 02:50:18,066 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2018-12-03 02:50:19,324 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2018-12-03 02:50:19,843 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2018-12-03 02:50:20,823 WARN L180 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2018-12-03 02:50:21,710 WARN L180 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-12-03 02:50:22,483 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2018-12-03 02:50:23,285 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2018-12-03 02:50:23,911 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-03 02:50:24,974 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-12-03 02:50:26,350 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-12-03 02:50:26,984 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-12-03 02:50:27,697 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2018-12-03 02:50:28,180 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2018-12-03 02:50:28,655 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-12-03 02:50:30,207 WARN L180 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 88 [2018-12-03 02:50:30,707 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2018-12-03 02:50:31,009 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-12-03 02:50:31,401 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2018-12-03 02:50:32,104 WARN L180 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 74 [2018-12-03 02:50:32,569 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2018-12-03 02:50:33,030 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2018-12-03 02:50:33,443 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2018-12-03 02:50:33,900 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2018-12-03 02:50:34,624 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2018-12-03 02:50:35,264 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2018-12-03 02:50:35,931 WARN L180 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2018-12-03 02:50:36,362 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2018-12-03 02:50:36,998 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2018-12-03 02:50:38,096 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2018-12-03 02:50:38,644 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2018-12-03 02:50:39,259 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2018-12-03 02:50:39,663 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2018-12-03 02:50:40,468 WARN L180 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2018-12-03 02:50:40,974 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2018-12-03 02:50:41,754 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2018-12-03 02:50:42,344 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2018-12-03 02:50:43,086 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2018-12-03 02:50:43,596 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2018-12-03 02:50:44,348 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2018-12-03 02:50:44,861 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2018-12-03 02:50:45,473 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2018-12-03 02:50:46,648 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2018-12-03 02:50:47,562 WARN L180 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2018-12-03 02:50:48,410 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2018-12-03 02:50:48,817 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2018-12-03 02:50:49,317 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2018-12-03 02:50:49,807 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-12-03 02:50:51,173 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2018-12-03 02:50:53,408 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2018-12-03 02:50:53,903 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2018-12-03 02:50:54,500 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2018-12-03 02:50:55,082 WARN L180 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2018-12-03 02:50:55,687 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 84 [2018-12-03 02:50:56,206 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2018-12-03 02:50:56,800 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2018-12-03 02:50:57,412 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2018-12-03 02:50:58,052 WARN L180 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2018-12-03 02:50:59,902 WARN L180 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2018-12-03 02:51:00,428 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2018-12-03 02:51:00,979 WARN L180 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2018-12-03 02:51:01,605 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2018-12-03 02:51:02,238 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2018-12-03 02:51:02,933 WARN L180 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2018-12-03 02:51:03,436 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2018-12-03 02:51:04,094 WARN L180 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2018-12-03 02:51:04,715 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2018-12-03 02:51:05,320 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2018-12-03 02:51:05,741 WARN L180 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2018-12-03 02:51:06,532 WARN L180 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 77 [2018-12-03 02:51:07,656 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2018-12-03 02:51:08,417 WARN L180 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2018-12-03 02:51:09,234 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 74 [2018-12-03 02:51:10,066 WARN L180 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2018-12-03 02:51:10,564 WARN L180 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74 [2018-12-03 02:51:11,255 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2018-12-03 02:51:12,560 WARN L180 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2018-12-03 02:51:13,339 WARN L180 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 95 [2018-12-03 02:51:14,192 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2018-12-03 02:51:14,856 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2018-12-03 02:51:15,490 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2018-12-03 02:51:16,332 WARN L180 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 88 [2018-12-03 02:51:29,704 WARN L180 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-12-03 02:51:30,577 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 81 [2018-12-03 02:51:31,232 WARN L180 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2018-12-03 02:51:31,963 WARN L180 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 89 [2018-12-03 02:51:32,843 WARN L180 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 92 [2018-12-03 02:51:33,618 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2018-12-03 02:51:34,924 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2018-12-03 02:51:35,409 WARN L180 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2018-12-03 02:51:35,996 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2018-12-03 02:51:36,676 WARN L180 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 88 [2018-12-03 02:51:37,752 WARN L180 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2018-12-03 02:51:38,692 WARN L180 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2018-12-03 02:51:39,860 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2018-12-03 02:51:40,332 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2018-12-03 02:51:40,893 WARN L180 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2018-12-03 02:51:41,462 WARN L180 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2018-12-03 02:51:42,545 WARN L180 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 89 [2018-12-03 02:51:43,391 WARN L180 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 85 [2018-12-03 02:51:44,671 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2018-12-03 02:51:45,186 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2018-12-03 02:51:46,003 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 79 [2018-12-03 02:51:47,762 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-12-03 02:51:48,799 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2018-12-03 02:51:49,262 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2018-12-03 02:51:49,922 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2018-12-03 02:51:50,585 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2018-12-03 02:51:51,250 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2018-12-03 02:51:51,934 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2018-12-03 02:51:52,414 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2018-12-03 02:51:53,064 WARN L180 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2018-12-03 02:51:53,751 WARN L180 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2018-12-03 02:51:54,690 WARN L180 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2018-12-03 02:51:55,802 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2018-12-03 02:51:56,558 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2018-12-03 02:51:57,602 WARN L180 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2018-12-03 02:51:58,177 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 74 [2018-12-03 02:51:58,684 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 77 [2018-12-03 02:51:59,381 WARN L180 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2018-12-03 02:52:00,077 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 86 [2018-12-03 02:52:03,441 WARN L180 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2018-12-03 02:52:04,087 WARN L180 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2018-12-03 02:52:04,563 WARN L180 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2018-12-03 02:52:05,221 WARN L180 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 85 [2018-12-03 02:52:05,895 WARN L180 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2018-12-03 02:52:06,334 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2018-12-03 02:52:06,726 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2018-12-03 02:52:07,813 WARN L180 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2018-12-03 02:52:08,383 WARN L180 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2018-12-03 02:52:09,228 WARN L180 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2018-12-03 02:52:09,979 WARN L180 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2018-12-03 02:52:10,907 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2018-12-03 02:52:11,450 WARN L180 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2018-12-03 02:52:12,076 WARN L180 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 86 [2018-12-03 02:52:12,695 WARN L180 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2018-12-03 02:52:13,190 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2018-12-03 02:52:14,242 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2018-12-03 02:52:14,811 WARN L180 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2018-12-03 02:52:15,551 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2018-12-03 02:52:16,162 WARN L180 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 86 [2018-12-03 02:52:17,013 WARN L180 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 91 [2018-12-03 02:52:17,795 WARN L180 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 91 [2018-12-03 02:52:18,382 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2018-12-03 02:52:18,966 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2018-12-03 02:52:19,659 WARN L180 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2018-12-03 02:52:20,220 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2018-12-03 02:52:21,237 WARN L180 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 89 [2018-12-03 02:52:21,768 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2018-12-03 02:52:22,395 WARN L180 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2018-12-03 02:52:23,464 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2018-12-03 02:52:23,990 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 81 [2018-12-03 02:52:24,601 WARN L180 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2018-12-03 02:52:25,107 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2018-12-03 02:52:25,694 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2018-12-03 02:52:26,468 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2018-12-03 02:52:27,030 WARN L180 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2018-12-03 02:52:28,344 WARN L180 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2018-12-03 02:52:29,168 WARN L180 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2018-12-03 02:52:29,974 WARN L180 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2018-12-03 02:52:31,043 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 86 [2018-12-03 02:52:31,671 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 89 [2018-12-03 02:52:32,523 WARN L180 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 94 [2018-12-03 02:52:32,962 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2018-12-03 02:52:33,565 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2018-12-03 02:52:34,106 WARN L180 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 84 [2018-12-03 02:52:34,749 WARN L180 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 85 [2018-12-03 02:52:35,403 WARN L180 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 90 [2018-12-03 02:52:36,022 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2018-12-03 02:52:36,628 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2018-12-03 02:52:37,718 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2018-12-03 02:52:38,813 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2018-12-03 02:52:39,619 WARN L180 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 74 [2018-12-03 02:52:40,185 WARN L180 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-12-03 02:52:41,537 WARN L180 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2018-12-03 02:52:43,837 WARN L180 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2018-12-03 02:52:44,113 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-12-03 02:52:44,578 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-12-03 02:52:44,917 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-12-03 02:52:45,272 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-03 02:52:45,688 WARN L180 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-12-03 02:52:46,505 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-03 02:52:46,995 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2018-12-03 02:52:47,394 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-03 02:52:47,876 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2018-12-03 02:52:48,410 WARN L180 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2018-12-03 02:52:48,738 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-12-03 02:52:49,284 WARN L180 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2018-12-03 02:52:49,764 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2018-12-03 02:52:50,216 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2018-12-03 02:52:51,536 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:52:52,062 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2018-12-03 02:52:52,552 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2018-12-03 02:52:53,727 WARN L180 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 95 [2018-12-03 02:52:54,485 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2018-12-03 02:52:55,219 WARN L180 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2018-12-03 02:52:55,497 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-12-03 02:52:56,032 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2018-12-03 02:52:56,803 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-12-03 02:52:57,534 WARN L180 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2018-12-03 02:52:57,843 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:52:59,024 WARN L180 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2018-12-03 02:53:00,580 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:53:01,006 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-12-03 02:53:01,396 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2018-12-03 02:53:02,252 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:53:02,693 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-12-03 02:53:03,184 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2018-12-03 02:53:03,857 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2018-12-03 02:53:04,281 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-03 02:53:04,667 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:53:08,290 WARN L180 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2018-12-03 02:53:09,013 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2018-12-03 02:53:09,464 WARN L180 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-12-03 02:53:10,101 WARN L180 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2018-12-03 02:53:10,692 WARN L180 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2018-12-03 02:53:11,145 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:53:11,999 WARN L180 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2018-12-03 02:53:12,389 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-12-03 02:53:13,227 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78 [2018-12-03 02:53:13,668 WARN L180 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2018-12-03 02:53:14,836 WARN L180 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 81 [2018-12-03 02:53:15,782 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-12-03 02:53:22,162 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2018-12-03 02:53:22,457 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-12-03 02:53:22,985 WARN L180 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2018-12-03 02:53:23,204 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2018-12-03 02:53:23,757 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2018-12-03 02:53:24,503 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2018-12-03 02:53:25,320 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-03 02:53:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:53:27,088 INFO L93 Difference]: Finished difference Result 23155 states and 57347 transitions. [2018-12-03 02:53:27,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 318 states. [2018-12-03 02:53:27,088 INFO L78 Accepts]: Start accepts. Automaton has 82 states. Word has length 253 [2018-12-03 02:53:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:53:27,093 INFO L225 Difference]: With dead ends: 23155 [2018-12-03 02:53:27,093 INFO L226 Difference]: Without dead ends: 7690 [2018-12-03 02:53:27,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 969 GetRequests, 569 SyntacticMatches, 7 SemanticMatches, 393 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58605 ImplicationChecksByTransitivity, 144.0s TimeCoverageRelationStatistics Valid=9986, Invalid=145644, Unknown=0, NotChecked=0, Total=155630 [2018-12-03 02:53:27,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7690 states. [2018-12-03 02:53:27,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7690 to 7402. [2018-12-03 02:53:27,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7402 states. [2018-12-03 02:53:27,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7402 states to 7402 states and 18379 transitions. [2018-12-03 02:53:27,145 INFO L78 Accepts]: Start accepts. Automaton has 7402 states and 18379 transitions. Word has length 253 [2018-12-03 02:53:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:53:27,146 INFO L480 AbstractCegarLoop]: Abstraction has 7402 states and 18379 transitions. [2018-12-03 02:53:27,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 82 states. [2018-12-03 02:53:27,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7402 states and 18379 transitions. [2018-12-03 02:53:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-12-03 02:53:27,167 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 02:53:27,168 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 02:53:27,168 INFO L423 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 02:53:27,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 02:53:27,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1264137373, now seen corresponding path program 4 times [2018-12-03 02:53:27,168 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-03 02:53:27,168 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/cvc4 Starting monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-03 02:53:27,184 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-03 02:53:27,571 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-03 02:53:27,571 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:53:27,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:53:27,772 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 02:53:27,774 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-03 02:53:27,775 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:27,777 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:27,788 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:27,789 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-12-03 02:53:28,069 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:53:28,076 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:53:28,081 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:53:28,081 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,094 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,115 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,115 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:53:28,488 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:53:28,492 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:53:28,494 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:53:28,494 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,502 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,513 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,513 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:53:28,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:53:28,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:53:28,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:53:28,847 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,857 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,874 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:28,875 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:53:29,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:53:29,224 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:53:29,226 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:53:29,226 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:29,235 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:29,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:29,246 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:53:30,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-03 02:53:30,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-03 02:53:30,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:30,262 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:30,263 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:30,263 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 02:53:30,717 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:53:30,717 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:53:39,779 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-12-03 02:53:39,781 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:53:39,781 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:39,782 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:39,786 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-12-03 02:53:39,790 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:53:39,790 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:39,793 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:39,815 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-03 02:53:39,815 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:24, output treesize:21 [2018-12-03 02:53:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 24 proven. 504 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:53:41,057 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 02:53:41,057 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 02:53:41,064 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-03 02:53:41,118 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-03 02:53:41,118 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 02:53:41,125 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 02:53:41,132 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 12 [2018-12-03 02:53:41,134 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2018-12-03 02:53:41,134 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,137 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,147 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,147 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:18 [2018-12-03 02:53:41,156 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:53:41,160 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:53:41,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:53:41,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,171 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,182 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:53:41,190 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:53:41,193 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:53:41,195 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:53:41,196 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,203 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,214 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,214 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:53:41,221 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:53:41,225 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:53:41,227 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:53:41,227 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,235 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,246 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,247 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:53:41,254 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-12-03 02:53:41,258 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 02:53:41,260 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 27 [2018-12-03 02:53:41,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,279 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,280 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:16 [2018-12-03 02:53:41,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-12-03 02:53:41,318 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-12-03 02:53:41,318 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,320 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,322 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:41,322 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-12-03 02:53:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:53:41,524 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 02:53:42,128 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2018-12-03 02:53:42,130 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:53:42,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:42,132 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:42,136 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2018-12-03 02:53:42,139 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2018-12-03 02:53:42,139 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-03 02:53:42,143 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 02:53:42,165 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-12-03 02:53:42,165 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:24, output treesize:21 [2018-12-03 02:53:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 24 proven. 504 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 02:53:42,488 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-12-03 02:53:42,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 48, 50, 48] total 96 [2018-12-03 02:53:42,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 96 states [2018-12-03 02:53:42,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2018-12-03 02:53:42,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=8801, Unknown=0, NotChecked=0, Total=9120 [2018-12-03 02:53:42,489 INFO L87 Difference]: Start difference. First operand 7402 states and 18379 transitions. Second operand 96 states. [2018-12-03 02:53:49,537 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2018-12-03 02:53:50,052 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-12-03 02:53:50,783 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2018-12-03 02:53:52,055 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-12-03 02:53:52,653 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2018-12-03 02:53:53,081 WARN L180 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2018-12-03 02:53:53,780 WARN L180 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2018-12-03 02:53:54,249 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2018-12-03 02:53:54,983 WARN L180 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 58 [2018-12-03 02:53:55,600 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2018-12-03 02:53:56,323 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2018-12-03 02:53:57,185 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2018-12-03 02:53:58,175 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2018-12-03 02:53:58,710 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2018-12-03 02:53:59,431 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2018-12-03 02:53:59,946 WARN L180 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2018-12-03 02:54:00,722 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2018-12-03 02:54:01,296 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2018-12-03 02:54:02,166 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2018-12-03 02:54:02,882 WARN L180 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 78 [2018-12-03 02:54:03,640 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2018-12-03 02:54:04,637 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2018-12-03 02:54:05,696 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2018-12-03 02:54:06,310 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2018-12-03 02:54:07,079 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2018-12-03 02:54:07,637 WARN L180 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 73 [2018-12-03 02:54:08,776 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 77 [2018-12-03 02:54:09,419 WARN L180 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2018-12-03 02:54:10,357 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2018-12-03 02:54:11,072 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 79 [2018-12-03 02:54:11,936 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2018-12-03 02:54:13,371 WARN L180 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 83 [2018-12-03 02:54:14,637 WARN L180 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 91 [2018-12-03 02:54:16,342 WARN L180 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 94 [2018-12-03 02:54:17,410 WARN L180 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 81 [2018-12-03 02:54:18,081 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2018-12-03 02:54:19,070 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 83 [2018-12-03 02:54:20,183 WARN L180 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 90 [2018-12-03 02:54:21,305 WARN L180 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 94 [2018-12-03 02:54:22,510 WARN L180 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 98 [2018-12-03 02:54:23,725 WARN L180 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 94 [2018-12-03 02:54:24,655 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 87 [2018-12-03 02:54:25,524 WARN L180 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 90 [2018-12-03 02:54:28,653 WARN L180 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 94 [2018-12-03 02:54:29,576 WARN L180 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 90 [2018-12-03 02:54:30,572 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2018-12-03 02:54:31,568 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 84 [2018-12-03 02:54:33,140 WARN L180 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 87 [2018-12-03 02:54:33,950 WARN L180 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2018-12-03 02:54:34,656 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2018-12-03 02:54:35,505 WARN L180 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 77 [2018-12-03 02:54:36,463 WARN L180 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2018-12-03 02:54:37,486 WARN L180 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 88 [2018-12-03 02:54:38,626 WARN L180 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 92 [2018-12-03 02:54:39,808 WARN L180 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 88 [2018-12-03 02:54:40,644 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2018-12-03 02:54:41,404 WARN L180 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2018-12-03 02:54:43,864 WARN L180 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 88 [2018-12-03 02:54:44,522 WARN L180 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 84 [2018-12-03 02:54:45,205 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2018-12-03 02:54:45,961 WARN L180 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2018-12-03 02:54:47,224 WARN L180 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2018-12-03 02:54:47,936 WARN L180 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2018-12-03 02:54:48,567 WARN L180 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2018-12-03 02:54:49,380 WARN L180 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 69 [2018-12-03 02:54:50,292 WARN L180 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2018-12-03 02:54:51,200 WARN L180 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2018-12-03 02:54:52,146 WARN L180 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2018-12-03 02:54:53,043 WARN L180 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2018-12-03 02:54:53,765 WARN L180 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73 [2018-12-03 02:54:54,453 WARN L180 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2018-12-03 02:54:56,780 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2018-12-03 02:54:57,436 WARN L180 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2018-12-03 02:54:58,155 WARN L180 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2018-12-03 02:54:58,822 WARN L180 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2018-12-03 02:55:00,001 WARN L180 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 73 [2018-12-03 02:55:00,533 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-12-03 02:55:01,438 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-12-03 02:55:02,028 WARN L180 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-12-03 02:55:02,578 WARN L180 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-03 02:55:03,197 WARN L180 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2018-12-03 02:55:03,888 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-12-03 02:55:04,351 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-12-03 02:55:04,788 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2018-12-03 02:55:06,306 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2018-12-03 02:55:06,655 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2018-12-03 02:55:07,352 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-12-03 02:55:07,822 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-12-03 02:55:11,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 02:55:11,216 INFO L93 Difference]: Finished difference Result 7522 states and 18554 transitions. [2018-12-03 02:55:11,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2018-12-03 02:55:11,217 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 309 [2018-12-03 02:55:11,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 02:55:11,217 INFO L225 Difference]: With dead ends: 7522 [2018-12-03 02:55:11,217 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 02:55:11,218 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1404 GetRequests, 1178 SyntacticMatches, 12 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14052 ImplicationChecksByTransitivity, 65.2s TimeCoverageRelationStatistics Valid=3354, Invalid=43086, Unknown=0, NotChecked=0, Total=46440 [2018-12-03 02:55:11,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 02:55:11,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 02:55:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 02:55:11,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 02:55:11,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 309 [2018-12-03 02:55:11,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 02:55:11,219 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 02:55:11,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 96 states. [2018-12-03 02:55:11,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 02:55:11,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 02:55:11,221 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-03 02:55:11,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 02:55:11 BasicIcfg [2018-12-03 02:55:11,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 02:55:11,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 02:55:11,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 02:55:11,222 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 02:55:11,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:43:47" (3/4) ... [2018-12-03 02:55:11,225 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 02:55:11,229 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2018-12-03 02:55:11,229 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2018-12-03 02:55:11,231 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-03 02:55:11,231 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 02:55:11,231 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 02:55:11,251 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_17a26909-9a07-4c6c-a765-f4c73b787017/bin-2019/utaipan/witness.graphml [2018-12-03 02:55:11,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 02:55:11,252 INFO L168 Benchmark]: Toolchain (without parser) took 684677.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.4 MB). Free memory was 939.4 MB in the beginning and 951.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 180.6 MB. Max. memory is 11.5 GB. [2018-12-03 02:55:11,252 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:55:11,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -141.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2018-12-03 02:55:11,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:55:11,252 INFO L168 Benchmark]: Boogie Preprocessor took 20.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 02:55:11,252 INFO L168 Benchmark]: RCFGBuilder took 293.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2018-12-03 02:55:11,252 INFO L168 Benchmark]: TraceAbstraction took 683884.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.0 GB in the beginning and 958.1 MB in the end (delta: 77.8 MB). Peak memory consumption was 135.0 MB. Max. memory is 11.5 GB. [2018-12-03 02:55:11,252 INFO L168 Benchmark]: Witness Printer took 29.51 ms. Allocated memory is still 1.2 GB. Free memory was 958.1 MB in the beginning and 951.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-03 02:55:11,253 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 416.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -141.9 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 293.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 683884.16 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.0 GB in the beginning and 958.1 MB in the end (delta: 77.8 MB). Peak memory consumption was 135.0 MB. Max. memory is 11.5 GB. * Witness Printer took 29.51 ms. Allocated memory is still 1.2 GB. Free memory was 958.1 MB in the beginning and 951.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1860]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1860]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1860]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1860]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 201 locations, 4 error locations. SAFE Result, 683.8s OverallTime, 17 OverallIterations, 6 TraceHistogramMax, 636.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9440 SDtfs, 61859 SDslu, 225539 SDs, 0 SdLazy, 64638 SolverSat, 2871 SolverUnsat, 22 SolverUnknown, 0 SolverNotchecked, 207.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9999 GetRequests, 8175 SyntacticMatches, 43 SemanticMatches, 1781 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171980 ImplicationChecksByTransitivity, 442.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21688occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 123630 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 40.7s InterpolantComputationTime, 4201 NumberOfCodeBlocks, 4201 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 8020 ConstructedInterpolants, 135 QuantifiedInterpolants, 13278617 SizeOfPredicates, 556 NumberOfNonLiveVariables, 5640 ConjunctsInSsa, 538 ConjunctsInUnsatCore, 47 InterpolantComputations, 7 PerfectInterpolantSequences, 866/8716 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...