./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/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 279fae57395782089eff32ec1396d1726d808c7f ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/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 279fae57395782089eff32ec1396d1726d808c7f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:54:13,527 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:54:13,528 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:54:13,535 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:54:13,535 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:54:13,536 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:54:13,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:54:13,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:54:13,538 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:54:13,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:54:13,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:54:13,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:54:13,540 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:54:13,541 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:54:13,541 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:54:13,542 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:54:13,542 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:54:13,543 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:54:13,544 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:54:13,545 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:54:13,546 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:54:13,547 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:54:13,548 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:54:13,548 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:54:13,548 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:54:13,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:54:13,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:54:13,550 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:54:13,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:54:13,551 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:54:13,551 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:54:13,552 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:54:13,552 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:54:13,552 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:54:13,553 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:54:13,553 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:54:13,553 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 04:54:13,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:54:13,563 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:54:13,563 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:54:13,564 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:54:13,564 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:54:13,564 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:54:13,564 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 04:54:13,564 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:54:13,564 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 04:54:13,564 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 04:54:13,564 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:54:13,565 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:54:13,565 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:54:13,565 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:54:13,565 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:54:13,565 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:54:13,565 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:54:13,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:54:13,566 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:54:13,566 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:54:13,566 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:54:13,566 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:54:13,566 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:54:13,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:54:13,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:54:13,566 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:54:13,566 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:54:13,567 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:54:13,567 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:54:13,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:54:13,567 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 04:54:13,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:54:13,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:54:13,567 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 04:54:13,567 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_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/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 -> 279fae57395782089eff32ec1396d1726d808c7f [2018-11-10 04:54:13,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:54:13,599 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:54:13,602 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:54:13,603 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:54:13,603 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:54:13,604 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/../../sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i [2018-11-10 04:54:13,647 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data/325f8dff6/4d2cf45145cc4d71a0f92ae35f380e3f/FLAG6738b1118 [2018-11-10 04:54:14,036 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:54:14,036 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i [2018-11-10 04:54:14,040 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data/325f8dff6/4d2cf45145cc4d71a0f92ae35f380e3f/FLAG6738b1118 [2018-11-10 04:54:14,048 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data/325f8dff6/4d2cf45145cc4d71a0f92ae35f380e3f [2018-11-10 04:54:14,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:54:14,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:54:14,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:54:14,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:54:14,054 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:54:14,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24840ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14, skipping insertion in model container [2018-11-10 04:54:14,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:54:14,078 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:54:14,173 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:54:14,177 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:54:14,192 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:54:14,201 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:54:14,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14 WrapperNode [2018-11-10 04:54:14,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:54:14,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:54:14,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:54:14,202 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:54:14,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:54:14,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:54:14,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:54:14,236 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:54:14,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... [2018-11-10 04:54:14,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:54:14,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:54:14,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:54:14,259 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:54:14,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/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 [2018-11-10 04:54:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:54:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:54:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:54:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:54:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:54:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:54:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2018-11-10 04:54:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2018-11-10 04:54:14,333 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2018-11-10 04:54:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2018-11-10 04:54:14,590 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:54:14,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:54:14 BoogieIcfgContainer [2018-11-10 04:54:14,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:54:14,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:54:14,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:54:14,594 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:54:14,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:54:14" (1/3) ... [2018-11-10 04:54:14,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a12c9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:54:14, skipping insertion in model container [2018-11-10 04:54:14,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:14" (2/3) ... [2018-11-10 04:54:14,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a12c9c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:54:14, skipping insertion in model container [2018-11-10 04:54:14,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:54:14" (3/3) ... [2018-11-10 04:54:14,597 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum_false-unreach-call_true-termination.i [2018-11-10 04:54:14,605 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:54:14,611 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:54:14,625 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:54:14,651 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:54:14,651 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:54:14,651 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:54:14,651 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:54:14,651 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:54:14,652 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:54:14,652 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:54:14,652 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:54:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-10 04:54:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 04:54:14,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:14,673 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:14,674 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:14,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:14,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1453479608, now seen corresponding path program 1 times [2018-11-10 04:54:14,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:54:14,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:54:14,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:14,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:54:14,713 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:54:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:14,780 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2018-11-10 04:54:14,781 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:54:14,781 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 04:54:14,781 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-11-10 04:54:14,783 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [10], [12], [14], [27], [29], [31], [34], [35], [46], [64], [68], [70], [71], [84], [86], [87], [88], [89], [91], [92], [93], [94], [95], [96], [97], [98] [2018-11-10 04:54:14,814 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:54:14,814 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:54:14,929 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 04:54:14,930 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 40 variables. [2018-11-10 04:54:14,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:14,935 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 04:54:15,013 INFO L227 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 89.94% of their original sizes. [2018-11-10 04:54:15,013 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 04:54:15,069 INFO L415 sIntCurrentIteration]: We unified 37 AI predicates to 37 [2018-11-10 04:54:15,069 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 04:54:15,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:54:15,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:54:15,071 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:54:15,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:54:15,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:54:15,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:54:15,078 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 6 states. [2018-11-10 04:54:15,310 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:54:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:15,550 INFO L93 Difference]: Finished difference Result 77 states and 98 transitions. [2018-11-10 04:54:15,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:54:15,552 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-11-10 04:54:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:15,560 INFO L225 Difference]: With dead ends: 77 [2018-11-10 04:54:15,560 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 04:54:15,563 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:54:15,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 04:54:15,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 04:54:15,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 04:54:15,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-10 04:54:15,597 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 38 [2018-11-10 04:54:15,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:15,597 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-10 04:54:15,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:54:15,597 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-10 04:54:15,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-10 04:54:15,599 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:15,599 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:15,599 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:15,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:15,599 INFO L82 PathProgramCache]: Analyzing trace with hash -538232150, now seen corresponding path program 1 times [2018-11-10 04:54:15,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:54:15,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:54:15,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:15,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:54:15,600 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:54:15,613 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 04:54:15,613 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 04:54:15,613 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 04:54:15,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:15,620 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 04:54:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:15,651 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 44 with the following transitions: [2018-11-10 04:54:15,652 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [10], [12], [14], [18], [21], [29], [31], [34], [35], [46], [50], [53], [68], [70], [71], [75], [78], [86], [87], [88], [89], [91], [92], [93], [94], [95], [96], [97], [98] [2018-11-10 04:54:15,654 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:54:15,654 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:54:15,672 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 04:54:15,672 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 40 variables. [2018-11-10 04:54:15,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:15,674 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 04:54:15,708 INFO L227 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 88.22% of their original sizes. [2018-11-10 04:54:15,708 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 04:54:15,742 INFO L415 sIntCurrentIteration]: We unified 42 AI predicates to 42 [2018-11-10 04:54:15,742 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 04:54:15,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:54:15,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:54:15,742 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:54:15,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:54:15,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:54:15,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:54:15,745 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 6 states. [2018-11-10 04:54:15,913 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:54:16,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:16,096 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-11-10 04:54:16,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:54:16,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-11-10 04:54:16,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:16,097 INFO L225 Difference]: With dead ends: 63 [2018-11-10 04:54:16,097 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 04:54:16,098 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:54:16,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 04:54:16,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2018-11-10 04:54:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-10 04:54:16,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2018-11-10 04:54:16,105 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 43 [2018-11-10 04:54:16,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:16,105 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2018-11-10 04:54:16,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:54:16,105 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2018-11-10 04:54:16,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 04:54:16,106 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:16,107 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:16,107 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:16,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:16,107 INFO L82 PathProgramCache]: Analyzing trace with hash 141576777, now seen corresponding path program 1 times [2018-11-10 04:54:16,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:54:16,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:54:16,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:16,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:54:16,108 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:54:16,120 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 04:54:16,120 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 04:54:16,121 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 04:54:16,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:16,134 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 04:54:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:16,160 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2018-11-10 04:54:16,160 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [10], [12], [14], [18], [21], [29], [31], [34], [35], [46], [50], [53], [68], [70], [71], [75], [78], [80], [82], [86], [87], [88], [89], [91], [92], [93], [94], [95], [96], [97], [98] [2018-11-10 04:54:16,162 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:54:16,162 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:54:16,379 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 04:54:16,380 INFO L272 AbstractInterpreter]: Visited 20 different actions 94 times. Merged at 7 different actions 48 times. Widened at 1 different actions 4 times. Found 1 fixpoints after 1 different actions. Largest state had 40 variables. [2018-11-10 04:54:16,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:16,383 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 04:54:16,457 INFO L227 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 81.22% of their original sizes. [2018-11-10 04:54:16,457 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 04:54:16,608 INFO L415 sIntCurrentIteration]: We unified 45 AI predicates to 45 [2018-11-10 04:54:16,608 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 04:54:16,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:54:16,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 04:54:16,609 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:54:16,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 04:54:16,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 04:54:16,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-10 04:54:16,610 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 11 states. [2018-11-10 04:54:16,984 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:54:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:17,406 INFO L93 Difference]: Finished difference Result 62 states and 77 transitions. [2018-11-10 04:54:17,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 04:54:17,406 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 46 [2018-11-10 04:54:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:17,407 INFO L225 Difference]: With dead ends: 62 [2018-11-10 04:54:17,407 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 04:54:17,407 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-11-10 04:54:17,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 04:54:17,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2018-11-10 04:54:17,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-10 04:54:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2018-11-10 04:54:17,413 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 46 [2018-11-10 04:54:17,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:17,413 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2018-11-10 04:54:17,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 04:54:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2018-11-10 04:54:17,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-11-10 04:54:17,415 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:17,415 INFO L375 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:17,415 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:17,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:17,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1351012478, now seen corresponding path program 1 times [2018-11-10 04:54:17,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:54:17,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:54:17,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:17,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:54:17,416 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:54:17,435 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 04:54:17,435 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 04:54:17,435 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 04:54:17,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:17,450 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 04:54:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:17,480 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 59 with the following transitions: [2018-11-10 04:54:17,481 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [10], [12], [14], [18], [21], [29], [31], [34], [35], [46], [50], [53], [55], [60], [62], [68], [70], [71], [75], [78], [80], [82], [86], [87], [88], [89], [91], [92], [93], [94], [95], [96], [97], [98] [2018-11-10 04:54:17,482 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:54:17,483 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:54:17,590 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 04:54:17,685 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.NullPointerException 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.interval.IntervalDomainValue.(IntervalDomainValue.java:95) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.interval.IntervalDomainValue.inverseLessOrEqual(IntervalDomainValue.java:1663) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.interval.IntervalDomainValue.inverseLessOrEqual(IntervalDomainValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.inverseEvaluate(BinaryExpressionEvaluator.java:397) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.inverseEvaluate(BinaryExpressionEvaluator.java:302) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:374) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctAssumeProcessor.projectAssumeOnIntervals(OctAssumeProcessor.java:563) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctAssumeProcessor.processNumericRelationWithoutIfs(OctAssumeProcessor.java:347) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctAssumeProcessor.processNumericRelation(OctAssumeProcessor.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctAssumeProcessor.processBooleanOperations(OctAssumeProcessor.java:168) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctAssumeProcessor.assume(OctAssumeProcessor.java:98) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.IfExpressionTree.assumeLeafs(IfExpressionTree.java:315) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctAssumeProcessor.processNumericRelation(OctAssumeProcessor.java:304) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctAssumeProcessor.processBooleanOperations(OctAssumeProcessor.java:168) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctAssumeProcessor.assume(OctAssumeProcessor.java:98) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctStatementProcessor.processStatement(OctStatementProcessor.java:68) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctPostOperator.apply(OctPostOperator.java:202) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.relational.octagon.OctPostOperator.apply(OctPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:334) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:530) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:334) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:385) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-10 04:54:17,695 INFO L168 Benchmark]: Toolchain (without parser) took 3644.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 184.5 MB). Free memory was 960.3 MB in the beginning and 935.8 MB in the end (delta: 24.5 MB). Peak memory consumption was 283.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:17,696 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:54:17,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.28 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:17,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:17,697 INFO L168 Benchmark]: Boogie Preprocessor took 22.74 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 944.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:17,700 INFO L168 Benchmark]: RCFGBuilder took 331.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:17,700 INFO L168 Benchmark]: TraceAbstraction took 3102.80 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 935.8 MB in the end (delta: 168.8 MB). Peak memory consumption was 300.6 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:17,703 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.28 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.74 ms. Allocated memory is still 1.0 GB. Free memory was 946.9 MB in the beginning and 944.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 331.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 944.2 MB in the beginning and 1.1 GB in the end (delta: -160.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3102.80 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 935.8 MB in the end (delta: 168.8 MB). Peak memory consumption was 300.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.NullPointerException de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.NullPointerException: 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 0.1.23-1dbac8b [2018-11-10 04:54:19,124 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:54:19,125 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:54:19,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:54:19,132 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:54:19,133 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:54:19,133 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:54:19,134 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:54:19,135 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:54:19,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:54:19,137 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:54:19,137 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:54:19,137 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:54:19,138 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:54:19,139 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:54:19,139 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:54:19,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:54:19,141 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:54:19,142 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:54:19,143 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:54:19,144 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:54:19,145 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:54:19,147 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:54:19,147 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:54:19,147 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:54:19,148 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:54:19,148 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:54:19,149 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:54:19,150 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:54:19,150 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:54:19,151 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:54:19,151 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:54:19,151 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:54:19,151 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:54:19,152 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:54:19,153 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:54:19,153 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 04:54:19,163 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:54:19,163 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:54:19,164 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:54:19,164 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:54:19,164 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:54:19,164 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:54:19,164 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:54:19,164 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:54:19,165 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:54:19,165 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:54:19,165 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:54:19,165 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:54:19,165 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:54:19,165 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:54:19,165 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:54:19,166 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 04:54:19,166 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 04:54:19,166 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:54:19,166 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:54:19,166 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:54:19,166 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:54:19,166 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:54:19,166 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:54:19,167 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:54:19,167 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:54:19,167 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:54:19,167 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:54:19,167 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:54:19,167 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 04:54:19,167 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:54:19,167 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 04:54:19,167 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 04:54:19,167 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_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/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 -> 279fae57395782089eff32ec1396d1726d808c7f [2018-11-10 04:54:19,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:54:19,203 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:54:19,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:54:19,206 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:54:19,206 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:54:19,206 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/../../sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i [2018-11-10 04:54:19,242 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data/94d72dc60/88b3f588d2be463d85d5451c02f0e1a2/FLAG41dece4c9 [2018-11-10 04:54:19,539 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:54:19,539 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/sv-benchmarks/c/reducercommutativity/rangesum_false-unreach-call_true-termination.i [2018-11-10 04:54:19,543 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data/94d72dc60/88b3f588d2be463d85d5451c02f0e1a2/FLAG41dece4c9 [2018-11-10 04:54:19,552 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/data/94d72dc60/88b3f588d2be463d85d5451c02f0e1a2 [2018-11-10 04:54:19,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:54:19,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:54:19,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:54:19,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:54:19,558 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:54:19,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dce10a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19, skipping insertion in model container [2018-11-10 04:54:19,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:54:19,583 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:54:19,708 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:54:19,716 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:54:19,734 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:54:19,746 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:54:19,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19 WrapperNode [2018-11-10 04:54:19,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:54:19,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:54:19,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:54:19,747 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:54:19,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:54:19,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:54:19,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:54:19,772 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:54:19,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... [2018-11-10 04:54:19,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:54:19,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:54:19,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:54:19,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:54:19,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/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 [2018-11-10 04:54:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:54:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:54:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:54:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:54:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:54:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:54:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2018-11-10 04:54:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2018-11-10 04:54:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure init_nondet [2018-11-10 04:54:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure init_nondet [2018-11-10 04:54:20,477 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:54:20,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:54:20 BoogieIcfgContainer [2018-11-10 04:54:20,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:54:20,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:54:20,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:54:20,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:54:20,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:54:19" (1/3) ... [2018-11-10 04:54:20,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c0ed33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:54:20, skipping insertion in model container [2018-11-10 04:54:20,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:54:19" (2/3) ... [2018-11-10 04:54:20,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c0ed33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:54:20, skipping insertion in model container [2018-11-10 04:54:20,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:54:20" (3/3) ... [2018-11-10 04:54:20,483 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum_false-unreach-call_true-termination.i [2018-11-10 04:54:20,488 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:54:20,494 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:54:20,503 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:54:20,522 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:54:20,523 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:54:20,523 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:54:20,523 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:54:20,523 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:54:20,523 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:54:20,523 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:54:20,523 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:54:20,524 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:54:20,534 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-10 04:54:20,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-10 04:54:20,539 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:20,540 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:20,542 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:20,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:20,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1453479608, now seen corresponding path program 1 times [2018-11-10 04:54:20,548 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:54:20,548 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:54:20,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:20,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:20,642 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 04:54:20,642 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:54:20,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:54:20,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 04:54:20,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 04:54:20,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 04:54:20,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:54:20,658 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-10 04:54:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:20,673 INFO L93 Difference]: Finished difference Result 72 states and 94 transitions. [2018-11-10 04:54:20,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 04:54:20,674 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 38 [2018-11-10 04:54:20,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:20,680 INFO L225 Difference]: With dead ends: 72 [2018-11-10 04:54:20,680 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 04:54:20,682 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:54:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 04:54:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 04:54:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 04:54:20,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-10 04:54:20,707 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 38 [2018-11-10 04:54:20,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:20,707 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-10 04:54:20,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 04:54:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-10 04:54:20,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-10 04:54:20,709 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:20,709 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:20,709 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:20,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:20,710 INFO L82 PathProgramCache]: Analyzing trace with hash -538232150, now seen corresponding path program 1 times [2018-11-10 04:54:20,710 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:54:20,710 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:54:20,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:20,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-10 04:54:20,790 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:54:20,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:54:20,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 04:54:20,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:54:20,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:54:20,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:54:20,796 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 3 states. [2018-11-10 04:54:20,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:20,900 INFO L93 Difference]: Finished difference Result 63 states and 81 transitions. [2018-11-10 04:54:20,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:54:20,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2018-11-10 04:54:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:20,902 INFO L225 Difference]: With dead ends: 63 [2018-11-10 04:54:20,902 INFO L226 Difference]: Without dead ends: 43 [2018-11-10 04:54:20,903 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 04:54:20,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-10 04:54:20,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2018-11-10 04:54:20,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-10 04:54:20,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-10 04:54:20,909 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 43 [2018-11-10 04:54:20,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:20,909 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-10 04:54:20,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:54:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-10 04:54:20,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-10 04:54:20,910 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:20,910 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:20,910 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:20,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:20,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1233502645, now seen corresponding path program 1 times [2018-11-10 04:54:20,911 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:54:20,911 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:54:20,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:21,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 04:54:21,038 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:54:21,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:54:21,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:54:21,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 04:54:21,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:54:21,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:54:21,043 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 4 states. [2018-11-10 04:54:21,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:21,153 INFO L93 Difference]: Finished difference Result 73 states and 89 transitions. [2018-11-10 04:54:21,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 04:54:21,153 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-10 04:54:21,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:21,154 INFO L225 Difference]: With dead ends: 73 [2018-11-10 04:54:21,154 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 04:54:21,155 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:54:21,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 04:54:21,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2018-11-10 04:54:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-10 04:54:21,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-11-10 04:54:21,160 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 43 [2018-11-10 04:54:21,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:21,160 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-11-10 04:54:21,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 04:54:21,161 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-11-10 04:54:21,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-10 04:54:21,162 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:21,162 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:21,162 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:21,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:21,162 INFO L82 PathProgramCache]: Analyzing trace with hash -553693718, now seen corresponding path program 1 times [2018-11-10 04:54:21,163 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:54:21,163 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:54:21,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:21,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:21,260 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 04:54:21,260 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:54:21,350 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-10 04:54:21,352 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:54:21,352 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:54:21,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:21,398 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-11-10 04:54:21,527 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:54:21,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-10 04:54:21,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 6] total 15 [2018-11-10 04:54:21,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-10 04:54:21,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-10 04:54:21,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-11-10 04:54:21,554 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 15 states. [2018-11-10 04:54:22,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:22,078 INFO L93 Difference]: Finished difference Result 102 states and 126 transitions. [2018-11-10 04:54:22,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-10 04:54:22,078 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 46 [2018-11-10 04:54:22,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:22,079 INFO L225 Difference]: With dead ends: 102 [2018-11-10 04:54:22,079 INFO L226 Difference]: Without dead ends: 71 [2018-11-10 04:54:22,080 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 120 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2018-11-10 04:54:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-10 04:54:22,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 56. [2018-11-10 04:54:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-10 04:54:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2018-11-10 04:54:22,088 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 46 [2018-11-10 04:54:22,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:22,089 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2018-11-10 04:54:22,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-10 04:54:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2018-11-10 04:54:22,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-10 04:54:22,090 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:22,090 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2018-11-10 04:54:22,090 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:22,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:22,091 INFO L82 PathProgramCache]: Analyzing trace with hash -973670379, now seen corresponding path program 1 times [2018-11-10 04:54:22,091 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:54:22,091 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:54:22,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:22,487 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-11-10 04:54:22,544 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:54:22,613 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-11-10 04:54:22,616 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:54:22,616 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/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 [2018-11-10 04:54:22,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:22,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:22,903 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-10 04:54:22,903 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 04:54:22,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-10 04:54:22,924 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 5] total 12 [2018-11-10 04:54:22,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-10 04:54:22,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-10 04:54:22,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-11-10 04:54:22,925 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand 12 states. [2018-11-10 04:54:23,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:23,332 INFO L93 Difference]: Finished difference Result 127 states and 177 transitions. [2018-11-10 04:54:23,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-10 04:54:23,333 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 53 [2018-11-10 04:54:23,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:23,333 INFO L225 Difference]: With dead ends: 127 [2018-11-10 04:54:23,333 INFO L226 Difference]: Without dead ends: 66 [2018-11-10 04:54:23,334 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 146 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2018-11-10 04:54:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-10 04:54:23,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2018-11-10 04:54:23,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 04:54:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2018-11-10 04:54:23,342 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 53 [2018-11-10 04:54:23,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:23,342 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2018-11-10 04:54:23,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-10 04:54:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2018-11-10 04:54:23,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-11-10 04:54:23,344 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:23,344 INFO L375 BasicCegarLoop]: trace histogram [9, 6, 6, 4, 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] [2018-11-10 04:54:23,344 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:23,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:23,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1315666265, now seen corresponding path program 1 times [2018-11-10 04:54:23,345 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:54:23,345 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:54:23,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:24,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:24,861 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 54 proven. 23 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-11-10 04:54:24,861 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:54:25,155 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-11-10 04:54:25,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:54:25,162 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:54:25,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:54:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:54:25,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 43 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-10 04:54:25,896 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:54:26,934 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 5 proven. 61 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-10 04:54:26,961 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 04:54:26,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 5, 6] total 27 [2018-11-10 04:54:26,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-11-10 04:54:26,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-11-10 04:54:26,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2018-11-10 04:54:26,963 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand 27 states. [2018-11-10 04:54:28,117 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-11-10 04:54:28,503 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2018-11-10 04:54:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:28,848 INFO L93 Difference]: Finished difference Result 162 states and 223 transitions. [2018-11-10 04:54:28,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-10 04:54:28,849 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 76 [2018-11-10 04:54:28,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:28,850 INFO L225 Difference]: With dead ends: 162 [2018-11-10 04:54:28,850 INFO L226 Difference]: Without dead ends: 121 [2018-11-10 04:54:28,851 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 273 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=257, Invalid=865, Unknown=0, NotChecked=0, Total=1122 [2018-11-10 04:54:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-11-10 04:54:28,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 111. [2018-11-10 04:54:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-10 04:54:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 136 transitions. [2018-11-10 04:54:28,867 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 136 transitions. Word has length 76 [2018-11-10 04:54:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:28,867 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 136 transitions. [2018-11-10 04:54:28,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-11-10 04:54:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 136 transitions. [2018-11-10 04:54:28,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-10 04:54:28,869 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:28,870 INFO L375 BasicCegarLoop]: trace histogram [12, 9, 9, 6, 4, 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] [2018-11-10 04:54:28,870 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:28,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:28,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1231551854, now seen corresponding path program 2 times [2018-11-10 04:54:28,870 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:54:28,871 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:54:28,882 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 04:54:30,338 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 04:54:30,338 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 04:54:30,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 108 proven. 15 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-10 04:54:30,858 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:54:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2018-11-10 04:54:31,089 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:54:31,089 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:54:31,094 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 04:54:32,104 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 04:54:32,104 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 04:54:32,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:54:32,348 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 108 proven. 15 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-10 04:54:32,348 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:54:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 114 proven. 25 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-11-10 04:54:34,396 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 04:54:34,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10, 14] total 23 [2018-11-10 04:54:34,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-10 04:54:34,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-10 04:54:34,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2018-11-10 04:54:34,397 INFO L87 Difference]: Start difference. First operand 111 states and 136 transitions. Second operand 23 states. [2018-11-10 04:54:35,359 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-11-10 04:54:35,952 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 12 [2018-11-10 04:54:36,352 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 13 [2018-11-10 04:54:36,649 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-11-10 04:54:37,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:54:37,599 INFO L93 Difference]: Finished difference Result 202 states and 255 transitions. [2018-11-10 04:54:37,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-10 04:54:37,603 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 88 [2018-11-10 04:54:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:54:37,604 INFO L225 Difference]: With dead ends: 202 [2018-11-10 04:54:37,604 INFO L226 Difference]: Without dead ends: 134 [2018-11-10 04:54:37,605 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 321 SyntacticMatches, 8 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2018-11-10 04:54:37,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-10 04:54:37,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 129. [2018-11-10 04:54:37,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-10 04:54:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 154 transitions. [2018-11-10 04:54:37,621 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 154 transitions. Word has length 88 [2018-11-10 04:54:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:54:37,621 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 154 transitions. [2018-11-10 04:54:37,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-10 04:54:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 154 transitions. [2018-11-10 04:54:37,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-11-10 04:54:37,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:54:37,623 INFO L375 BasicCegarLoop]: trace histogram [12, 9, 9, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:54:37,623 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:54:37,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:54:37,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1649796690, now seen corresponding path program 1 times [2018-11-10 04:54:37,623 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 04:54:37,623 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 04:54:37,651 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 04:54:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:54:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:54:41,489 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 04:54:41,504 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,505 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,507 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,507 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,508 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,508 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,511 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,511 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,512 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,512 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,513 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,513 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,515 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,516 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,517 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,518 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,519 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,519 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,520 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,520 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,520 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,520 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,521 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,521 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,521 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,521 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:54:41 BoogieIcfgContainer [2018-11-10 04:54:41,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:54:41,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:54:41,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:54:41,552 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:54:41,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:54:20" (3/4) ... [2018-11-10 04:54:41,554 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 04:54:41,556 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,556 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,557 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,557 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,557 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,557 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,558 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,558 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,559 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,559 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,559 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,560 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,560 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,560 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,560 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,560 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,560 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,561 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,561 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,561 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,561 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,561 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,561 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,561 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,566 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,567 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,567 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,567 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,567 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,567 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,567 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,567 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,568 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,568 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,569 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,569 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,569 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,569 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,569 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,569 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 04:54:41,620 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b50e28ae-438f-47dd-b52a-8a43b7ebdc1c/bin-2019/utaipan/witness.graphml [2018-11-10 04:54:41,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:54:41,621 INFO L168 Benchmark]: Toolchain (without parser) took 22065.92 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 290.5 MB). Free memory was 949.2 MB in the beginning and 1.2 GB in the end (delta: -259.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:41,621 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:54:41,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 931.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:41,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.23 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:54:41,622 INFO L168 Benchmark]: Boogie Preprocessor took 17.46 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:54:41,622 INFO L168 Benchmark]: RCFGBuilder took 688.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:41,623 INFO L168 Benchmark]: TraceAbstraction took 21073.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 141.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -98.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:41,623 INFO L168 Benchmark]: Witness Printer took 68.43 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. [2018-11-10 04:54:41,625 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.86 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 931.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.23 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.46 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 688.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21073.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 141.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -98.7 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. * Witness Printer took 68.43 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 53]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L4] int N; VAL [\old(N)=0, N=0] [L32] N = __VERIFIER_nondet_int() [L33] COND TRUE N > 1 [L34] CALL int x[N]; [L34] RET int x[N]; [L35] CALL init_nondet(x) VAL [\old(N)=0, N=3] [L6] int i; [L7] i = 0 VAL [\old(N)=0, N=3] [L7] COND TRUE i < N [L8] CALL x[i] = __VERIFIER_nondet_int() [L8] RET x[i] = __VERIFIER_nondet_int() [L7] i++ VAL [\old(N)=0, N=3] [L7] COND TRUE i < N [L8] CALL x[i] = __VERIFIER_nondet_int() [L8] RET x[i] = __VERIFIER_nondet_int() [L7] i++ VAL [\old(N)=0, N=3] [L7] COND TRUE i < N [L8] CALL x[i] = __VERIFIER_nondet_int() [L8] RET x[i] = __VERIFIER_nondet_int() [L7] i++ VAL [\old(N)=0, N=3] [L7] COND FALSE, RET !(i < N) VAL [\old(N)=0, N=3] [L35] init_nondet(x) VAL [\old(N)=0, N=3] [L36] int temp; [L37] int ret; [L38] int ret2; [L39] int ret5; VAL [\old(N)=0, N=3] [L41] CALL, EXPR rangesum(x) VAL [\old(N)=0, N=3] [L14] int i; [L15] long long ret; [L16] ret = 0 [L17] int cnt = 0; [L18] i = 0 VAL [\old(N)=0, N=3] [L18] COND TRUE i < N VAL [\old(N)=0, N=3] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND TRUE i < N VAL [\old(N)=0, N=3] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND TRUE i < N VAL [\old(N)=0, N=3] [L19] COND TRUE i > N/2 [L20] CALL, EXPR x[i] [L20] RET, EXPR x[i] [L20] ret = ret + x[i] [L21] cnt = cnt + 1 VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND FALSE !(i < N) VAL [\old(N)=0, N=3] [L24] COND TRUE cnt !=0 [L25] RET return ret / cnt; VAL [\old(N)=0, N=3] [L41] EXPR rangesum(x) VAL [\old(N)=0, N=3] [L41] ret = rangesum(x) [L43] CALL, EXPR x[0] [L43] RET, EXPR x[0] [L43] temp=x[0] [L43] CALL, EXPR x[1] [L43] RET, EXPR x[1] [L43] CALL x[0] = x[1] [L43] RET x[0] = x[1] [L43] CALL x[1] = temp [L43] RET x[1] = temp [L44] CALL, EXPR rangesum(x) VAL [\old(N)=0, N=3] [L14] int i; [L15] long long ret; [L16] ret = 0 [L17] int cnt = 0; [L18] i = 0 VAL [\old(N)=0, N=3] [L18] COND TRUE i < N VAL [\old(N)=0, N=3] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND TRUE i < N VAL [\old(N)=0, N=3] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND TRUE i < N VAL [\old(N)=0, N=3] [L19] COND TRUE i > N/2 [L20] CALL, EXPR x[i] [L20] RET, EXPR x[i] [L20] ret = ret + x[i] [L21] cnt = cnt + 1 VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND FALSE !(i < N) VAL [\old(N)=0, N=3] [L24] COND TRUE cnt !=0 [L25] RET return ret / cnt; VAL [\old(N)=0, N=3] [L44] EXPR rangesum(x) VAL [\old(N)=0, N=3] [L44] ret2 = rangesum(x) [L45] CALL, EXPR x[0] [L45] RET, EXPR x[0] [L45] temp=x[0] [L46] int i =0 ; VAL [\old(N)=0, N=3] [L46] COND TRUE i N/2) VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND TRUE i < N VAL [\old(N)=0, N=3] [L19] COND FALSE !(i > N/2) VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND TRUE i < N VAL [\old(N)=0, N=3] [L19] COND TRUE i > N/2 [L20] CALL, EXPR x[i] [L20] RET, EXPR x[i] [L20] ret = ret + x[i] [L21] cnt = cnt + 1 VAL [\old(N)=0, N=3] [L18] i++ VAL [\old(N)=0, N=3] [L18] COND FALSE !(i < N) VAL [\old(N)=0, N=3] [L24] COND TRUE cnt !=0 [L25] RET return ret / cnt; VAL [\old(N)=0, N=3] [L50] EXPR rangesum(x) VAL [\old(N)=0, N=3] [L50] ret5 = rangesum(x) [L52] COND TRUE ret != ret2 || ret !=ret5 VAL [\old(N)=0, N=3] [L53] __VERIFIER_error() VAL [\old(N)=0, N=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 21.0s OverallTime, 8 OverallIterations, 12 TraceHistogramMax, 6.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 282 SDtfs, 728 SDslu, 881 SDs, 0 SdLazy, 1246 SolverSat, 238 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1093 GetRequests, 977 SyntacticMatches, 19 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 34 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 744 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1060 ConstructedInterpolants, 0 QuantifiedInterpolants, 259316 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1744 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 1383/1644 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...