./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/Addition01-2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91d2600fad1210650d8ad3da481cdcc11b280095 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:11,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:11,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:11,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:11,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:11,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:11,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:11,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:11,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:11,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:11,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:11,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:11,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:11,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:11,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:11,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:11,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:11,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:11,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:11,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:11,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:11,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:11,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:11,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:11,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:11,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:11,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:11,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:11,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:11,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:11,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:11,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:11,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:11,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:11,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:11,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:11,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:11,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:11,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:11,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:11,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:11,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2019-10-22 11:27:11,129 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:11,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:11,130 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:11,130 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:11,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:11,130 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:11,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:11,131 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:11,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:11,131 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:11,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:11,131 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:11,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:11,132 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:11,133 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:27:11,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:11,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:11,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:11,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:11,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:11,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:11,134 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 11:27:11,134 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:11,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:11,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:11,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:11,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:11,135 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:11,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:11,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:11,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:11,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:11,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:11,136 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:11,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:11,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:11,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:11,137 INFO L138 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_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/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 ! overflow) ) 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 -> 91d2600fad1210650d8ad3da481cdcc11b280095 [2019-10-22 11:27:11,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:11,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:11,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:11,191 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:11,193 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:11,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/../../sv-benchmarks/c/recursive/Addition01-2.c [2019-10-22 11:27:11,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/data/6417ef7b8/99eff95e38e54d04b3e6b9b9f77c6ffa/FLAGab39b55f4 [2019-10-22 11:27:11,619 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:11,620 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/sv-benchmarks/c/recursive/Addition01-2.c [2019-10-22 11:27:11,625 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/data/6417ef7b8/99eff95e38e54d04b3e6b9b9f77c6ffa/FLAGab39b55f4 [2019-10-22 11:27:11,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/utaipan/data/6417ef7b8/99eff95e38e54d04b3e6b9b9f77c6ffa [2019-10-22 11:27:11,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:11,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:11,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:11,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:11,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:11,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f349855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:11, skipping insertion in model container [2019-10-22 11:27:11,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:11" (1/1) ... [2019-10-22 11:27:11,657 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:11,675 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:11,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:11,878 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:11,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:12,003 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:12,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12 WrapperNode [2019-10-22 11:27:12,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:12,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:12,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:12,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:12,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:12,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:12,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:12,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:12,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... [2019-10-22 11:27:12,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:12,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:12,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:12,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:12,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/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 [2019-10-22 11:27:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:12,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2019-10-22 11:27:12,138 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2019-10-22 11:27:12,380 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:12,380 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:27:12,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:12 BoogieIcfgContainer [2019-10-22 11:27:12,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:12,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:12,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:12,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:12,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:11" (1/3) ... [2019-10-22 11:27:12,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8e56f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:12, skipping insertion in model container [2019-10-22 11:27:12,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:12" (2/3) ... [2019-10-22 11:27:12,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8e56f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:12, skipping insertion in model container [2019-10-22 11:27:12,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:12" (3/3) ... [2019-10-22 11:27:12,389 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2019-10-22 11:27:12,398 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:12,405 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-10-22 11:27:12,416 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-10-22 11:27:12,438 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:12,438 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:12,439 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:12,439 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:12,439 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:12,439 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:12,439 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:12,439 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-10-22 11:27:12,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 11:27:12,469 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:12,469 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:12,472 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:12,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1338455646, now seen corresponding path program 1 times [2019-10-22 11:27:12,487 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:12,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432053886] [2019-10-22 11:27:12,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:12,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:12,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:12,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:12,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432053886] [2019-10-22 11:27:12,635 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:12,635 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:12,636 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114411899] [2019-10-22 11:27:12,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:12,642 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:12,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:12,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:12,654 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 5 states. [2019-10-22 11:27:12,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:12,801 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2019-10-22 11:27:12,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:12,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-10-22 11:27:12,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:12,813 INFO L225 Difference]: With dead ends: 72 [2019-10-22 11:27:12,813 INFO L226 Difference]: Without dead ends: 59 [2019-10-22 11:27:12,816 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:12,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-10-22 11:27:12,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2019-10-22 11:27:12,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-10-22 11:27:12,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2019-10-22 11:27:12,863 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 8 [2019-10-22 11:27:12,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:12,864 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2019-10-22 11:27:12,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:12,864 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2019-10-22 11:27:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:27:12,865 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:12,865 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:12,866 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:12,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:12,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1457547865, now seen corresponding path program 1 times [2019-10-22 11:27:12,867 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:12,867 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164113031] [2019-10-22 11:27:12,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:12,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:12,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:12,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:12,901 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164113031] [2019-10-22 11:27:12,901 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:12,901 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:12,901 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680835964] [2019-10-22 11:27:12,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:12,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:12,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:12,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:12,904 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand 5 states. [2019-10-22 11:27:12,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:12,983 INFO L93 Difference]: Finished difference Result 97 states and 125 transitions. [2019-10-22 11:27:12,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:12,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-10-22 11:27:12,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:12,985 INFO L225 Difference]: With dead ends: 97 [2019-10-22 11:27:12,985 INFO L226 Difference]: Without dead ends: 95 [2019-10-22 11:27:12,986 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:12,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-10-22 11:27:12,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 89. [2019-10-22 11:27:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-10-22 11:27:13,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2019-10-22 11:27:13,000 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 9 [2019-10-22 11:27:13,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:13,000 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2019-10-22 11:27:13,001 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2019-10-22 11:27:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:27:13,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:13,001 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:13,002 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:13,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:13,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2060656512, now seen corresponding path program 1 times [2019-10-22 11:27:13,002 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:13,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267808890] [2019-10-22 11:27:13,002 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:13,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267808890] [2019-10-22 11:27:13,048 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:13,049 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:13,049 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139093544] [2019-10-22 11:27:13,049 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:13,049 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:13,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:13,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:13,050 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand 5 states. [2019-10-22 11:27:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:13,204 INFO L93 Difference]: Finished difference Result 98 states and 129 transitions. [2019-10-22 11:27:13,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:13,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-22 11:27:13,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:13,212 INFO L225 Difference]: With dead ends: 98 [2019-10-22 11:27:13,214 INFO L226 Difference]: Without dead ends: 96 [2019-10-22 11:27:13,214 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:13,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-10-22 11:27:13,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2019-10-22 11:27:13,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-10-22 11:27:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 115 transitions. [2019-10-22 11:27:13,226 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 115 transitions. Word has length 10 [2019-10-22 11:27:13,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:13,227 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 115 transitions. [2019-10-22 11:27:13,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2019-10-22 11:27:13,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:27:13,228 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:13,228 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:13,229 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:13,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:13,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2060531711, now seen corresponding path program 1 times [2019-10-22 11:27:13,229 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:13,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974048477] [2019-10-22 11:27:13,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,230 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,275 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974048477] [2019-10-22 11:27:13,275 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:13,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:27:13,275 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453079444] [2019-10-22 11:27:13,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:13,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:13,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:13,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:13,276 INFO L87 Difference]: Start difference. First operand 88 states and 115 transitions. Second operand 4 states. [2019-10-22 11:27:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:13,299 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2019-10-22 11:27:13,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:13,303 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-10-22 11:27:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:13,304 INFO L225 Difference]: With dead ends: 88 [2019-10-22 11:27:13,304 INFO L226 Difference]: Without dead ends: 87 [2019-10-22 11:27:13,304 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:13,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-10-22 11:27:13,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-10-22 11:27:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-10-22 11:27:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2019-10-22 11:27:13,319 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 114 transitions. Word has length 10 [2019-10-22 11:27:13,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:13,320 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 114 transitions. [2019-10-22 11:27:13,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:13,320 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2019-10-22 11:27:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:27:13,320 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:13,320 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:13,321 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:13,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:13,321 INFO L82 PathProgramCache]: Analyzing trace with hash -544157495, now seen corresponding path program 1 times [2019-10-22 11:27:13,321 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:13,321 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843696225] [2019-10-22 11:27:13,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:13,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843696225] [2019-10-22 11:27:13,350 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:13,350 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:27:13,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094147899] [2019-10-22 11:27:13,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:27:13,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:13,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:27:13,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:13,352 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. Second operand 3 states. [2019-10-22 11:27:13,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:13,371 INFO L93 Difference]: Finished difference Result 95 states and 127 transitions. [2019-10-22 11:27:13,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:27:13,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-22 11:27:13,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:13,373 INFO L225 Difference]: With dead ends: 95 [2019-10-22 11:27:13,373 INFO L226 Difference]: Without dead ends: 94 [2019-10-22 11:27:13,373 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:27:13,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-10-22 11:27:13,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 86. [2019-10-22 11:27:13,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-10-22 11:27:13,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2019-10-22 11:27:13,384 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 11 [2019-10-22 11:27:13,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:13,384 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2019-10-22 11:27:13,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:27:13,384 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2019-10-22 11:27:13,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:27:13,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:13,385 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:13,385 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:13,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:13,385 INFO L82 PathProgramCache]: Analyzing trace with hash -548026352, now seen corresponding path program 1 times [2019-10-22 11:27:13,385 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:13,386 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642105634] [2019-10-22 11:27:13,386 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,386 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:13,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642105634] [2019-10-22 11:27:13,408 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:13,408 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:27:13,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719440392] [2019-10-22 11:27:13,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:13,408 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:13,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:13,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:13,409 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand 4 states. [2019-10-22 11:27:13,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:13,426 INFO L93 Difference]: Finished difference Result 86 states and 110 transitions. [2019-10-22 11:27:13,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:27:13,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-22 11:27:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:13,427 INFO L225 Difference]: With dead ends: 86 [2019-10-22 11:27:13,427 INFO L226 Difference]: Without dead ends: 66 [2019-10-22 11:27:13,428 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:13,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-10-22 11:27:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 52. [2019-10-22 11:27:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-10-22 11:27:13,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2019-10-22 11:27:13,434 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 11 [2019-10-22 11:27:13,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:13,434 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2019-10-22 11:27:13,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2019-10-22 11:27:13,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 11:27:13,435 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:13,436 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:13,436 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:13,436 INFO L82 PathProgramCache]: Analyzing trace with hash 637359235, now seen corresponding path program 1 times [2019-10-22 11:27:13,436 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:13,437 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139011286] [2019-10-22 11:27:13,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,437 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,463 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139011286] [2019-10-22 11:27:13,464 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:13,464 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 11:27:13,464 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50387991] [2019-10-22 11:27:13,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:27:13,464 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:13,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:27:13,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:13,465 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 5 states. [2019-10-22 11:27:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:13,507 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2019-10-22 11:27:13,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 11:27:13,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-22 11:27:13,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:13,508 INFO L225 Difference]: With dead ends: 76 [2019-10-22 11:27:13,508 INFO L226 Difference]: Without dead ends: 43 [2019-10-22 11:27:13,509 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:13,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-10-22 11:27:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2019-10-22 11:27:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 11:27:13,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2019-10-22 11:27:13,514 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 12 [2019-10-22 11:27:13,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:13,515 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2019-10-22 11:27:13,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:27:13,515 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2019-10-22 11:27:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 11:27:13,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:13,516 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:27:13,516 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:27:13,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:13,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1497942885, now seen corresponding path program 1 times [2019-10-22 11:27:13,517 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:13,517 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13455931] [2019-10-22 11:27:13,517 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,517 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:13,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:13,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13455931] [2019-10-22 11:27:13,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142370460] [2019-10-22 11:27:13,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d971e81d-4dbe-4734-91b4-a50e306a83bc/bin/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 [2019-10-22 11:27:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:13,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:27:13,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,633 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:13,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:13,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1988734648] [2019-10-22 11:27:13,703 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 17 [2019-10-22 11:27:13,746 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:27:13,746 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:27:14,017 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:14,018 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) 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.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.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) 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:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) 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:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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) [2019-10-22 11:27:14,023 INFO L168 Benchmark]: Toolchain (without parser) took 2382.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 940.4 MB in the beginning and 976.8 MB in the end (delta: -36.3 MB). Peak memory consumption was 102.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:14,026 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:14,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:14,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:14,027 INFO L168 Benchmark]: Boogie Preprocessor took 21.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:14,028 INFO L168 Benchmark]: RCFGBuilder took 318.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:14,028 INFO L168 Benchmark]: TraceAbstraction took 1638.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.8 MB in the end (delta: 131.1 MB). Peak memory consumption was 131.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:14,031 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1638.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.8 MB in the end (delta: 131.1 MB). Peak memory consumption was 131.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...