./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/bitvector/byte_add_2_false-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/byte_add_2_false-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/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 758587bcbf021ce28de3aa106c09f74804dbda1d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/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: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Non-integral value with integer sort --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:10:59,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:10:59,552 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:10:59,559 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:10:59,559 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:10:59,559 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:10:59,560 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:10:59,561 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:10:59,562 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:10:59,563 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:10:59,564 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:10:59,564 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:10:59,564 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:10:59,565 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:10:59,566 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:10:59,566 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:10:59,567 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:10:59,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:10:59,569 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:10:59,570 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:10:59,571 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:10:59,572 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:10:59,573 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:10:59,574 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:10:59,574 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:10:59,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:10:59,575 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:10:59,576 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:10:59,576 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:10:59,577 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:10:59,577 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:10:59,578 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:10:59,578 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:10:59,578 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:10:59,578 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:10:59,579 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:10:59,579 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2018-11-18 11:10:59,587 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:10:59,588 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:10:59,588 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:10:59,588 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:10:59,588 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:10:59,589 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:10:59,589 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:10:59,589 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:10:59,589 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:10:59,589 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:10:59,589 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:10:59,589 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:10:59,590 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:10:59,590 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:10:59,590 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:10:59,590 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:10:59,590 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:10:59,591 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:10:59,591 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:10:59,591 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:10:59,591 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:10:59,591 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:10:59,591 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 11:10:59,591 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:10:59,591 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:10:59,592 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:10:59,592 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:10:59,592 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:10:59,592 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:10:59,592 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:10:59,592 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:10:59,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:10:59,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:10:59,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:10:59,593 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:10:59,593 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:10:59,593 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:10:59,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:10:59,593 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:10:59,593 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_08fbfc38-a6f1-492e-82d4-e4acae805cf2/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 ! 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 -> 758587bcbf021ce28de3aa106c09f74804dbda1d [2018-11-18 11:10:59,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:10:59,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:10:59,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:10:59,630 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:10:59,630 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:10:59,631 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/../../sv-benchmarks/c/bitvector/byte_add_2_false-no-overflow.i [2018-11-18 11:10:59,670 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/data/ff164abfe/577f7040847d4cc6a0e2d5bed71ded0a/FLAG1499daf4a [2018-11-18 11:11:00,067 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:11:00,067 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/sv-benchmarks/c/bitvector/byte_add_2_false-no-overflow.i [2018-11-18 11:11:00,072 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/data/ff164abfe/577f7040847d4cc6a0e2d5bed71ded0a/FLAG1499daf4a [2018-11-18 11:11:00,081 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/bin-2019/utaipan/data/ff164abfe/577f7040847d4cc6a0e2d5bed71ded0a [2018-11-18 11:11:00,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:11:00,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:11:00,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:11:00,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:11:00,087 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:11:00,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88e9939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00, skipping insertion in model container [2018-11-18 11:11:00,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:11:00,115 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:11:00,235 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:11:00,237 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:11:00,257 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:11:00,265 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:11:00,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00 WrapperNode [2018-11-18 11:11:00,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:11:00,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:11:00,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:11:00,266 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:11:00,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:11:00,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:11:00,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:11:00,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:11:00,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... [2018-11-18 11:11:00,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:11:00,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:11:00,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:11:00,340 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:11:00,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_08fbfc38-a6f1-492e-82d4-e4acae805cf2/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 [2018-11-18 11:11:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure mp_add [2018-11-18 11:11:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mp_add [2018-11-18 11:11:00,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:11:00,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:11:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:11:00,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:11:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:11:00,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:11:00,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 11:11:00,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 11:11:00,730 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:11:00,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:11:00 BoogieIcfgContainer [2018-11-18 11:11:00,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:11:00,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:11:00,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:11:00,734 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:11:00,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:11:00" (1/3) ... [2018-11-18 11:11:00,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4951fcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:11:00, skipping insertion in model container [2018-11-18 11:11:00,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:11:00" (2/3) ... [2018-11-18 11:11:00,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4951fcfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:11:00, skipping insertion in model container [2018-11-18 11:11:00,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:11:00" (3/3) ... [2018-11-18 11:11:00,737 INFO L112 eAbstractionObserver]: Analyzing ICFG byte_add_2_false-no-overflow.i [2018-11-18 11:11:00,742 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:11:00,748 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2018-11-18 11:11:00,758 INFO L257 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2018-11-18 11:11:00,780 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:11:00,780 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:11:00,780 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:11:00,780 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:11:00,781 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:11:00,781 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:11:00,781 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:11:00,781 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:11:00,797 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2018-11-18 11:11:00,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 11:11:00,801 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:00,801 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:11:00,803 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:00,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:00,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1564523809, now seen corresponding path program 1 times [2018-11-18 11:11:00,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:00,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:00,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:00,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:00,844 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:11:00,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:00,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-18 11:11:00,906 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:00,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:11:00,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:11:00,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:11:00,923 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2018-11-18 11:11:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:00,945 INFO L93 Difference]: Finished difference Result 157 states and 200 transitions. [2018-11-18 11:11:00,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:11:00,946 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-11-18 11:11:00,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:00,954 INFO L225 Difference]: With dead ends: 157 [2018-11-18 11:11:00,954 INFO L226 Difference]: Without dead ends: 76 [2018-11-18 11:11:00,957 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:11:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-18 11:11:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-11-18 11:11:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 11:11:00,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 102 transitions. [2018-11-18 11:11:00,987 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 102 transitions. Word has length 9 [2018-11-18 11:11:00,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:00,987 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 102 transitions. [2018-11-18 11:11:00,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:11:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 102 transitions. [2018-11-18 11:11:00,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:11:00,989 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:00,989 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:11:00,990 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:00,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:00,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1377991052, now seen corresponding path program 1 times [2018-11-18 11:11:00,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:00,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:00,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:00,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:00,992 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:11:01,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:01,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:11:01,067 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:01,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:11:01,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:11:01,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:11:01,069 INFO L87 Difference]: Start difference. First operand 76 states and 102 transitions. Second operand 3 states. [2018-11-18 11:11:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:01,183 INFO L93 Difference]: Finished difference Result 156 states and 223 transitions. [2018-11-18 11:11:01,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:11:01,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-18 11:11:01,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:01,184 INFO L225 Difference]: With dead ends: 156 [2018-11-18 11:11:01,184 INFO L226 Difference]: Without dead ends: 107 [2018-11-18 11:11:01,185 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:11:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-11-18 11:11:01,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2018-11-18 11:11:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-11-18 11:11:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 133 transitions. [2018-11-18 11:11:01,195 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 133 transitions. Word has length 20 [2018-11-18 11:11:01,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:01,196 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 133 transitions. [2018-11-18 11:11:01,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:11:01,196 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 133 transitions. [2018-11-18 11:11:01,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 11:11:01,197 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:01,197 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-18 11:11:01,198 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:01,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:01,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1088504138, now seen corresponding path program 1 times [2018-11-18 11:11:01,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:01,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:01,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:01,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:01,199 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:01,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:11:01,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:01,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:11:01,263 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:01,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:11:01,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:11:01,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:11:01,264 INFO L87 Difference]: Start difference. First operand 103 states and 133 transitions. Second operand 4 states. [2018-11-18 11:11:01,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:01,443 INFO L93 Difference]: Finished difference Result 227 states and 330 transitions. [2018-11-18 11:11:01,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:11:01,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-11-18 11:11:01,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:01,445 INFO L225 Difference]: With dead ends: 227 [2018-11-18 11:11:01,445 INFO L226 Difference]: Without dead ends: 178 [2018-11-18 11:11:01,446 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:11:01,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-11-18 11:11:01,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 130. [2018-11-18 11:11:01,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-11-18 11:11:01,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 172 transitions. [2018-11-18 11:11:01,454 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 172 transitions. Word has length 28 [2018-11-18 11:11:01,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:01,455 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 172 transitions. [2018-11-18 11:11:01,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:11:01,455 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 172 transitions. [2018-11-18 11:11:01,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 11:11:01,456 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:01,456 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:11:01,457 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:01,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:01,457 INFO L82 PathProgramCache]: Analyzing trace with hash 48430116, now seen corresponding path program 1 times [2018-11-18 11:11:01,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:01,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:01,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:01,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:01,458 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 11:11:01,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:01,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:11:01,523 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:01,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:11:01,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:11:01,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:11:01,524 INFO L87 Difference]: Start difference. First operand 130 states and 172 transitions. Second operand 4 states. [2018-11-18 11:11:01,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:01,686 INFO L93 Difference]: Finished difference Result 331 states and 464 transitions. [2018-11-18 11:11:01,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:11:01,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-11-18 11:11:01,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:01,687 INFO L225 Difference]: With dead ends: 331 [2018-11-18 11:11:01,688 INFO L226 Difference]: Without dead ends: 235 [2018-11-18 11:11:01,688 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:11:01,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-11-18 11:11:01,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 171. [2018-11-18 11:11:01,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-11-18 11:11:01,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 235 transitions. [2018-11-18 11:11:01,700 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 235 transitions. Word has length 36 [2018-11-18 11:11:01,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:01,703 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 235 transitions. [2018-11-18 11:11:01,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:11:01,703 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 235 transitions. [2018-11-18 11:11:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 11:11:01,704 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:01,704 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] [2018-11-18 11:11:01,705 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:01,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:01,706 INFO L82 PathProgramCache]: Analyzing trace with hash 740020430, now seen corresponding path program 1 times [2018-11-18 11:11:01,706 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:01,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:01,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:01,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:01,707 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:01,793 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-18 11:11:01,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:01,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:11:01,793 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:01,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:11:01,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:11:01,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:11:01,794 INFO L87 Difference]: Start difference. First operand 171 states and 235 transitions. Second operand 5 states. [2018-11-18 11:11:01,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:01,975 INFO L93 Difference]: Finished difference Result 482 states and 665 transitions. [2018-11-18 11:11:01,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:11:01,975 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-11-18 11:11:01,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:01,977 INFO L225 Difference]: With dead ends: 482 [2018-11-18 11:11:01,977 INFO L226 Difference]: Without dead ends: 342 [2018-11-18 11:11:01,978 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:11:01,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2018-11-18 11:11:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 185. [2018-11-18 11:11:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-11-18 11:11:01,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 252 transitions. [2018-11-18 11:11:01,990 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 252 transitions. Word has length 44 [2018-11-18 11:11:01,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:01,990 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 252 transitions. [2018-11-18 11:11:01,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:11:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 252 transitions. [2018-11-18 11:11:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 11:11:01,992 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:01,992 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] [2018-11-18 11:11:01,993 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:01,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:01,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1510638398, now seen corresponding path program 1 times [2018-11-18 11:11:01,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:01,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:01,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:01,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:01,995 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:02,052 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-11-18 11:11:02,053 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:02,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:11:02,053 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:02,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:11:02,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:11:02,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:11:02,054 INFO L87 Difference]: Start difference. First operand 185 states and 252 transitions. Second operand 5 states. [2018-11-18 11:11:02,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:02,237 INFO L93 Difference]: Finished difference Result 490 states and 673 transitions. [2018-11-18 11:11:02,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:11:02,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-18 11:11:02,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:02,238 INFO L225 Difference]: With dead ends: 490 [2018-11-18 11:11:02,239 INFO L226 Difference]: Without dead ends: 350 [2018-11-18 11:11:02,239 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:11:02,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2018-11-18 11:11:02,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 200. [2018-11-18 11:11:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-11-18 11:11:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 268 transitions. [2018-11-18 11:11:02,249 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 268 transitions. Word has length 47 [2018-11-18 11:11:02,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:02,249 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 268 transitions. [2018-11-18 11:11:02,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:11:02,250 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 268 transitions. [2018-11-18 11:11:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 11:11:02,251 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:02,251 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] [2018-11-18 11:11:02,252 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:02,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:02,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1002470733, now seen corresponding path program 1 times [2018-11-18 11:11:02,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:02,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:02,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:02,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:02,253 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 11:11:02,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:02,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:11:02,311 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:02,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:11:02,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:11:02,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:11:02,312 INFO L87 Difference]: Start difference. First operand 200 states and 268 transitions. Second operand 5 states. [2018-11-18 11:11:02,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:02,332 INFO L93 Difference]: Finished difference Result 337 states and 461 transitions. [2018-11-18 11:11:02,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 11:11:02,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2018-11-18 11:11:02,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:02,333 INFO L225 Difference]: With dead ends: 337 [2018-11-18 11:11:02,333 INFO L226 Difference]: Without dead ends: 172 [2018-11-18 11:11:02,334 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:11:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-11-18 11:11:02,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2018-11-18 11:11:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-11-18 11:11:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 232 transitions. [2018-11-18 11:11:02,340 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 232 transitions. Word has length 50 [2018-11-18 11:11:02,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:02,340 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 232 transitions. [2018-11-18 11:11:02,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:11:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 232 transitions. [2018-11-18 11:11:02,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 11:11:02,341 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:02,341 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:11:02,342 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:02,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:02,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1982405281, now seen corresponding path program 1 times [2018-11-18 11:11:02,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:02,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:02,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:02,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:02,343 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:02,383 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-18 11:11:02,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:02,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:11:02,383 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:02,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:11:02,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:11:02,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:11:02,384 INFO L87 Difference]: Start difference. First operand 172 states and 232 transitions. Second operand 3 states. [2018-11-18 11:11:02,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:02,393 INFO L93 Difference]: Finished difference Result 235 states and 318 transitions. [2018-11-18 11:11:02,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:11:02,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2018-11-18 11:11:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:02,397 INFO L225 Difference]: With dead ends: 235 [2018-11-18 11:11:02,397 INFO L226 Difference]: Without dead ends: 202 [2018-11-18 11:11:02,397 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:11:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-11-18 11:11:02,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2018-11-18 11:11:02,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-11-18 11:11:02,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 273 transitions. [2018-11-18 11:11:02,403 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 273 transitions. Word has length 56 [2018-11-18 11:11:02,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:02,403 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 273 transitions. [2018-11-18 11:11:02,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:11:02,403 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 273 transitions. [2018-11-18 11:11:02,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-18 11:11:02,404 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:02,404 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:11:02,405 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:02,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:02,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1707645667, now seen corresponding path program 1 times [2018-11-18 11:11:02,405 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:02,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:02,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:02,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:02,406 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 11:11:02,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:11:02,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:11:02,466 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:11:02,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:11:02,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:11:02,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:11:02,467 INFO L87 Difference]: Start difference. First operand 202 states and 273 transitions. Second operand 4 states. [2018-11-18 11:11:02,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:11:02,511 INFO L93 Difference]: Finished difference Result 397 states and 553 transitions. [2018-11-18 11:11:02,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:11:02,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-11-18 11:11:02,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:11:02,513 INFO L225 Difference]: With dead ends: 397 [2018-11-18 11:11:02,513 INFO L226 Difference]: Without dead ends: 223 [2018-11-18 11:11:02,513 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:11:02,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-11-18 11:11:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 165. [2018-11-18 11:11:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-11-18 11:11:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 222 transitions. [2018-11-18 11:11:02,520 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 222 transitions. Word has length 56 [2018-11-18 11:11:02,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:11:02,521 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 222 transitions. [2018-11-18 11:11:02,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:11:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 222 transitions. [2018-11-18 11:11:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-11-18 11:11:02,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:11:02,522 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:11:02,523 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 11:11:02,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:02,523 INFO L82 PathProgramCache]: Analyzing trace with hash -574320215, now seen corresponding path program 1 times [2018-11-18 11:11:02,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:11:02,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:02,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:11:02,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:11:02,526 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:11:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:11:02,601 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 11:11:02,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:11:02,601 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:11:02,602 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 75 with the following transitions: [2018-11-18 11:11:02,603 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [7], [26], [31], [60], [62], [66], [70], [72], [117], [121], [124], [126], [128], [130], [134], [136], [138], [140], [144], [146], [148], [150], [160], [167], [169], [173], [175], [179], [181], [185], [187], [193], [196], [198], [204], [208], [243], [245], [247], [249], [250], [255], [259], [275], [276], [277], [279] [2018-11-18 11:11:02,628 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:11:02,628 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:11:02,724 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 11:11:02,725 INFO L272 AbstractInterpreter]: Visited 18 different actions 18 times. Never merged. Never widened. Performed 61 root evaluator evaluations with a maximum evaluation depth of 4. Performed 61 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 22 variables. [2018-11-18 11:11:02,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:11:02,730 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 11:11:02,738 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Non-integral value with integer sort 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:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java: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: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Non-integral value with integer sort at de.uni_freiburg.informatik.ultimate.logic.Theory.constant(Theory.java:419) at de.uni_freiburg.informatik.ultimate.logic.Rational.toTerm(Rational.java:918) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.rational2Term(SmtUtils.java:1523) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.getTerm(ExplicitValueValue.java:262) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalState.getTerm(NonrelationalState.java:930) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainState.lambda$8(CompoundDomainState.java:224) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainState.getTerm(CompoundDomainState.java:224) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanAbstractState.getTerm(PoormanAbstractState.java:162) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$11(DisjunctiveAbstractState.java:235) at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) at java.util.Iterator.forEachRemaining(Iterator.java:116) at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.getTerm(DisjunctiveAbstractState.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.getNonUnifiedPredicateFromStates(CegarAbsIntRunner.java:589) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.generateAbsIntPredicates(CegarAbsIntRunner.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.createInterpolantGenerator(CegarAbsIntRunner.java:400) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.getInterpolantGenerator(CegarAbsIntRunner.java:384) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.getInterpolantGenerator(CegarAbsIntRunner.java:257) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-18 11:11:02,740 INFO L168 Benchmark]: Toolchain (without parser) took 2657.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 953.8 MB in the beginning and 1.0 GB in the end (delta: -75.4 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:11:02,742 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:11:02,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 940.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:11:02,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.12 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:11:02,744 INFO L168 Benchmark]: Boogie Preprocessor took 58.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:11:02,745 INFO L168 Benchmark]: RCFGBuilder took 391.15 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:11:02,745 INFO L168 Benchmark]: TraceAbstraction took 2008.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:11:02,748 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 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 940.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.12 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 391.15 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2008.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.4 MB). Peak memory consumption was 70.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Non-integral value with integer sort de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Non-integral value with integer sort: 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...