./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/byte_add_2_false-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/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_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/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_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/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 0.1.23-635dfa2 [2018-12-09 00:12:59,764 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:12:59,765 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:12:59,771 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:12:59,771 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:12:59,772 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:12:59,772 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:12:59,773 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:12:59,774 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:12:59,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:12:59,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:12:59,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:12:59,775 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:12:59,776 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:12:59,776 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:12:59,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:12:59,777 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:12:59,778 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:12:59,779 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:12:59,780 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:12:59,780 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:12:59,781 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:12:59,782 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:12:59,782 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:12:59,782 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:12:59,783 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:12:59,783 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:12:59,783 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:12:59,784 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:12:59,784 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:12:59,784 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:12:59,785 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:12:59,785 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:12:59,785 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:12:59,785 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:12:59,786 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:12:59,786 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2018-12-09 00:12:59,793 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:12:59,793 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:12:59,793 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:12:59,794 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:12:59,794 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:12:59,795 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:12:59,795 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:12:59,796 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:12:59,796 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:12:59,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:12:59,797 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:12:59,797 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_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/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 [2018-12-09 00:12:59,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:12:59,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:12:59,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:12:59,825 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:12:59,826 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:12:59,826 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/../../sv-benchmarks/c/bitvector/byte_add_2_false-no-overflow.i [2018-12-09 00:12:59,862 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/data/29fa498b3/6b328a55a38443a7aa18be89bf37934d/FLAG95d2c92a9 [2018-12-09 00:13:00,152 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:13:00,152 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/sv-benchmarks/c/bitvector/byte_add_2_false-no-overflow.i [2018-12-09 00:13:00,156 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/data/29fa498b3/6b328a55a38443a7aa18be89bf37934d/FLAG95d2c92a9 [2018-12-09 00:13:00,164 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/data/29fa498b3/6b328a55a38443a7aa18be89bf37934d [2018-12-09 00:13:00,166 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:13:00,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:13:00,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:13:00,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:13:00,170 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:13:00,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00, skipping insertion in model container [2018-12-09 00:13:00,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:13:00,191 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:13:00,307 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:13:00,309 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:13:00,329 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:13:00,337 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:13:00,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00 WrapperNode [2018-12-09 00:13:00,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:13:00,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:13:00,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:13:00,338 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:13:00,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:13:00,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:13:00,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:13:00,351 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:13:00,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... [2018-12-09 00:13:00,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:13:00,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:13:00,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:13:00,403 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:13:00,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b96cd7e2-5193-4fdb-9f72-67bc484e8ff0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:13:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure mp_add [2018-12-09 00:13:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mp_add [2018-12-09 00:13:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:13:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:13:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:13:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:13:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:13:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:13:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 00:13:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 00:13:00,664 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:13:00,664 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 00:13:00,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:13:00 BoogieIcfgContainer [2018-12-09 00:13:00,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:13:00,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:13:00,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:13:00,667 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:13:00,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:13:00" (1/3) ... [2018-12-09 00:13:00,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d74f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:13:00, skipping insertion in model container [2018-12-09 00:13:00,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:00" (2/3) ... [2018-12-09 00:13:00,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d74f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:13:00, skipping insertion in model container [2018-12-09 00:13:00,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:13:00" (3/3) ... [2018-12-09 00:13:00,669 INFO L112 eAbstractionObserver]: Analyzing ICFG byte_add_2_false-no-overflow.i [2018-12-09 00:13:00,675 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:13:00,680 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2018-12-09 00:13:00,690 INFO L257 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2018-12-09 00:13:00,710 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:13:00,710 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:13:00,710 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:13:00,710 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:13:00,710 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:13:00,710 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:13:00,710 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:13:00,710 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:13:00,722 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2018-12-09 00:13:00,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 00:13:00,726 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:00,726 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:13:00,728 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:00,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:00,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1025559455, now seen corresponding path program 1 times [2018-12-09 00:13:00,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:00,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:00,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:00,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:00,761 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:13:00,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:00,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-09 00:13:00,806 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:00,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:13:00,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:13:00,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:13:00,818 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 2 states. [2018-12-09 00:13:00,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:00,834 INFO L93 Difference]: Finished difference Result 154 states and 197 transitions. [2018-12-09 00:13:00,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:13:00,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-12-09 00:13:00,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:00,840 INFO L225 Difference]: With dead ends: 154 [2018-12-09 00:13:00,840 INFO L226 Difference]: Without dead ends: 74 [2018-12-09 00:13:00,842 INFO L631 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 [2018-12-09 00:13:00,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-09 00:13:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-12-09 00:13:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-12-09 00:13:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions. [2018-12-09 00:13:00,865 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 9 [2018-12-09 00:13:00,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:00,866 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions. [2018-12-09 00:13:00,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:13:00,866 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions. [2018-12-09 00:13:00,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 00:13:00,866 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:00,867 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:13:00,867 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:00,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:00,867 INFO L82 PathProgramCache]: Analyzing trace with hash -133733111, now seen corresponding path program 1 times [2018-12-09 00:13:00,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:00,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:00,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:00,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:00,868 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:13:00,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:00,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:13:00,917 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:00,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:13:00,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:13:00,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:13:00,918 INFO L87 Difference]: Start difference. First operand 74 states and 100 transitions. Second operand 3 states. [2018-12-09 00:13:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:01,010 INFO L93 Difference]: Finished difference Result 150 states and 217 transitions. [2018-12-09 00:13:01,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:13:01,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-09 00:13:01,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:01,011 INFO L225 Difference]: With dead ends: 150 [2018-12-09 00:13:01,011 INFO L226 Difference]: Without dead ends: 103 [2018-12-09 00:13:01,012 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:13:01,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-12-09 00:13:01,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2018-12-09 00:13:01,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-12-09 00:13:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 129 transitions. [2018-12-09 00:13:01,018 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 129 transitions. Word has length 18 [2018-12-09 00:13:01,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:01,018 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 129 transitions. [2018-12-09 00:13:01,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:13:01,018 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 129 transitions. [2018-12-09 00:13:01,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 00:13:01,018 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:01,018 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:13:01,019 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:01,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:01,019 INFO L82 PathProgramCache]: Analyzing trace with hash -375227645, now seen corresponding path program 1 times [2018-12-09 00:13:01,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:01,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:01,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,020 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:01,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:13:01,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:01,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 00:13:01,083 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:01,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:13:01,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:13:01,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:13:01,083 INFO L87 Difference]: Start difference. First operand 99 states and 129 transitions. Second operand 4 states. [2018-12-09 00:13:01,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:01,221 INFO L93 Difference]: Finished difference Result 219 states and 322 transitions. [2018-12-09 00:13:01,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 00:13:01,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-09 00:13:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:01,223 INFO L225 Difference]: With dead ends: 219 [2018-12-09 00:13:01,223 INFO L226 Difference]: Without dead ends: 172 [2018-12-09 00:13:01,223 INFO L631 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 [2018-12-09 00:13:01,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2018-12-09 00:13:01,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 124. [2018-12-09 00:13:01,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-09 00:13:01,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 166 transitions. [2018-12-09 00:13:01,232 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 166 transitions. Word has length 25 [2018-12-09 00:13:01,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:01,232 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 166 transitions. [2018-12-09 00:13:01,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:13:01,232 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 166 transitions. [2018-12-09 00:13:01,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-09 00:13:01,233 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:01,233 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:13:01,234 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:01,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:01,234 INFO L82 PathProgramCache]: Analyzing trace with hash -740983547, now seen corresponding path program 1 times [2018-12-09 00:13:01,234 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:01,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:01,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,236 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-09 00:13:01,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:01,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 00:13:01,308 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:01,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:13:01,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:13:01,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:13:01,309 INFO L87 Difference]: Start difference. First operand 124 states and 166 transitions. Second operand 4 states. [2018-12-09 00:13:01,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:01,444 INFO L93 Difference]: Finished difference Result 319 states and 452 transitions. [2018-12-09 00:13:01,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 00:13:01,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-12-09 00:13:01,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:01,446 INFO L225 Difference]: With dead ends: 319 [2018-12-09 00:13:01,447 INFO L226 Difference]: Without dead ends: 227 [2018-12-09 00:13:01,447 INFO L631 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 [2018-12-09 00:13:01,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-12-09 00:13:01,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 163. [2018-12-09 00:13:01,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2018-12-09 00:13:01,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 227 transitions. [2018-12-09 00:13:01,455 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 227 transitions. Word has length 32 [2018-12-09 00:13:01,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:01,455 INFO L480 AbstractCegarLoop]: Abstraction has 163 states and 227 transitions. [2018-12-09 00:13:01,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:13:01,455 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 227 transitions. [2018-12-09 00:13:01,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-09 00:13:01,456 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:01,456 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:13:01,457 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:01,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:01,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1838487559, now seen corresponding path program 1 times [2018-12-09 00:13:01,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:01,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:01,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,458 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:01,510 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-12-09 00:13:01,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:01,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 00:13:01,511 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:01,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:13:01,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:13:01,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:13:01,512 INFO L87 Difference]: Start difference. First operand 163 states and 227 transitions. Second operand 5 states. [2018-12-09 00:13:01,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:01,663 INFO L93 Difference]: Finished difference Result 460 states and 643 transitions. [2018-12-09 00:13:01,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:13:01,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-12-09 00:13:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:01,664 INFO L225 Difference]: With dead ends: 460 [2018-12-09 00:13:01,664 INFO L226 Difference]: Without dead ends: 327 [2018-12-09 00:13:01,665 INFO L631 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 [2018-12-09 00:13:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-12-09 00:13:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 176. [2018-12-09 00:13:01,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2018-12-09 00:13:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 243 transitions. [2018-12-09 00:13:01,671 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 243 transitions. Word has length 39 [2018-12-09 00:13:01,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:01,672 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 243 transitions. [2018-12-09 00:13:01,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:13:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 243 transitions. [2018-12-09 00:13:01,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-12-09 00:13:01,673 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:01,673 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:13:01,673 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:01,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:01,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1692244499, now seen corresponding path program 1 times [2018-12-09 00:13:01,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:01,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:01,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,674 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-12-09 00:13:01,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:01,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 00:13:01,718 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:01,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:13:01,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:13:01,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:13:01,718 INFO L87 Difference]: Start difference. First operand 176 states and 243 transitions. Second operand 5 states. [2018-12-09 00:13:01,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:01,882 INFO L93 Difference]: Finished difference Result 466 states and 649 transitions. [2018-12-09 00:13:01,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:13:01,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-12-09 00:13:01,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:01,883 INFO L225 Difference]: With dead ends: 466 [2018-12-09 00:13:01,883 INFO L226 Difference]: Without dead ends: 333 [2018-12-09 00:13:01,883 INFO L631 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 [2018-12-09 00:13:01,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2018-12-09 00:13:01,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 189. [2018-12-09 00:13:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-12-09 00:13:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 257 transitions. [2018-12-09 00:13:01,889 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 257 transitions. Word has length 42 [2018-12-09 00:13:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:01,889 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 257 transitions. [2018-12-09 00:13:01,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:13:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 257 transitions. [2018-12-09 00:13:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-09 00:13:01,890 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:01,890 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:13:01,890 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:01,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:01,891 INFO L82 PathProgramCache]: Analyzing trace with hash -756319486, now seen corresponding path program 1 times [2018-12-09 00:13:01,891 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:01,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:01,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,891 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-09 00:13:01,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:01,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 00:13:01,935 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:01,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:13:01,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:13:01,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:13:01,935 INFO L87 Difference]: Start difference. First operand 189 states and 257 transitions. Second operand 5 states. [2018-12-09 00:13:01,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:01,963 INFO L93 Difference]: Finished difference Result 320 states and 444 transitions. [2018-12-09 00:13:01,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 00:13:01,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-12-09 00:13:01,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:01,964 INFO L225 Difference]: With dead ends: 320 [2018-12-09 00:13:01,964 INFO L226 Difference]: Without dead ends: 164 [2018-12-09 00:13:01,965 INFO L631 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 [2018-12-09 00:13:01,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2018-12-09 00:13:01,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2018-12-09 00:13:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-12-09 00:13:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 224 transitions. [2018-12-09 00:13:01,971 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 224 transitions. Word has length 45 [2018-12-09 00:13:01,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:01,971 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 224 transitions. [2018-12-09 00:13:01,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:13:01,971 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 224 transitions. [2018-12-09 00:13:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 00:13:01,973 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:01,973 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:13:01,973 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:01,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:01,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1331615022, now seen corresponding path program 1 times [2018-12-09 00:13:01,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:01,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:01,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:01,975 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:02,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-09 00:13:02,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:02,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:13:02,014 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:02,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:13:02,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:13:02,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:13:02,014 INFO L87 Difference]: Start difference. First operand 164 states and 224 transitions. Second operand 3 states. [2018-12-09 00:13:02,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:02,023 INFO L93 Difference]: Finished difference Result 221 states and 304 transitions. [2018-12-09 00:13:02,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:13:02,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-12-09 00:13:02,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:02,023 INFO L225 Difference]: With dead ends: 221 [2018-12-09 00:13:02,024 INFO L226 Difference]: Without dead ends: 191 [2018-12-09 00:13:02,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:13:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-12-09 00:13:02,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2018-12-09 00:13:02,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-12-09 00:13:02,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 262 transitions. [2018-12-09 00:13:02,028 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 262 transitions. Word has length 51 [2018-12-09 00:13:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:02,028 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 262 transitions. [2018-12-09 00:13:02,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:13:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 262 transitions. [2018-12-09 00:13:02,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 00:13:02,029 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:02,029 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:13:02,029 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:02,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:02,030 INFO L82 PathProgramCache]: Analyzing trace with hash 822141932, now seen corresponding path program 1 times [2018-12-09 00:13:02,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:02,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:02,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:02,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:02,030 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:02,072 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-09 00:13:02,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:13:02,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 00:13:02,073 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:13:02,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:13:02,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:13:02,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:13:02,073 INFO L87 Difference]: Start difference. First operand 191 states and 262 transitions. Second operand 4 states. [2018-12-09 00:13:02,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:13:02,134 INFO L93 Difference]: Finished difference Result 377 states and 533 transitions. [2018-12-09 00:13:02,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:13:02,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-12-09 00:13:02,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:13:02,135 INFO L225 Difference]: With dead ends: 377 [2018-12-09 00:13:02,135 INFO L226 Difference]: Without dead ends: 214 [2018-12-09 00:13:02,135 INFO L631 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 [2018-12-09 00:13:02,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-12-09 00:13:02,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 158. [2018-12-09 00:13:02,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-12-09 00:13:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 215 transitions. [2018-12-09 00:13:02,140 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 215 transitions. Word has length 51 [2018-12-09 00:13:02,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:13:02,140 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 215 transitions. [2018-12-09 00:13:02,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:13:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 215 transitions. [2018-12-09 00:13:02,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-09 00:13:02,141 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:13:02,141 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-09 00:13:02,142 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mp_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr37ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, mp_addErr34ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:13:02,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:02,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1861436546, now seen corresponding path program 1 times [2018-12-09 00:13:02,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:13:02,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:02,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:13:02,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:13:02,144 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:13:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:13:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 00:13:02,199 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:13:02,199 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:13:02,200 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2018-12-09 00:13:02,201 INFO L205 CegarAbsIntRunner]: [0], [3], [5], [7], [26], [31], [60], [62], [69], [71], [116], [120], [123], [125], [127], [129], [133], [135], [137], [139], [143], [145], [147], [149], [159], [166], [168], [172], [174], [178], [180], [184], [186], [192], [195], [197], [206], [241], [243], [245], [247], [248], [253], [257], [273], [274], [275], [277] [2018-12-09 00:13:02,222 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:13:02,222 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:13:02,299 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 00:13:02,300 INFO L272 AbstractInterpreter]: Visited 17 different actions 17 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. [2018-12-09 00:13:02,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:13:02,305 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 00:13:02,310 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:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) 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:1518) 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:592) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.generateAbsIntPredicates(CegarAbsIntRunner.java:551) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.createInterpolantGenerator(CegarAbsIntRunner.java:403) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner$AbsIntCurrentIteration.getInterpolantGenerator(CegarAbsIntRunner.java:387) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.getInterpolantGenerator(CegarAbsIntRunner.java:260) 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 [2018-12-09 00:13:02,312 INFO L168 Benchmark]: Toolchain (without parser) took 2145.78 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 953.4 MB in the beginning and 991.3 MB in the end (delta: -37.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:13:02,313 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:13:02,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.86 ms. Allocated memory is still 1.0 GB. Free memory was 953.4 MB in the beginning and 936.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-12-09 00:13:02,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.37 ms. Allocated memory is still 1.0 GB. Free memory is still 936.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:13:02,314 INFO L168 Benchmark]: Boogie Preprocessor took 51.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:13:02,314 INFO L168 Benchmark]: RCFGBuilder took 261.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:13:02,314 INFO L168 Benchmark]: TraceAbstraction took 1646.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.3 MB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2018-12-09 00:13:02,316 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.86 ms. Allocated memory is still 1.0 GB. Free memory was 953.4 MB in the beginning and 936.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.37 ms. Allocated memory is still 1.0 GB. Free memory is still 936.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.8 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 261.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1646.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 991.3 MB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 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...