./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_range_init_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_range_init_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea1e21452d44e76a580b1aace72c795f8c49bc7d ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_range_init_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea1e21452d44e76a580b1aace72c795f8c49bc7d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:50:06,975 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:50:06,977 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:50:06,986 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:50:06,986 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:50:06,987 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:50:06,988 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:50:06,989 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:50:06,991 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:50:06,991 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:50:06,992 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:50:06,992 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:50:06,993 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:50:06,994 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:50:06,995 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:50:06,995 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:50:06,996 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:50:06,998 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:50:06,999 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:50:07,001 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:50:07,002 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:50:07,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:50:07,005 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:50:07,005 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:50:07,005 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:50:07,006 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:50:07,007 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:50:07,008 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:50:07,013 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:50:07,014 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:50:07,015 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:50:07,015 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:50:07,015 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:50:07,016 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:50:07,017 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:50:07,018 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:50:07,018 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:50:07,033 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:50:07,033 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:50:07,034 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:50:07,034 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:50:07,034 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:50:07,035 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:50:07,035 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:50:07,035 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:50:07,035 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:50:07,035 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:50:07,035 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:50:07,036 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:50:07,039 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:50:07,039 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:50:07,039 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:50:07,040 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:50:07,040 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:50:07,040 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:50:07,040 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:50:07,040 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:50:07,040 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:50:07,040 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:50:07,041 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:50:07,041 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:50:07,041 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:50:07,041 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:50:07,041 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:50:07,041 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:50:07,041 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:50:07,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:50:07,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:50:07,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:50:07,045 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:50:07,046 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:50:07,046 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:50:07,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:50:07,046 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:50:07,046 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_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea1e21452d44e76a580b1aace72c795f8c49bc7d [2018-11-18 17:50:07,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:50:07,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:50:07,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:50:07,097 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:50:07,097 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:50:07,098 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/../../sv-benchmarks/c/array-industry-pattern/array_range_init_false-unreach-call.i [2018-11-18 17:50:07,143 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data/830ced059/2b56f8845aa1426faca694083666b088/FLAG381f9ed07 [2018-11-18 17:50:07,526 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:50:07,526 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/sv-benchmarks/c/array-industry-pattern/array_range_init_false-unreach-call.i [2018-11-18 17:50:07,531 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data/830ced059/2b56f8845aa1426faca694083666b088/FLAG381f9ed07 [2018-11-18 17:50:07,543 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data/830ced059/2b56f8845aa1426faca694083666b088 [2018-11-18 17:50:07,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:50:07,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:50:07,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:50:07,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:50:07,553 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:50:07,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74466433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07, skipping insertion in model container [2018-11-18 17:50:07,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:50:07,582 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:50:07,727 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:50:07,734 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:50:07,748 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:50:07,766 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:50:07,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07 WrapperNode [2018-11-18 17:50:07,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:50:07,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:50:07,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:50:07,767 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:50:07,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:50:07,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:50:07,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:50:07,789 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:50:07,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... [2018-11-18 17:50:07,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:50:07,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:50:07,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:50:07,812 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:50:07,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:50:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 17:50:07,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:50:07,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:50:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:50:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:50:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:50:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 17:50:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:50:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:50:07,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 17:50:07,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 17:50:08,195 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:50:08,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:50:08 BoogieIcfgContainer [2018-11-18 17:50:08,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:50:08,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:50:08,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:50:08,198 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:50:08,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:50:07" (1/3) ... [2018-11-18 17:50:08,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9b2eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:50:08, skipping insertion in model container [2018-11-18 17:50:08,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:07" (2/3) ... [2018-11-18 17:50:08,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9b2eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:50:08, skipping insertion in model container [2018-11-18 17:50:08,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:50:08" (3/3) ... [2018-11-18 17:50:08,201 INFO L112 eAbstractionObserver]: Analyzing ICFG array_range_init_false-unreach-call.i [2018-11-18 17:50:08,210 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:50:08,214 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:50:08,224 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:50:08,246 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:50:08,246 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:50:08,246 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:50:08,246 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:50:08,246 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:50:08,247 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:50:08,247 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:50:08,247 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:50:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-18 17:50:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 17:50:08,264 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:08,265 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:08,267 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:08,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:08,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1998114151, now seen corresponding path program 1 times [2018-11-18 17:50:08,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:08,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:08,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:08,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:08,304 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:08,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:08,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:08,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:50:08,361 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:08,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:50:08,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:50:08,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:50:08,374 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-11-18 17:50:08,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:08,388 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2018-11-18 17:50:08,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:50:08,389 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 17:50:08,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:08,395 INFO L225 Difference]: With dead ends: 44 [2018-11-18 17:50:08,395 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 17:50:08,398 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:50:08,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 17:50:08,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 17:50:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 17:50:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-18 17:50:08,425 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 14 [2018-11-18 17:50:08,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:08,426 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-18 17:50:08,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:50:08,426 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 17:50:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:50:08,426 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:08,427 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:08,427 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:08,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:08,427 INFO L82 PathProgramCache]: Analyzing trace with hash 744020129, now seen corresponding path program 1 times [2018-11-18 17:50:08,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:08,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:08,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:08,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:08,429 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:08,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:08,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:50:08,463 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:08,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:50:08,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:50:08,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:50:08,465 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 3 states. [2018-11-18 17:50:08,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:08,521 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2018-11-18 17:50:08,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:50:08,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 17:50:08,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:08,524 INFO L225 Difference]: With dead ends: 47 [2018-11-18 17:50:08,524 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 17:50:08,525 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:50:08,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 17:50:08,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2018-11-18 17:50:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 17:50:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-18 17:50:08,535 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 15 [2018-11-18 17:50:08,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:08,535 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-18 17:50:08,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:50:08,535 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-18 17:50:08,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 17:50:08,536 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:08,536 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:08,536 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:08,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:08,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1500525368, now seen corresponding path program 1 times [2018-11-18 17:50:08,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:08,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:08,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:08,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:08,538 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:08,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:08,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:08,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 17:50:08,643 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:50:08,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:50:08,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:50:08,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:50:08,643 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 4 states. [2018-11-18 17:50:08,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:08,802 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2018-11-18 17:50:08,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:50:08,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-11-18 17:50:08,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:08,805 INFO L225 Difference]: With dead ends: 52 [2018-11-18 17:50:08,806 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 17:50:08,806 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 17:50:08,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 17:50:08,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 28. [2018-11-18 17:50:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 17:50:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-11-18 17:50:08,810 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 19 [2018-11-18 17:50:08,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:08,810 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-11-18 17:50:08,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:50:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-18 17:50:08,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 17:50:08,811 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:08,811 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:08,812 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:08,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:08,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1231278033, now seen corresponding path program 1 times [2018-11-18 17:50:08,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:50:08,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:08,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:08,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:50:08,813 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:50:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:08,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:08,991 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 17:50:08,992 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-11-18 17:50:08,993 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [17], [19], [21], [25], [29], [34], [44], [47], [49], [55], [56], [57], [59] [2018-11-18 17:50:09,024 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 17:50:09,025 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 17:50:09,109 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-18 17:50:09,112 INFO L168 Benchmark]: Toolchain (without parser) took 1565.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 953.1 MB in the beginning and 1.1 GB in the end (delta: -131.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:09,114 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:50:09,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.64 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:09,115 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.79 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:09,116 INFO L168 Benchmark]: Boogie Preprocessor took 22.16 ms. Allocated memory is still 1.0 GB. Free memory is still 939.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:50:09,116 INFO L168 Benchmark]: RCFGBuilder took 383.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -202.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:09,117 INFO L168 Benchmark]: TraceAbstraction took 915.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:50:09,120 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 217.64 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 942.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.79 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.16 ms. Allocated memory is still 1.0 GB. Free memory is still 939.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 383.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -202.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 915.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 17:50:11,546 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:50:11,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:50:11,558 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:50:11,559 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:50:11,559 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:50:11,560 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:50:11,562 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:50:11,566 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:50:11,567 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:50:11,568 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:50:11,568 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:50:11,575 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:50:11,576 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:50:11,577 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:50:11,577 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:50:11,578 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:50:11,579 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:50:11,586 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:50:11,587 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:50:11,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:50:11,588 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:50:11,590 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:50:11,590 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:50:11,590 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:50:11,591 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:50:11,592 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:50:11,592 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:50:11,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:50:11,606 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:50:11,606 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:50:11,606 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:50:11,606 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:50:11,606 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:50:11,607 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:50:11,608 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:50:11,608 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 17:50:11,631 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:50:11,631 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:50:11,631 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:50:11,632 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:50:11,632 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:50:11,632 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:50:11,632 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:50:11,632 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:50:11,633 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:50:11,633 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:50:11,634 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:50:11,634 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:50:11,634 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:50:11,634 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:50:11,634 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:50:11,635 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:50:11,635 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:50:11,635 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 17:50:11,635 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 17:50:11,635 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:50:11,635 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:50:11,636 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:50:11,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:50:11,636 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:50:11,636 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:50:11,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:50:11,636 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:50:11,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:50:11,636 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:50:11,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:50:11,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:50:11,637 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 17:50:11,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:50:11,637 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 17:50:11,637 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 17:50:11,637 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea1e21452d44e76a580b1aace72c795f8c49bc7d [2018-11-18 17:50:11,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:50:11,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:50:11,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:50:11,722 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:50:11,722 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:50:11,723 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/../../sv-benchmarks/c/array-industry-pattern/array_range_init_false-unreach-call.i [2018-11-18 17:50:11,826 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data/1ed804d24/63385d982f324f5ca9e0a809af312a2b/FLAGdda5070d4 [2018-11-18 17:50:12,191 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:50:12,191 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/sv-benchmarks/c/array-industry-pattern/array_range_init_false-unreach-call.i [2018-11-18 17:50:12,195 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data/1ed804d24/63385d982f324f5ca9e0a809af312a2b/FLAGdda5070d4 [2018-11-18 17:50:12,204 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/data/1ed804d24/63385d982f324f5ca9e0a809af312a2b [2018-11-18 17:50:12,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:50:12,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:50:12,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:50:12,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:50:12,210 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:50:12,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6b3161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12, skipping insertion in model container [2018-11-18 17:50:12,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:50:12,236 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:50:12,366 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:50:12,372 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:50:12,386 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:50:12,405 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:50:12,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12 WrapperNode [2018-11-18 17:50:12,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:50:12,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:50:12,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:50:12,406 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:50:12,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:50:12,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:50:12,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:50:12,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:50:12,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... [2018-11-18 17:50:12,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:50:12,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:50:12,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:50:12,451 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:50:12,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:50:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:50:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:50:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:50:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 17:50:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:50:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:50:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:50:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:50:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 17:50:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 17:50:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 17:50:12,743 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:50:12,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:50:12 BoogieIcfgContainer [2018-11-18 17:50:12,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:50:12,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:50:12,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:50:12,746 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:50:12,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:50:12" (1/3) ... [2018-11-18 17:50:12,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ae645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:50:12, skipping insertion in model container [2018-11-18 17:50:12,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:50:12" (2/3) ... [2018-11-18 17:50:12,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23ae645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:50:12, skipping insertion in model container [2018-11-18 17:50:12,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:50:12" (3/3) ... [2018-11-18 17:50:12,749 INFO L112 eAbstractionObserver]: Analyzing ICFG array_range_init_false-unreach-call.i [2018-11-18 17:50:12,754 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:50:12,759 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:50:12,768 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:50:12,786 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:50:12,787 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:50:12,787 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:50:12,787 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:50:12,787 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:50:12,787 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:50:12,787 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:50:12,787 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:50:12,787 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:50:12,798 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-18 17:50:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 17:50:12,803 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:12,803 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:12,805 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:12,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:12,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1998114151, now seen corresponding path program 1 times [2018-11-18 17:50:12,811 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:50:12,811 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:50:12,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:12,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:12,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:12,895 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:50:12,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:12,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:50:12,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 17:50:12,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 17:50:12,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:50:12,916 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-11-18 17:50:12,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:12,934 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2018-11-18 17:50:12,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 17:50:12,935 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-18 17:50:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:12,942 INFO L225 Difference]: With dead ends: 44 [2018-11-18 17:50:12,942 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 17:50:12,945 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 17:50:12,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 17:50:12,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 17:50:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 17:50:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-18 17:50:12,975 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 14 [2018-11-18 17:50:12,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:12,976 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-18 17:50:12,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 17:50:12,976 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 17:50:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 17:50:12,977 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:12,977 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:12,977 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:12,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:12,978 INFO L82 PathProgramCache]: Analyzing trace with hash 744020129, now seen corresponding path program 1 times [2018-11-18 17:50:12,978 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:50:12,978 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:50:13,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:13,031 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:13,050 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:50:13,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:50:13,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:50:13,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:50:13,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:50:13,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:50:13,053 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 3 states. [2018-11-18 17:50:13,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:13,099 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2018-11-18 17:50:13,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:50:13,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 17:50:13,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:13,101 INFO L225 Difference]: With dead ends: 47 [2018-11-18 17:50:13,101 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 17:50:13,102 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:50:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 17:50:13,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 25. [2018-11-18 17:50:13,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 17:50:13,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-18 17:50:13,113 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 15 [2018-11-18 17:50:13,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:13,113 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-18 17:50:13,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:50:13,113 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-18 17:50:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 17:50:13,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:13,114 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:13,114 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:13,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:13,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1500525368, now seen corresponding path program 1 times [2018-11-18 17:50:13,115 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:50:13,115 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:50:13,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:13,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:13,225 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:13,359 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:13,359 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:50:13,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:13,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:13,442 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:50:13,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 17:50:13,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4] total 8 [2018-11-18 17:50:13,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 17:50:13,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 17:50:13,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-11-18 17:50:13,461 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 8 states. [2018-11-18 17:50:13,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:13,783 INFO L93 Difference]: Finished difference Result 88 states and 106 transitions. [2018-11-18 17:50:13,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 17:50:13,784 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-11-18 17:50:13,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:13,786 INFO L225 Difference]: With dead ends: 88 [2018-11-18 17:50:13,786 INFO L226 Difference]: Without dead ends: 72 [2018-11-18 17:50:13,786 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2018-11-18 17:50:13,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-18 17:50:13,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 44. [2018-11-18 17:50:13,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-18 17:50:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-11-18 17:50:13,795 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 19 [2018-11-18 17:50:13,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:13,796 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-11-18 17:50:13,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 17:50:13,796 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-11-18 17:50:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 17:50:13,797 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:13,797 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:13,798 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:13,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:13,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1618484943, now seen corresponding path program 1 times [2018-11-18 17:50:13,799 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:50:13,799 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:50:13,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:13,857 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:14,038 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:14,238 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:14,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:14,247 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:50:14,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:50:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:50:14,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:14,297 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 17:50:14,297 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 17:50:14,643 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 17:50:14,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 6, 7] total 21 [2018-11-18 17:50:14,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-18 17:50:14,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-18 17:50:14,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2018-11-18 17:50:14,644 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 21 states. [2018-11-18 17:50:15,470 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 24 [2018-11-18 17:50:15,915 WARN L180 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 19 [2018-11-18 17:50:18,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:50:18,031 INFO L93 Difference]: Finished difference Result 206 states and 247 transitions. [2018-11-18 17:50:18,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-18 17:50:18,031 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 39 [2018-11-18 17:50:18,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:50:18,033 INFO L225 Difference]: With dead ends: 206 [2018-11-18 17:50:18,033 INFO L226 Difference]: Without dead ends: 179 [2018-11-18 17:50:18,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 132 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=691, Invalid=1289, Unknown=0, NotChecked=0, Total=1980 [2018-11-18 17:50:18,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-11-18 17:50:18,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 92. [2018-11-18 17:50:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-11-18 17:50:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2018-11-18 17:50:18,047 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 39 [2018-11-18 17:50:18,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:50:18,047 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2018-11-18 17:50:18,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-18 17:50:18,047 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2018-11-18 17:50:18,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-11-18 17:50:18,049 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:50:18,049 INFO L375 BasicCegarLoop]: trace histogram [19, 18, 18, 11, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:50:18,049 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:50:18,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:50:18,049 INFO L82 PathProgramCache]: Analyzing trace with hash -353083059, now seen corresponding path program 2 times [2018-11-18 17:50:18,050 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:50:18,050 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:50:18,067 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 17:50:18,150 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 17:50:18,150 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 17:50:18,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:18,358 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:19,348 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:50:19,350 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:50:19,350 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:50:19,356 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 17:50:19,402 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 17:50:19,402 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 17:50:19,407 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:50:19,444 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 317 proven. 253 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-18 17:50:19,444 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:50:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 317 proven. 253 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-18 17:50:20,935 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 17:50:20,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 14, 15] total 53 [2018-11-18 17:50:20,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 53 states [2018-11-18 17:50:20,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2018-11-18 17:50:20,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=750, Invalid=2006, Unknown=0, NotChecked=0, Total=2756 [2018-11-18 17:50:20,937 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand 53 states. [2018-11-18 17:50:23,235 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 12 [2018-11-18 17:50:23,472 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 12 [2018-11-18 17:50:24,015 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 12 [2018-11-18 17:50:26,262 WARN L180 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2018-11-18 17:50:26,976 WARN L180 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 59 [2018-11-18 17:50:27,884 WARN L180 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2018-11-18 17:50:28,554 WARN L180 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2018-11-18 17:50:29,339 WARN L180 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2018-11-18 17:50:30,075 WARN L180 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2018-11-18 17:50:30,763 WARN L180 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2018-11-18 17:50:31,392 WARN L180 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2018-11-18 17:50:32,239 WARN L180 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2018-11-18 17:50:33,083 WARN L180 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2018-11-18 17:50:33,837 WARN L180 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2018-11-18 17:50:34,550 WARN L180 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2018-11-18 17:50:35,267 WARN L180 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2018-11-18 17:50:35,893 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-11-18 17:50:36,550 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-11-18 17:50:37,425 WARN L180 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2018-11-18 17:50:38,232 WARN L180 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2018-11-18 17:50:38,997 WARN L180 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2018-11-18 17:50:40,114 WARN L180 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2018-11-18 17:50:40,731 WARN L180 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2018-11-18 17:50:41,510 WARN L180 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2018-11-18 17:50:42,376 WARN L180 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2018-11-18 17:50:43,246 WARN L180 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-11-18 17:50:43,886 WARN L180 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2018-11-18 17:50:44,596 WARN L180 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2018-11-18 17:50:45,239 WARN L180 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2018-11-18 17:50:45,937 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2018-11-18 17:50:46,806 WARN L180 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2018-11-18 17:50:47,450 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2018-11-18 17:50:48,015 WARN L180 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2018-11-18 17:50:48,663 WARN L180 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2018-11-18 17:50:49,205 WARN L180 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2018-11-18 17:50:50,008 WARN L180 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2018-11-18 17:50:50,445 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-11-18 17:50:51,074 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-18 17:50:51,371 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-18 17:50:51,795 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-11-18 17:50:52,561 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2018-11-18 17:51:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:51:02,600 INFO L93 Difference]: Finished difference Result 526 states and 635 transitions. [2018-11-18 17:51:02,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2018-11-18 17:51:02,600 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 87 [2018-11-18 17:51:02,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:51:02,602 INFO L225 Difference]: With dead ends: 526 [2018-11-18 17:51:02,602 INFO L226 Difference]: Without dead ends: 475 [2018-11-18 17:51:02,607 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 292 SyntacticMatches, 3 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3017 ImplicationChecksByTransitivity, 38.8s TimeCoverageRelationStatistics Valid=4829, Invalid=9691, Unknown=0, NotChecked=0, Total=14520 [2018-11-18 17:51:02,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2018-11-18 17:51:02,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 220. [2018-11-18 17:51:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-11-18 17:51:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 240 transitions. [2018-11-18 17:51:02,648 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 240 transitions. Word has length 87 [2018-11-18 17:51:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:51:02,648 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 240 transitions. [2018-11-18 17:51:02,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2018-11-18 17:51:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 240 transitions. [2018-11-18 17:51:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-11-18 17:51:02,652 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:51:02,652 INFO L375 BasicCegarLoop]: trace histogram [51, 50, 50, 31, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:51:02,652 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:51:02,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:51:02,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1727670203, now seen corresponding path program 3 times [2018-11-18 17:51:02,653 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:51:02,653 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:51:02,670 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 17:51:12,109 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2018-11-18 17:51:12,109 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 17:51:12,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:51:13,540 INFO L134 CoverageAnalysis]: Checked inductivity of 5000 backedges. 2429 proven. 741 refuted. 0 times theorem prover too weak. 1830 trivial. 0 not checked. [2018-11-18 17:51:13,540 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:51:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 5000 backedges. 2429 proven. 741 refuted. 0 times theorem prover too weak. 1830 trivial. 0 not checked. [2018-11-18 17:51:16,311 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:51:16,311 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:51:16,318 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 17:53:14,336 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2018-11-18 17:53:14,336 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 17:53:14,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:53:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5000 backedges. 2429 proven. 741 refuted. 0 times theorem prover too weak. 1830 trivial. 0 not checked. [2018-11-18 17:53:18,654 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 17:53:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5000 backedges. 2429 proven. 741 refuted. 0 times theorem prover too weak. 1830 trivial. 0 not checked. [2018-11-18 17:53:19,098 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 17:53:19,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24, 24, 24] total 65 [2018-11-18 17:53:19,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-11-18 17:53:19,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-11-18 17:53:19,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1240, Invalid=2920, Unknown=0, NotChecked=0, Total=4160 [2018-11-18 17:53:19,100 INFO L87 Difference]: Start difference. First operand 220 states and 240 transitions. Second operand 65 states. [2018-11-18 17:53:23,432 WARN L180 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 14 [2018-11-18 17:53:23,692 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 16 [2018-11-18 17:53:23,912 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 14 [2018-11-18 17:53:24,188 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 16 [2018-11-18 17:53:24,486 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 14 [2018-11-18 17:53:24,830 WARN L180 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 16 [2018-11-18 17:53:25,263 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 16 [2018-11-18 17:53:25,511 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 14 [2018-11-18 17:53:25,829 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 16 [2018-11-18 17:53:26,059 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 14 [2018-11-18 17:53:26,284 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 11 [2018-11-18 17:53:26,495 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 9 [2018-11-18 17:53:26,736 WARN L180 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 16 [2018-11-18 17:53:26,978 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 14 [2018-11-18 17:53:27,463 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 16 [2018-11-18 17:53:28,017 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 14 [2018-11-18 17:53:31,219 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 7 [2018-11-18 17:53:31,921 WARN L180 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 7 [2018-11-18 17:53:32,762 WARN L180 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 7 [2018-11-18 17:53:33,491 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 7 [2018-11-18 17:53:34,178 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 7 [2018-11-18 17:53:34,811 WARN L180 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 7 [2018-11-18 17:53:35,534 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 7 [2018-11-18 17:53:36,149 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 7 [2018-11-18 17:53:36,718 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 7 [2018-11-18 17:53:41,983 WARN L180 SmtUtils]: Spent 518.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2018-11-18 17:53:46,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:53:46,954 INFO L93 Difference]: Finished difference Result 723 states and 857 transitions. [2018-11-18 17:53:46,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2018-11-18 17:53:46,954 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 215 [2018-11-18 17:53:46,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:53:46,956 INFO L225 Difference]: With dead ends: 723 [2018-11-18 17:53:46,956 INFO L226 Difference]: Without dead ends: 592 [2018-11-18 17:53:46,958 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 812 SyntacticMatches, 3 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4810 ImplicationChecksByTransitivity, 27.2s TimeCoverageRelationStatistics Valid=5368, Invalid=10132, Unknown=0, NotChecked=0, Total=15500 [2018-11-18 17:53:46,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-11-18 17:53:46,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 308. [2018-11-18 17:53:46,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308 states. [2018-11-18 17:53:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 331 transitions. [2018-11-18 17:53:47,001 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 331 transitions. Word has length 215 [2018-11-18 17:53:47,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:53:47,001 INFO L480 AbstractCegarLoop]: Abstraction has 308 states and 331 transitions. [2018-11-18 17:53:47,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-11-18 17:53:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 331 transitions. [2018-11-18 17:53:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-11-18 17:53:47,006 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:53:47,006 INFO L375 BasicCegarLoop]: trace histogram [73, 72, 72, 41, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:53:47,006 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:53:47,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:53:47,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1750552853, now seen corresponding path program 4 times [2018-11-18 17:53:47,007 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 17:53:47,007 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_03346c0b-df19-4c3d-846d-abaecf50a1e9/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:53:47,024 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 17:53:47,241 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 17:53:47,241 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.partitionStmtsAccordingToConstantSize(AnnotateAndAsserterWithStmtOrderPrioritization.java:377) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.annotateAndAssertStmtsAccording5Heuristic(AnnotateAndAsserterWithStmtOrderPrioritization.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserterWithStmtOrderPrioritization.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 17:53:47,244 INFO L168 Benchmark]: Toolchain (without parser) took 215037.89 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 302.5 MB). Free memory was 951.9 MB in the beginning and 1.2 GB in the end (delta: -204.2 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:53:47,249 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:53:47,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.36 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:53:47,250 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.57 ms. Allocated memory is still 1.0 GB. Free memory was 941.2 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:53:47,250 INFO L168 Benchmark]: Boogie Preprocessor took 24.21 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:53:47,250 INFO L168 Benchmark]: RCFGBuilder took 292.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:53:47,251 INFO L168 Benchmark]: TraceAbstraction took 214499.10 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 154.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -28.9 MB). Peak memory consumption was 125.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:53:47,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.36 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.57 ms. Allocated memory is still 1.0 GB. Free memory was 941.2 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.21 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 292.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 214499.10 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 154.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -28.9 MB). Peak memory consumption was 125.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...