./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/ludcmp_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_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/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 a81eebddb84f05353da2fe57e839b2276721ce6a ............................................................................................................................................................................................................................................................................................................................................................................... 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_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/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 a81eebddb84f05353da2fe57e839b2276721ce6a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:17:59,773 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:17:59,775 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:17:59,784 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:17:59,784 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:17:59,785 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:17:59,786 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:17:59,787 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:17:59,788 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:17:59,789 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:17:59,790 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:17:59,790 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:17:59,791 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:17:59,792 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:17:59,793 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:17:59,793 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:17:59,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:17:59,796 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:17:59,797 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:17:59,798 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:17:59,799 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:17:59,800 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:17:59,802 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:17:59,802 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:17:59,802 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:17:59,803 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:17:59,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:17:59,805 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:17:59,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:17:59,806 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:17:59,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:17:59,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:17:59,807 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:17:59,807 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:17:59,808 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:17:59,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:17:59,809 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:17:59,819 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:17:59,820 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:17:59,820 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:17:59,820 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:17:59,821 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:17:59,821 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:17:59,821 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:17:59,821 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:17:59,821 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:17:59,821 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:17:59,821 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:17:59,822 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:17:59,822 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:17:59,822 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:17:59,822 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:17:59,823 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:17:59,823 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:17:59,823 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:17:59,823 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:17:59,825 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:17:59,825 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:17:59,825 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:17:59,825 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:17:59,825 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:17:59,826 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:17:59,826 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:17:59,826 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:17:59,826 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:17:59,826 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:17:59,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:17:59,826 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:17:59,826 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:17:59,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:17:59,827 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:17:59,827 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:17:59,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:17:59,827 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:17:59,827 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_70b060aa-2614-4082-9425-66c5a3d44c21/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 -> a81eebddb84f05353da2fe57e839b2276721ce6a [2018-11-18 15:17:59,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:17:59,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:17:59,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:17:59,857 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:17:59,858 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:17:59,858 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-18 15:17:59,893 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data/17cc3b0ae/bece23cdd57849fc95287b5130ad651f/FLAG5851247f4 [2018-11-18 15:18:00,287 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:18:00,287 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-18 15:18:00,292 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data/17cc3b0ae/bece23cdd57849fc95287b5130ad651f/FLAG5851247f4 [2018-11-18 15:18:00,301 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data/17cc3b0ae/bece23cdd57849fc95287b5130ad651f [2018-11-18 15:18:00,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:18:00,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:18:00,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:00,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:18:00,307 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:18:00,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e32060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00, skipping insertion in model container [2018-11-18 15:18:00,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:18:00,331 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:18:00,466 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:00,471 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:18:00,498 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:00,510 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:18:00,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00 WrapperNode [2018-11-18 15:18:00,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:00,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:00,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:18:00,511 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:18:00,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:00,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:18:00,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:18:00,528 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:18:00,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... [2018-11-18 15:18:00,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:18:00,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:18:00,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:18:00,595 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:18:00,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/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 15:18:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-11-18 15:18:00,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-11-18 15:18:00,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 15:18:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:18:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:18:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-11-18 15:18:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-11-18 15:18:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 15:18:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:18:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:18:00,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:18:00,645 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:18:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:18:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 15:18:00,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 15:18:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:18:00,963 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:18:00,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:00 BoogieIcfgContainer [2018-11-18 15:18:00,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:18:00,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:18:00,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:18:00,967 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:18:00,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:18:00" (1/3) ... [2018-11-18 15:18:00,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482c13f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:18:00, skipping insertion in model container [2018-11-18 15:18:00,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:00" (2/3) ... [2018-11-18 15:18:00,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482c13f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:18:00, skipping insertion in model container [2018-11-18 15:18:00,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:00" (3/3) ... [2018-11-18 15:18:00,970 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-11-18 15:18:00,978 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:18:00,994 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:18:01,008 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:18:01,035 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:18:01,035 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:18:01,035 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:18:01,036 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:18:01,036 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:18:01,036 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:18:01,036 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:18:01,036 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:18:01,051 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-11-18 15:18:01,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 15:18:01,056 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:01,057 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:01,059 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:01,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:01,063 INFO L82 PathProgramCache]: Analyzing trace with hash 765892228, now seen corresponding path program 1 times [2018-11-18 15:18:01,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:18:01,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:01,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:01,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:01,106 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:18:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:01,176 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 15:18:01,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:01,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:18:01,178 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:18:01,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:18:01,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:18:01,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:18:01,195 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-11-18 15:18:01,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:01,217 INFO L93 Difference]: Finished difference Result 144 states and 200 transitions. [2018-11-18 15:18:01,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:18:01,218 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-11-18 15:18:01,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:01,222 INFO L225 Difference]: With dead ends: 144 [2018-11-18 15:18:01,223 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 15:18:01,226 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 15:18:01,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 15:18:01,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 15:18:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 15:18:01,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-18 15:18:01,252 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2018-11-18 15:18:01,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:01,252 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-18 15:18:01,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:18:01,252 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 15:18:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 15:18:01,253 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:01,253 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:01,253 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:01,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:01,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1771472002, now seen corresponding path program 1 times [2018-11-18 15:18:01,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:18:01,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:01,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:01,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:01,255 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:18:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:01,312 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 15:18:01,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:01,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 15:18:01,312 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:18:01,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:18:01,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:18:01,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:18:01,314 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 4 states. [2018-11-18 15:18:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:01,366 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-11-18 15:18:01,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:18:01,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-18 15:18:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:01,367 INFO L225 Difference]: With dead ends: 43 [2018-11-18 15:18:01,367 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 15:18:01,368 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 15:18:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 15:18:01,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-11-18 15:18:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-18 15:18:01,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-11-18 15:18:01,372 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2018-11-18 15:18:01,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:01,372 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-11-18 15:18:01,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:18:01,372 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-18 15:18:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:18:01,373 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:01,373 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 15:18:01,373 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:01,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:01,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1929070916, now seen corresponding path program 1 times [2018-11-18 15:18:01,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:18:01,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:01,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:01,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:18:01,375 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:18:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:01,441 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 15:18:01,441 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:01,441 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:18:01,442 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-11-18 15:18:01,444 INFO L202 CegarAbsIntRunner]: [150], [151], [164], [168], [173], [177], [180], [182], [185], [189], [191], [205], [208], [210], [218], [219], [220], [222] [2018-11-18 15:18:01,474 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:18:01,474 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:18:01,537 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 Real (Array Int Real)) 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 Real (Array Int Real)) 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.translateStore(MappedTerm2Expression.java:288) 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.translateStore(MappedTerm2Expression.java:288) 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 15:18:01,540 INFO L168 Benchmark]: Toolchain (without parser) took 1236.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -117.6 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:01,541 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:18:01,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.31 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 940.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:01,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.89 ms. Allocated memory is still 1.0 GB. Free memory was 940.4 MB in the beginning and 937.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:01,542 INFO L168 Benchmark]: Boogie Preprocessor took 66.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 937.7 MB in the beginning and 1.1 GB in the end (delta: -210.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:01,543 INFO L168 Benchmark]: RCFGBuilder took 369.08 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: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:01,543 INFO L168 Benchmark]: TraceAbstraction took 575.57 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: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:01,546 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.31 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 940.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.89 ms. Allocated memory is still 1.0 GB. Free memory was 940.4 MB in the beginning and 937.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 937.7 MB in the beginning and 1.1 GB in the end (delta: -210.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 369.08 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: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 575.57 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: 43.6 MB). Peak memory consumption was 43.6 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 Real (Array Int Real)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Real (Array Int Real)): 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 15:18:03,158 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:18:03,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:18:03,168 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:18:03,168 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:18:03,169 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:18:03,170 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:18:03,171 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:18:03,172 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:18:03,173 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:18:03,173 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:18:03,173 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:18:03,174 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:18:03,175 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:18:03,175 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:18:03,176 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:18:03,176 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:18:03,178 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:18:03,179 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:18:03,180 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:18:03,181 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:18:03,182 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:18:03,183 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:18:03,183 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:18:03,184 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:18:03,184 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:18:03,185 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:18:03,186 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:18:03,186 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:18:03,187 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:18:03,187 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:18:03,188 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:18:03,188 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:18:03,188 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:18:03,189 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:18:03,189 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:18:03,190 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 15:18:03,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:18:03,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:18:03,210 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:18:03,210 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:18:03,210 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:18:03,210 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:18:03,211 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:18:03,211 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:18:03,211 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:18:03,211 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:18:03,211 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:18:03,212 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:18:03,212 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:18:03,212 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:18:03,212 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:18:03,212 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:18:03,212 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:18:03,212 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:18:03,213 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:18:03,213 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:18:03,213 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:18:03,213 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:18:03,213 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:18:03,213 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:18:03,213 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:18:03,213 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:18:03,214 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:18:03,214 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:18:03,214 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:18:03,214 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:18:03,214 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:18:03,214 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 15:18:03,214 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:18:03,215 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:18:03,215 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:18:03,215 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_70b060aa-2614-4082-9425-66c5a3d44c21/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 -> a81eebddb84f05353da2fe57e839b2276721ce6a [2018-11-18 15:18:03,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:18:03,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:18:03,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:18:03,272 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:18:03,272 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:18:03,273 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/../../sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-18 15:18:03,313 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data/e0937f085/216d6121fe8e40bab42ac2d84b9241a4/FLAGee24084d9 [2018-11-18 15:18:03,654 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:18:03,654 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/sv-benchmarks/c/loops/ludcmp_false-unreach-call.i [2018-11-18 15:18:03,658 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data/e0937f085/216d6121fe8e40bab42ac2d84b9241a4/FLAGee24084d9 [2018-11-18 15:18:03,667 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/data/e0937f085/216d6121fe8e40bab42ac2d84b9241a4 [2018-11-18 15:18:03,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:18:03,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:18:03,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:03,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:18:03,674 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:18:03,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa78336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03, skipping insertion in model container [2018-11-18 15:18:03,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:18:03,698 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:18:03,856 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:03,862 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:18:03,897 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:18:03,917 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:18:03,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03 WrapperNode [2018-11-18 15:18:03,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:18:03,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:03,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:18:03,918 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:18:03,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:18:03,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:18:03,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:18:03,941 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:18:03,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... [2018-11-18 15:18:03,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:18:03,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:18:03,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:18:03,980 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:18:03,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/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 15:18:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-11-18 15:18:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-11-18 15:18:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 15:18:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:18:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:18:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-11-18 15:18:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-11-18 15:18:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:18:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 15:18:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:18:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:18:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:18:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:18:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 15:18:04,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 15:18:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:18:06,892 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:09,118 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:10,439 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:10,453 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:12,228 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:13,715 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:13,765 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:13,925 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:13,980 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:18:14,196 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:18:14,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:14 BoogieIcfgContainer [2018-11-18 15:18:14,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:18:14,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:18:14,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:18:14,199 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:18:14,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:18:03" (1/3) ... [2018-11-18 15:18:14,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e286d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:18:14, skipping insertion in model container [2018-11-18 15:18:14,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:18:03" (2/3) ... [2018-11-18 15:18:14,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e286d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:18:14, skipping insertion in model container [2018-11-18 15:18:14,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:18:14" (3/3) ... [2018-11-18 15:18:14,202 INFO L112 eAbstractionObserver]: Analyzing ICFG ludcmp_false-unreach-call.i [2018-11-18 15:18:14,209 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:18:14,215 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:18:14,226 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:18:14,244 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:18:14,244 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:18:14,245 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:18:14,245 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:18:14,245 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:18:14,245 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:18:14,245 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:18:14,245 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:18:14,245 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:18:14,256 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-11-18 15:18:14,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 15:18:14,259 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:14,260 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:14,261 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:14,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:14,264 INFO L82 PathProgramCache]: Analyzing trace with hash 765892228, now seen corresponding path program 1 times [2018-11-18 15:18:14,267 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:18:14,267 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 15:18:14,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:14,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:14,326 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 15:18:14,326 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:18:14,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:14,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:18:14,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:18:14,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:18:14,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:18:14,346 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-11-18 15:18:14,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:14,366 INFO L93 Difference]: Finished difference Result 144 states and 200 transitions. [2018-11-18 15:18:14,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:18:14,367 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-11-18 15:18:14,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:14,374 INFO L225 Difference]: With dead ends: 144 [2018-11-18 15:18:14,374 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 15:18:14,377 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 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 15:18:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 15:18:14,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-18 15:18:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 15:18:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-18 15:18:14,407 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 13 [2018-11-18 15:18:14,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:14,407 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-18 15:18:14,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:18:14,408 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 15:18:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 15:18:14,408 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:14,408 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:14,409 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:14,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:14,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1771472002, now seen corresponding path program 1 times [2018-11-18 15:18:14,409 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:18:14,410 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 15:18:14,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:14,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:14,473 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 15:18:14,474 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:18:14,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:14,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 15:18:14,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:18:14,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:18:14,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:18:14,488 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 4 states. [2018-11-18 15:18:14,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:14,975 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-11-18 15:18:14,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:18:14,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-18 15:18:14,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:14,976 INFO L225 Difference]: With dead ends: 43 [2018-11-18 15:18:14,976 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 15:18:14,977 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 15:18:14,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 15:18:14,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-11-18 15:18:14,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-18 15:18:14,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-11-18 15:18:14,980 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2018-11-18 15:18:14,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:14,980 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-11-18 15:18:14,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:18:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-18 15:18:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:18:14,981 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:14,981 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 15:18:14,981 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:14,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:14,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1929070916, now seen corresponding path program 1 times [2018-11-18 15:18:14,982 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:18:14,982 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 15:18:14,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:15,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:15,187 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 15:18:15,187 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:15,239 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 15:18:15,252 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:15,252 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/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 15:18:15,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:15,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:15,346 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 15:18:15,346 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:15,354 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 15:18:15,373 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:15,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2018-11-18 15:18:15,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:18:15,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:18:15,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:18:15,374 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 8 states. [2018-11-18 15:18:16,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:16,250 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2018-11-18 15:18:16,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:18:16,251 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2018-11-18 15:18:16,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:16,252 INFO L225 Difference]: With dead ends: 57 [2018-11-18 15:18:16,252 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 15:18:16,252 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:18:16,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 15:18:16,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 15:18:16,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 15:18:16,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-11-18 15:18:16,257 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 19 [2018-11-18 15:18:16,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:16,257 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-11-18 15:18:16,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:18:16,258 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-11-18 15:18:16,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 15:18:16,258 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:16,259 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:16,259 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:16,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:16,259 INFO L82 PathProgramCache]: Analyzing trace with hash 393927938, now seen corresponding path program 2 times [2018-11-18 15:18:16,259 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:18:16,260 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 15:18:16,263 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 15:18:16,838 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:18:16,838 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:16,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 15:18:16,947 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 15:18:17,007 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:17,007 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/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 15:18:17,013 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 15:18:17,113 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:18:17,113 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:17,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:17,140 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 15:18:17,140 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:17,150 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-11-18 15:18:17,184 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:17,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5] total 8 [2018-11-18 15:18:17,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:18:17,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:18:17,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:18:17,185 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 8 states. [2018-11-18 15:18:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:18,844 INFO L93 Difference]: Finished difference Result 147 states and 177 transitions. [2018-11-18 15:18:18,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:18:18,845 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-18 15:18:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:18,847 INFO L225 Difference]: With dead ends: 147 [2018-11-18 15:18:18,847 INFO L226 Difference]: Without dead ends: 114 [2018-11-18 15:18:18,847 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:18:18,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-18 15:18:18,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 97. [2018-11-18 15:18:18,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-11-18 15:18:18,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2018-11-18 15:18:18,861 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 34 [2018-11-18 15:18:18,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:18,861 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2018-11-18 15:18:18,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:18:18,861 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2018-11-18 15:18:18,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 15:18:18,863 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:18,863 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:18,863 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:18,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:18,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1626074684, now seen corresponding path program 1 times [2018-11-18 15:18:18,864 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:18:18,864 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 15:18:18,867 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:18:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:19,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:18:19,318 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:18:19,416 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:19,416 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/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 15:18:19,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:18:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:18:19,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:18:19,666 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:19,677 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:18:19,706 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:19,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 14 [2018-11-18 15:18:19,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 15:18:19,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 15:18:19,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-11-18 15:18:19,707 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand 14 states. [2018-11-18 15:18:21,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:21,797 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2018-11-18 15:18:21,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:18:21,805 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 34 [2018-11-18 15:18:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:21,805 INFO L225 Difference]: With dead ends: 183 [2018-11-18 15:18:21,805 INFO L226 Difference]: Without dead ends: 131 [2018-11-18 15:18:21,806 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2018-11-18 15:18:21,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-11-18 15:18:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-11-18 15:18:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-11-18 15:18:21,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 145 transitions. [2018-11-18 15:18:21,814 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 145 transitions. Word has length 34 [2018-11-18 15:18:21,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:21,814 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 145 transitions. [2018-11-18 15:18:21,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 15:18:21,814 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 145 transitions. [2018-11-18 15:18:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 15:18:21,815 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:21,815 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:21,815 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:21,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:21,815 INFO L82 PathProgramCache]: Analyzing trace with hash -758179450, now seen corresponding path program 2 times [2018-11-18 15:18:21,815 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:18:21,815 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-18 15:18:21,819 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 15:18:22,401 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:18:22,401 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:22,458 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 41 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 15:18:22,501 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:22,572 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 41 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 15:18:22,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:18:22,587 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/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 15:18:22,595 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 15:18:22,925 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:18:22,925 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:22,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 41 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 15:18:22,965 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:18:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 41 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 15:18:23,032 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:18:23,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 14 [2018-11-18 15:18:23,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 15:18:23,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 15:18:23,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-11-18 15:18:23,033 INFO L87 Difference]: Start difference. First operand 131 states and 145 transitions. Second operand 14 states. [2018-11-18 15:18:27,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:27,399 INFO L93 Difference]: Finished difference Result 496 states and 585 transitions. [2018-11-18 15:18:27,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-11-18 15:18:27,400 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2018-11-18 15:18:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:27,402 INFO L225 Difference]: With dead ends: 496 [2018-11-18 15:18:27,402 INFO L226 Difference]: Without dead ends: 400 [2018-11-18 15:18:27,403 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=460, Invalid=1100, Unknown=0, NotChecked=0, Total=1560 [2018-11-18 15:18:27,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2018-11-18 15:18:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 237. [2018-11-18 15:18:27,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-11-18 15:18:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 264 transitions. [2018-11-18 15:18:27,425 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 264 transitions. Word has length 44 [2018-11-18 15:18:27,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:27,425 INFO L480 AbstractCegarLoop]: Abstraction has 237 states and 264 transitions. [2018-11-18 15:18:27,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 15:18:27,425 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 264 transitions. [2018-11-18 15:18:27,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 15:18:27,426 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:18:27,426 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:18:27,426 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:18:27,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:18:27,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1769296700, now seen corresponding path program 3 times [2018-11-18 15:18:27,427 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:18:27,427 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70b060aa-2614-4082-9425-66c5a3d44c21/bin-2019/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-11-18 15:18:27,431 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 15:18:27,718 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-11-18 15:18:27,718 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:18:27,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:18:27,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2018-11-18 15:18:27,768 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:27,780 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2018-11-18 15:18:27,819 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:27,819 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:18:27,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2018-11-18 15:18:27,821 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 15:18:27,841 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:27,843 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:27,844 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:18:27,845 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2018-11-18 15:18:27,845 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 15:18:27,855 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:18:27,861 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:18:27,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 18 [2018-11-18 15:18:27,874 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:18:27,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 24 [2018-11-18 15:18:27,878 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:18:27,878 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:18:27,879 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 38 [2018-11-18 15:18:27,879 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-18 15:18:27,889 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:18:27,896 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:18:27,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 15:18:27,908 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:41, output treesize:32 [2018-11-18 15:18:29,929 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 21 [2018-11-18 15:18:31,956 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 24 [2018-11-18 15:18:33,979 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-18 15:18:33,993 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-18 15:18:33,993 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:18:34,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:18:34,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:18:34,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:18:34,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:18:34,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:18:34,003 INFO L87 Difference]: Start difference. First operand 237 states and 264 transitions. Second operand 5 states. [2018-11-18 15:18:34,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:18:34,032 INFO L93 Difference]: Finished difference Result 237 states and 264 transitions. [2018-11-18 15:18:34,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:18:34,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-11-18 15:18:34,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:18:34,033 INFO L225 Difference]: With dead ends: 237 [2018-11-18 15:18:34,033 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:18:34,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:18:34,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:18:34,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:18:34,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:18:34,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:18:34,035 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-11-18 15:18:34,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:18:34,035 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:18:34,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:18:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:18:34,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:18:34,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:18:38,114 WARN L180 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 43 [2018-11-18 15:18:40,125 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 21 [2018-11-18 15:18:44,163 WARN L180 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 34 [2018-11-18 15:18:48,200 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 41 [2018-11-18 15:18:50,214 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 21 [2018-11-18 15:18:50,216 INFO L425 ceAbstractionStarter]: For program point L44-1(lines 44 62) no Hoare annotation was computed. [2018-11-18 15:18:50,216 INFO L425 ceAbstractionStarter]: For program point L44-3(lines 44 62) no Hoare annotation was computed. [2018-11-18 15:18:50,216 INFO L428 ceAbstractionStarter]: At program point L44-4(lines 44 62) the Hoare annotation is: true [2018-11-18 15:18:50,216 INFO L425 ceAbstractionStarter]: For program point L44-5(lines 44 62) no Hoare annotation was computed. [2018-11-18 15:18:50,216 INFO L425 ceAbstractionStarter]: For program point ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-11-18 15:18:50,216 INFO L428 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-11-18 15:18:50,216 INFO L425 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-11-18 15:18:50,216 INFO L428 ceAbstractionStarter]: At program point ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point L55-1(lines 55 61) no Hoare annotation was computed. [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point L55-3(lines 55 61) no Hoare annotation was computed. [2018-11-18 15:18:50,217 INFO L428 ceAbstractionStarter]: At program point L55-4(lines 55 61) the Hoare annotation is: true [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point L47-1(lines 47 54) no Hoare annotation was computed. [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point L47-3(lines 47 54) no Hoare annotation was computed. [2018-11-18 15:18:50,217 INFO L428 ceAbstractionStarter]: At program point L47-4(lines 47 54) the Hoare annotation is: true [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point L47-5(lines 47 54) no Hoare annotation was computed. [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 72 78) no Hoare annotation was computed. [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point L72-3(lines 72 78) no Hoare annotation was computed. [2018-11-18 15:18:50,217 INFO L428 ceAbstractionStarter]: At program point L72-4(lines 72 78) the Hoare annotation is: true [2018-11-18 15:18:50,217 INFO L425 ceAbstractionStarter]: For program point L72-5(lines 72 78) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L64-1(lines 64 70) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L64-3(lines 64 70) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L428 ceAbstractionStarter]: At program point L64-4(lines 64 70) the Hoare annotation is: true [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L64-5(lines 64 70) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 59) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L58-3(lines 58 59) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L428 ceAbstractionStarter]: At program point L58-4(lines 58 59) the Hoare annotation is: true [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L58-5(lines 58 59) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 75 76) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L75-3(lines 75 76) no Hoare annotation was computed. [2018-11-18 15:18:50,218 INFO L428 ceAbstractionStarter]: At program point L75-4(lines 75 76) the Hoare annotation is: true [2018-11-18 15:18:50,218 INFO L425 ceAbstractionStarter]: For program point L75-5(lines 75 76) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point L67-1(lines 67 68) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point L67-3(lines 67 68) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L428 ceAbstractionStarter]: At program point L67-4(lines 67 68) the Hoare annotation is: true [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point L67-5(lines 67 68) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 51 52) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point L51-3(lines 51 52) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L428 ceAbstractionStarter]: At program point L51-4(lines 51 52) the Hoare annotation is: true [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-11-18 15:18:50,219 INFO L425 ceAbstractionStarter]: For program point fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-11-18 15:18:50,220 INFO L428 ceAbstractionStarter]: At program point fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-11-18 15:18:50,220 INFO L425 ceAbstractionStarter]: For program point fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-11-18 15:18:50,220 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:18:50,220 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (exists ((|~#x~0.base| (_ BitVec 32)) (|~#b~0.base| (_ BitVec 32))) (and (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |#memory_int| |~#x~0.base|)) (not (= |~#x~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#x~0.base|)) (not (= |~#b~0.base| |~#a~0.base|)) (= (select |#memory_int| |~#b~0.base|) (select |#memory_int| |~#a~0.base|)))) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |#memory_int| |~#a~0.base|))) [2018-11-18 15:18:50,220 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:18:50,220 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:18:50,220 INFO L425 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-18 15:18:50,220 INFO L425 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2018-11-18 15:18:50,220 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-11-18 15:18:50,220 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 34) no Hoare annotation was computed. [2018-11-18 15:18:50,220 INFO L425 ceAbstractionStarter]: For program point L23-3(lines 23 34) no Hoare annotation was computed. [2018-11-18 15:18:50,221 INFO L421 ceAbstractionStarter]: At program point L23-4(lines 23 34) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000))) (or (forall ((|~#x~0.base| (_ BitVec 32)) (|~#b~0.base| (_ BitVec 32))) (or (not (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |old(#memory_int)| |~#x~0.base|))) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#x~0.base|) (not (= (select |old(#memory_int)| |~#a~0.base|) (select |old(#memory_int)| |~#b~0.base|))) (= |~#x~0.base| |~#a~0.base|))) (and (exists ((|~#x~0.base| (_ BitVec 32)) (|~#b~0.base| (_ BitVec 32))) (and (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |#memory_int| |~#x~0.base|)) (not (= |~#x~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#x~0.base|)) (not (= |~#b~0.base| |~#a~0.base|)) (= (select |#memory_int| |~#b~0.base|) (select |#memory_int| |~#a~0.base|)))) (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32)) (= main_~i~0 (_ bv0 32)) (= .cse0 (select |#memory_int| |~#a~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#a~0.base|))))) [2018-11-18 15:18:50,221 INFO L428 ceAbstractionStarter]: At program point L23-5(lines 23 34) the Hoare annotation is: true [2018-11-18 15:18:50,221 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-11-18 15:18:50,221 INFO L425 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-11-18 15:18:50,221 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 18 38) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000))) (or (forall ((|~#x~0.base| (_ BitVec 32)) (|~#b~0.base| (_ BitVec 32))) (or (not (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |old(#memory_int)| |~#x~0.base|))) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#x~0.base|) (not (= (select |old(#memory_int)| |~#a~0.base|) (select |old(#memory_int)| |~#b~0.base|))) (= |~#x~0.base| |~#a~0.base|))) (and (exists ((|~#x~0.base| (_ BitVec 32)) (|~#b~0.base| (_ BitVec 32))) (and (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |#memory_int| |~#x~0.base|)) (not (= |~#x~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#x~0.base|)) (not (= |~#b~0.base| |~#a~0.base|)) (= (select |#memory_int| |~#b~0.base|) (select |#memory_int| |~#a~0.base|)))) (= .cse0 (select |#memory_int| |~#a~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#a~0.base|))))) [2018-11-18 15:18:50,221 INFO L425 ceAbstractionStarter]: For program point L26-1(lines 26 31) no Hoare annotation was computed. [2018-11-18 15:18:50,221 INFO L425 ceAbstractionStarter]: For program point L26-3(lines 26 31) no Hoare annotation was computed. [2018-11-18 15:18:50,221 INFO L421 ceAbstractionStarter]: At program point L26-4(lines 26 31) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000))) (or (and (= main_~j~0 (_ bv0 32)) (exists ((|~#x~0.base| (_ BitVec 32)) (|~#b~0.base| (_ BitVec 32))) (and (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |#memory_int| |~#x~0.base|)) (not (= |~#x~0.base| |~#a~0.base|)) (not (= |~#b~0.base| |~#x~0.base|)) (not (= |~#b~0.base| |~#a~0.base|)) (= (select |#memory_int| |~#b~0.base|) (select |#memory_int| |~#a~0.base|)))) (= (bvadd main_~n~0 (_ bv4294967291 32)) (_ bv0 32)) (= main_~i~0 (_ bv0 32)) (= .cse0 (select |#memory_int| |~#a~0.base|))) (forall ((|~#x~0.base| (_ BitVec 32)) (|~#b~0.base| (_ BitVec 32))) (or (not (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |old(#memory_int)| |~#x~0.base|))) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#x~0.base|) (not (= (select |old(#memory_int)| |~#a~0.base|) (select |old(#memory_int)| |~#b~0.base|))) (= |~#x~0.base| |~#a~0.base|))) (not (= .cse0 (select |old(#memory_int)| |~#a~0.base|))))) [2018-11-18 15:18:50,221 INFO L421 ceAbstractionStarter]: At program point L26-5(lines 26 31) the Hoare annotation is: (or (forall ((|~#x~0.base| (_ BitVec 32)) (|~#b~0.base| (_ BitVec 32))) (or (not (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |old(#memory_int)| |~#x~0.base|))) (= |~#b~0.base| |~#a~0.base|) (= |~#b~0.base| |~#x~0.base|) (not (= (select |old(#memory_int)| |~#a~0.base|) (select |old(#memory_int)| |~#b~0.base|))) (= |~#x~0.base| |~#a~0.base|))) (not (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |old(#memory_int)| |~#a~0.base|)))) [2018-11-18 15:18:50,221 INFO L425 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-11-18 15:18:50,222 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-18 15:18:50,222 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-18 15:18:50,222 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-18 15:18:50,222 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-18 15:18:50,222 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-18 15:18:50,222 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-18 15:18:50,227 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:537) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) 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 15:18:50,229 INFO L168 Benchmark]: Toolchain (without parser) took 46559.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 949.2 MB in the beginning and 975.5 MB in the end (delta: -26.3 MB). Peak memory consumption was 191.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:50,229 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 15:18:50,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.82 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:50,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.65 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:18:50,230 INFO L168 Benchmark]: Boogie Preprocessor took 38.80 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:50,231 INFO L168 Benchmark]: RCFGBuilder took 10216.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:50,231 INFO L168 Benchmark]: TraceAbstraction took 36031.27 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 975.5 MB in the end (delta: 137.8 MB). Peak memory consumption was 190.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:18:50,234 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 246.82 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.65 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.80 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10216.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36031.27 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 975.5 MB in the end (delta: 137.8 MB). Peak memory consumption was 190.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...