./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c --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_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/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 b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 ................................................................................................................................................................................................................................................................................................................................... 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_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/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 b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_3 term size 41 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:27:32,829 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:27:32,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:27:32,836 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:27:32,837 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:27:32,837 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:27:32,838 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:27:32,839 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:27:32,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:27:32,841 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:27:32,842 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:27:32,842 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:27:32,843 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:27:32,843 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:27:32,844 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:27:32,845 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:27:32,845 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:27:32,847 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:27:32,848 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:27:32,849 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:27:32,850 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:27:32,851 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:27:32,852 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:27:32,853 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:27:32,853 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:27:32,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:27:32,854 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:27:32,855 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:27:32,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:27:32,856 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:27:32,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:27:32,857 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:27:32,857 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:27:32,857 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:27:32,858 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:27:32,858 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:27:32,859 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:27:32,869 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:27:32,869 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:27:32,869 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:27:32,870 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:27:32,870 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:27:32,870 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:27:32,870 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:27:32,870 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:27:32,870 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:27:32,871 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:27:32,871 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:27:32,871 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:27:32,871 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:27:32,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:27:32,872 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:27:32,872 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:27:32,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:27:32,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:27:32,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:27:32,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:27:32,873 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:27:32,873 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:27:32,873 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:27:32,873 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:27:32,873 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:27:32,873 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:27:32,874 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:27:32,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:27:32,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:27:32,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:27:32,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:27:32,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:27:32,875 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:27:32,875 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:27:32,875 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:27:32,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:27:32,875 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:27:32,875 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_81302ee7-9486-4e93-bb50-a514d335141a/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 -> b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 [2018-11-18 15:27:32,899 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:27:32,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:27:32,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:27:32,912 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:27:32,913 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:27:32,913 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-11-18 15:27:32,957 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data/37fa68751/58c05cb339b442c190f5b2148966465c/FLAGeb90b065a [2018-11-18 15:27:33,360 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:27:33,360 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-11-18 15:27:33,364 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data/37fa68751/58c05cb339b442c190f5b2148966465c/FLAGeb90b065a [2018-11-18 15:27:33,372 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data/37fa68751/58c05cb339b442c190f5b2148966465c [2018-11-18 15:27:33,374 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:27:33,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:27:33,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:27:33,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:27:33,377 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:27:33,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74696867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33, skipping insertion in model container [2018-11-18 15:27:33,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:27:33,400 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:27:33,517 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:27:33,519 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:27:33,538 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:27:33,552 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:27:33,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33 WrapperNode [2018-11-18 15:27:33,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:27:33,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:27:33,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:27:33,553 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:27:33,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:27:33,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:27:33,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:27:33,571 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:27:33,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... [2018-11-18 15:27:33,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:27:33,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:27:33,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:27:33,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:27:33,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/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 15:27:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 15:27:33,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 15:27:33,675 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:27:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:27:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 15:27:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:27:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-18 15:27:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-18 15:27:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:27:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:27:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 15:27:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:27:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:27:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:27:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:27:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:27:33,867 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:27:33,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:27:33 BoogieIcfgContainer [2018-11-18 15:27:33,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:27:33,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:27:33,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:27:33,870 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:27:33,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:27:33" (1/3) ... [2018-11-18 15:27:33,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae9c3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:27:33, skipping insertion in model container [2018-11-18 15:27:33,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:33" (2/3) ... [2018-11-18 15:27:33,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae9c3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:27:33, skipping insertion in model container [2018-11-18 15:27:33,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:27:33" (3/3) ... [2018-11-18 15:27:33,873 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a_true-unreach-call.c [2018-11-18 15:27:33,879 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:27:33,884 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:27:33,893 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:27:33,912 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:27:33,912 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:27:33,912 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:27:33,912 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:27:33,913 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:27:33,913 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:27:33,913 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:27:33,913 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:27:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-18 15:27:33,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 15:27:33,927 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:27:33,927 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:27:33,929 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:27:33,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:27:33,933 INFO L82 PathProgramCache]: Analyzing trace with hash 242000722, now seen corresponding path program 1 times [2018-11-18 15:27:33,935 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:27:33,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:27:33,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:27:33,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:27:33,967 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:27:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:34,029 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 15:27:34,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:27:34,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:27:34,031 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:27:34,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:27:34,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:27:34,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:27:34,043 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-11-18 15:27:34,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:27:34,058 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2018-11-18 15:27:34,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:27:34,059 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 15:27:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:27:34,066 INFO L225 Difference]: With dead ends: 54 [2018-11-18 15:27:34,066 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 15:27:34,069 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 15:27:34,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 15:27:34,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-18 15:27:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 15:27:34,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-18 15:27:34,091 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2018-11-18 15:27:34,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:27:34,092 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-18 15:27:34,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:27:34,092 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-18 15:27:34,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 15:27:34,092 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:27:34,092 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:27:34,093 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:27:34,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:27:34,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1368887266, now seen corresponding path program 1 times [2018-11-18 15:27:34,093 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:27:34,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:27:34,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:27:34,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:27:34,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:27:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:27:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:27:34,185 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 15:27:34,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:27:34 BoogieIcfgContainer [2018-11-18 15:27:34,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:27:34,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:27:34,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:27:34,203 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:27:34,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:27:33" (3/4) ... [2018-11-18 15:27:34,206 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 15:27:34,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:27:34,207 INFO L168 Benchmark]: Toolchain (without parser) took 832.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:34,208 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:27:34,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.09 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 946.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:34,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.45 ms. Allocated memory is still 1.0 GB. Free memory is still 946.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:27:34,209 INFO L168 Benchmark]: Boogie Preprocessor took 64.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 946.6 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:34,209 INFO L168 Benchmark]: RCFGBuilder took 232.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:34,210 INFO L168 Benchmark]: TraceAbstraction took 334.70 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:34,210 INFO L168 Benchmark]: Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:27:34,213 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.09 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 946.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.45 ms. Allocated memory is still 1.0 GB. Free memory is still 946.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.2 MB). Free memory was 946.6 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 232.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 334.70 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L68] double x = 1.0 / 0.0; [L69] CALL, EXPR fabs_double(x) VAL [\old(x)=10737418244] [L45] __uint32_t high; VAL [\old(x)=10737418244, x=10737418244] [L47] FCALL ieee_double_shape_type gh_u; [L48] FCALL gh_u.value = (x) [L49] EXPR, FCALL gh_u.parts.msw [L49] (high) = gh_u.parts.msw [L50] COND FALSE !(0) VAL [\old(x)=10737418244, high=2147483658, x=10737418244] [L52] FCALL ieee_double_shape_type sh_u; [L53] FCALL sh_u.value = (x) [L54] FCALL sh_u.parts.msw = (high & 0x7fffffff) [L55] EXPR, FCALL sh_u.value [L55] (x) = sh_u.value [L56] COND FALSE !(0) VAL [\old(x)=10737418244, high=2147483658, x=10737418244] [L57] RET return x; VAL [\old(x)=10737418244, \result=10737418244, high=2147483658, x=10737418244] [L69] EXPR fabs_double(x) VAL [fabs_double(x)=10737418244, x=10737418244] [L69] double res = fabs_double(x); [L72] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418244] [L31] __int32_t hx, lx; VAL [\old(x)=10737418244, x=10737418244] [L33] FCALL ieee_double_shape_type ew_u; [L34] FCALL ew_u.value = (x) [L35] EXPR, FCALL ew_u.parts.msw [L35] (hx) = ew_u.parts.msw [L36] EXPR, FCALL ew_u.parts.lsw [L36] (lx) = ew_u.parts.lsw [L37] COND FALSE !(0) VAL [\old(x)=10737418244, hx=-2147483648, lx=-2147483648, x=10737418244] [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418244, \result=0, hx=2146435073, lx=-2147483648, x=10737418244] [L72] EXPR isinf_double(res) VAL [isinf_double(res)=0, res=10737418244, x=10737418244] [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() VAL [res=10737418244, x=10737418244] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 15:27:35,618 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:27:35,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:27:35,626 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:27:35,626 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:27:35,627 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:27:35,628 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:27:35,629 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:27:35,630 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:27:35,630 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:27:35,631 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:27:35,631 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:27:35,632 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:27:35,632 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:27:35,633 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:27:35,634 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:27:35,634 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:27:35,636 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:27:35,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:27:35,638 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:27:35,639 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:27:35,640 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:27:35,642 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:27:35,642 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:27:35,642 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:27:35,643 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:27:35,644 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:27:35,644 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:27:35,645 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:27:35,646 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:27:35,646 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:27:35,647 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:27:35,647 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:27:35,647 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:27:35,647 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:27:35,648 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:27:35,648 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 15:27:35,659 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:27:35,659 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:27:35,660 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:27:35,660 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:27:35,660 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:27:35,661 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:27:35,661 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:27:35,661 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:27:35,661 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:27:35,661 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:27:35,661 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:27:35,662 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:27:35,662 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:27:35,663 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:27:35,663 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:27:35,663 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:27:35,663 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:27:35,663 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:27:35,663 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:27:35,664 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:27:35,664 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:27:35,664 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:27:35,664 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:27:35,664 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:27:35,664 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:27:35,664 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:27:35,664 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:27:35,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:27:35,664 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:27:35,665 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:27:35,665 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:27:35,665 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 15:27:35,665 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:27:35,665 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:27:35,665 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:27:35,665 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_81302ee7-9486-4e93-bb50-a514d335141a/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 -> b885e206564f4e9bb7a421e0f9e82e87cbb5e4d9 [2018-11-18 15:27:35,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:27:35,706 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:27:35,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:27:35,710 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:27:35,710 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:27:35,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-11-18 15:27:35,757 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data/5c0993ad0/2bc611285d084536ab946f6149a50d0b/FLAG42f6c349d [2018-11-18 15:27:36,064 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:27:36,065 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/sv-benchmarks/c/float-newlib/double_req_bl_1012a_true-unreach-call.c [2018-11-18 15:27:36,068 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data/5c0993ad0/2bc611285d084536ab946f6149a50d0b/FLAG42f6c349d [2018-11-18 15:27:36,077 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/bin-2019/utaipan/data/5c0993ad0/2bc611285d084536ab946f6149a50d0b [2018-11-18 15:27:36,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:27:36,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:27:36,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:27:36,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:27:36,083 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:27:36,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e13833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36, skipping insertion in model container [2018-11-18 15:27:36,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:27:36,111 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:27:36,247 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:27:36,251 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:27:36,273 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:27:36,295 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:27:36,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36 WrapperNode [2018-11-18 15:27:36,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:27:36,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:27:36,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:27:36,296 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:27:36,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:27:36,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:27:36,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:27:36,316 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:27:36,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... [2018-11-18 15:27:36,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:27:36,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:27:36,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:27:36,341 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:27:36,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/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 15:27:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 15:27:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 15:27:36,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 15:27:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 15:27:36,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:27:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:27:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-18 15:27:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-18 15:27:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:27:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:27:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:27:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 15:27:36,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:27:36,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:27:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 15:27:36,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:27:36,541 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:27:36,557 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:27:36,579 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:27:36,608 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:27:36,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:27:36 BoogieIcfgContainer [2018-11-18 15:27:36,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:27:36,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:27:36,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:27:36,611 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:27:36,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:27:36" (1/3) ... [2018-11-18 15:27:36,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530c08a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:27:36, skipping insertion in model container [2018-11-18 15:27:36,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:27:36" (2/3) ... [2018-11-18 15:27:36,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@530c08a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:27:36, skipping insertion in model container [2018-11-18 15:27:36,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:27:36" (3/3) ... [2018-11-18 15:27:36,613 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a_true-unreach-call.c [2018-11-18 15:27:36,619 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:27:36,624 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:27:36,633 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:27:36,652 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:27:36,652 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:27:36,653 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:27:36,653 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:27:36,653 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:27:36,653 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:27:36,653 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:27:36,653 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:27:36,653 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:27:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-18 15:27:36,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 15:27:36,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:27:36,667 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:27:36,668 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:27:36,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:27:36,672 INFO L82 PathProgramCache]: Analyzing trace with hash 634886120, now seen corresponding path program 1 times [2018-11-18 15:27:36,674 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:27:36,674 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/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 15:27:36,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:27:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:36,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:27:36,740 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 15:27:36,740 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:27:36,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:27:36,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:27:36,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:27:36,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:27:36,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:27:36,764 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-11-18 15:27:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:27:36,778 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2018-11-18 15:27:36,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:27:36,779 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 15:27:36,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:27:36,784 INFO L225 Difference]: With dead ends: 52 [2018-11-18 15:27:36,784 INFO L226 Difference]: Without dead ends: 26 [2018-11-18 15:27:36,787 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 15:27:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-18 15:27:36,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-18 15:27:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 15:27:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-11-18 15:27:36,811 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2018-11-18 15:27:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:27:36,811 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-11-18 15:27:36,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:27:36,811 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-11-18 15:27:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 15:27:36,812 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:27:36,812 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:27:36,812 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:27:36,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:27:36,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1805321388, now seen corresponding path program 1 times [2018-11-18 15:27:36,813 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:27:36,813 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_81302ee7-9486-4e93-bb50-a514d335141a/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 15:27:36,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:27:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:27:36,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:27:37,078 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,079 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 82 [2018-11-18 15:27:37,129 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 53 [2018-11-18 15:27:37,130 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 15:27:37,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 53 treesize of output 43 [2018-11-18 15:27:37,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 27 [2018-11-18 15:27:37,168 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 15:27:37,174 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:27:37,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:27:37,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 15:27:37,207 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:100, output treesize:52 [2018-11-18 15:27:37,453 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,454 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,455 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,455 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,456 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,457 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,458 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 127 [2018-11-18 15:27:37,589 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2018-11-18 15:27:37,604 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,605 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:27:37,842 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-11-18 15:27:37,842 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_3 term size 41 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 15:27:37,845 INFO L168 Benchmark]: Toolchain (without parser) took 1765.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 949.2 MB in the beginning and 1.0 GB in the end (delta: -93.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:37,845 INFO L168 Benchmark]: CDTParser took 0.15 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 15:27:37,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.65 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 931.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:37,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.54 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:27:37,846 INFO L168 Benchmark]: Boogie Preprocessor took 24.20 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:27:37,847 INFO L168 Benchmark]: RCFGBuilder took 268.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:37,847 INFO L168 Benchmark]: TraceAbstraction took 1235.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.9 MB). Peak memory consumption was 84.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:27:37,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 215.65 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 931.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.54 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.20 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 268.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1235.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 84.9 MB). Peak memory consumption was 84.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_3 term size 41 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_3 term size 41: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...