./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0981_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_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/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 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 ............................................................................................................................................................................................................................................................................................................................................................... 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_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/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 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 ............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_1 term size 36 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:55:04,895 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:55:04,897 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:55:04,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:55:04,906 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:55:04,907 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:55:04,908 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:55:04,909 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:55:04,910 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:55:04,911 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:55:04,911 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:55:04,912 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:55:04,912 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:55:04,913 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:55:04,914 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:55:04,914 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:55:04,915 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:55:04,916 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:55:04,918 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:55:04,919 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:55:04,920 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:55:04,921 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:55:04,923 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:55:04,923 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:55:04,923 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:55:04,924 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:55:04,925 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:55:04,925 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:55:04,926 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:55:04,927 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:55:04,927 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:55:04,928 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:55:04,928 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:55:04,928 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:55:04,929 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:55:04,929 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:55:04,930 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:55:04,941 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:55:04,941 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:55:04,942 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:55:04,942 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:55:04,942 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:55:04,942 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:55:04,942 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:55:04,943 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:55:04,943 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:55:04,943 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:55:04,943 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:55:04,943 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:55:04,943 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:55:04,944 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:55:04,944 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:55:04,944 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:55:04,945 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:55:04,945 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:55:04,945 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:55:04,945 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:55:04,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:55:04,945 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:55:04,945 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:55:04,946 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:55:04,946 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:55:04,946 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:55:04,946 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:55:04,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:55:04,946 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:55:04,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:55:04,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:55:04,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:55:04,947 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:55:04,947 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:55:04,947 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:55:04,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:55:04,948 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:55:04,948 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_89aeb11b-6436-4d06-8963-a75ea65f0dd6/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 -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2018-11-18 11:55:04,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:55:04,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:55:04,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:55:04,991 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:55:04,992 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:55:04,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0981_true-unreach-call.c [2018-11-18 11:55:05,034 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data/6bd09add7/dbb9a4f0d19f4ff0ae09655439c2a971/FLAG1e19974f8 [2018-11-18 11:55:05,392 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:55:05,392 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/sv-benchmarks/c/float-newlib/double_req_bl_0981_true-unreach-call.c [2018-11-18 11:55:05,398 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data/6bd09add7/dbb9a4f0d19f4ff0ae09655439c2a971/FLAG1e19974f8 [2018-11-18 11:55:05,799 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data/6bd09add7/dbb9a4f0d19f4ff0ae09655439c2a971 [2018-11-18 11:55:05,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:55:05,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:55:05,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:55:05,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:55:05,807 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:55:05,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:55:05" (1/1) ... [2018-11-18 11:55:05,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e6ce68e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:05, skipping insertion in model container [2018-11-18 11:55:05,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:55:05" (1/1) ... [2018-11-18 11:55:05,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:55:05,836 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:55:05,977 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:55:05,979 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:55:06,015 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:55:06,030 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:55:06,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06 WrapperNode [2018-11-18 11:55:06,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:55:06,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:55:06,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:55:06,031 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:55:06,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:55:06,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:55:06,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:55:06,056 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:55:06,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... [2018-11-18 11:55:06,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:55:06,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:55:06,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:55:06,149 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:55:06,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:55:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10 [2018-11-18 11:55:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10 [2018-11-18 11:55:06,206 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 11:55:06,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 11:55:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 11:55:06,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 11:55:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:55:06,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:55:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 11:55:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:55:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:55:06,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:55:06,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 11:55:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:55:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:55:06,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:55:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:55:06,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:55:06,748 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:55:06,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:55:06 BoogieIcfgContainer [2018-11-18 11:55:06,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:55:06,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:55:06,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:55:06,751 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:55:06,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:55:05" (1/3) ... [2018-11-18 11:55:06,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9fcd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:55:06, skipping insertion in model container [2018-11-18 11:55:06,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:06" (2/3) ... [2018-11-18 11:55:06,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9fcd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:55:06, skipping insertion in model container [2018-11-18 11:55:06,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:55:06" (3/3) ... [2018-11-18 11:55:06,754 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981_true-unreach-call.c [2018-11-18 11:55:06,760 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:55:06,766 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:55:06,779 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:55:06,806 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:55:06,806 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:55:06,806 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:55:06,806 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:55:06,806 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:55:06,806 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:55:06,807 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:55:06,807 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:55:06,820 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-11-18 11:55:06,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 11:55:06,824 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:55:06,825 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] [2018-11-18 11:55:06,827 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:55:06,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:55:06,832 INFO L82 PathProgramCache]: Analyzing trace with hash -368346391, now seen corresponding path program 1 times [2018-11-18 11:55:06,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:55:06,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:55:06,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:55:06,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:55:06,869 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:55:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:55:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:55:06,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:55:06,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:55:06,966 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:55:06,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:55:06,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:55:06,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:55:06,982 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2018-11-18 11:55:07,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:55:07,002 INFO L93 Difference]: Finished difference Result 114 states and 174 transitions. [2018-11-18 11:55:07,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:55:07,003 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 11:55:07,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:55:07,010 INFO L225 Difference]: With dead ends: 114 [2018-11-18 11:55:07,011 INFO L226 Difference]: Without dead ends: 57 [2018-11-18 11:55:07,013 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 11:55:07,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-18 11:55:07,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-11-18 11:55:07,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-18 11:55:07,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2018-11-18 11:55:07,046 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 24 [2018-11-18 11:55:07,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:55:07,047 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2018-11-18 11:55:07,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:55:07,047 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2018-11-18 11:55:07,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 11:55:07,048 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:55:07,048 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 11:55:07,048 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:55:07,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:55:07,049 INFO L82 PathProgramCache]: Analyzing trace with hash 219182754, now seen corresponding path program 1 times [2018-11-18 11:55:07,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:55:07,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:55:07,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:55:07,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:55:07,050 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:55:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:55:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:55:07,184 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 11:55:07,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:55:07 BoogieIcfgContainer [2018-11-18 11:55:07,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:55:07,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:55:07,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:55:07,223 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:55:07,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:55:06" (3/4) ... [2018-11-18 11:55:07,226 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:55:07,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:55:07,227 INFO L168 Benchmark]: Toolchain (without parser) took 1424.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:07,228 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:55:07,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.69 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 938.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:07,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.93 ms. Allocated memory is still 1.0 GB. Free memory was 938.3 MB in the beginning and 935.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:07,229 INFO L168 Benchmark]: Boogie Preprocessor took 88.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 935.6 MB in the beginning and 1.2 GB in the end (delta: -247.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:07,229 INFO L168 Benchmark]: RCFGBuilder took 603.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:07,230 INFO L168 Benchmark]: TraceAbstraction took 473.47 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:07,230 INFO L168 Benchmark]: Witness Printer took 3.14 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 11:55:07,232 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 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.69 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 938.3 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 24.93 ms. Allocated memory is still 1.0 GB. Free memory was 938.3 MB in the beginning and 935.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 935.6 MB in the beginning and 1.2 GB in the end (delta: -247.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 603.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 473.47 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.14 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: 186]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 168, overapproximation of someBinaryArithmeticDOUBLEoperation at line 131, overapproximation of bitwiseAnd at line 167. Possible FailurePath: [L15-L24] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L26] static const double zero = 0.0; [L109-L112] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L114] static const double zero_log10 = 0.0; VAL [\old(ivln10_log10)=6442450946, \old(Lg1_log)=6442450965, \old(Lg2_log)=6442450967, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450950, \old(Lg5_log)=6442450952, \old(Lg6_log)=6442450962, \old(Lg7_log)=6442450959, \old(ln2_hi_log)=6442450948, \old(ln2_lo_log)=6442450954, \old(log10_2hi_log10)=6442450956, \old(log10_2lo_log10)=6442450961, \old(two54_log)=6442450963, \old(two54_log10)=6442450957, \old(zero)=6442450966, \old(zero_log10)=6442450953, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L181] double x = 1.0 / 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] CALL, EXPR __ieee754_log10(x) VAL [\old(x)=6442450960, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L117] double y, z; [L118] __int32_t i, k, hx; [L119] __uint32_t lx; VAL [\old(x)=6442450960, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450960, zero=0, zero_log10=0] [L122] FCALL ieee_double_shape_type ew_u; [L123] FCALL ew_u.value = (x) [L124] EXPR, FCALL ew_u.parts.msw [L124] (hx) = ew_u.parts.msw [L125] EXPR, FCALL ew_u.parts.lsw [L125] (lx) = ew_u.parts.lsw [L126] COND FALSE !(0) VAL [\old(x)=6442450960, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=2147483648, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450960, zero=0, zero_log10=0] [L128] k = 0 VAL [\old(x)=6442450960, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=2147483648, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450960, zero=0, zero_log10=0] [L129] COND TRUE hx < 0x00100000 VAL [\old(x)=6442450960, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=2147483648, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450960, zero=0, zero_log10=0] [L130] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L131] RET return -two54_log10 / zero_log10; VAL [\old(x)=6442450960, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=2147483648, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450960, zero=0, zero_log10=0] [L182] EXPR __ieee754_log10(x) VAL [__ieee754_log10(x)=6442450951, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450960, zero=0, zero_log10=0] [L182] double res = __ieee754_log10(x); [L185] CALL, EXPR isinf_double(res) VAL [\old(x)=6442450951, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L160] __int32_t hx, lx; VAL [\old(x)=6442450951, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450951, zero=0, zero_log10=0] [L162] FCALL ieee_double_shape_type ew_u; [L163] FCALL ew_u.value = (x) [L164] EXPR, FCALL ew_u.parts.msw [L164] (hx) = ew_u.parts.msw [L165] EXPR, FCALL ew_u.parts.lsw [L165] (lx) = ew_u.parts.lsw [L166] COND FALSE !(0) VAL [\old(x)=6442450951, hx=0, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=-2147483648, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450951, zero=0, zero_log10=0] [L167] hx &= 0x7fffffff [L168] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L169] hx = 0x7ff00000 - hx [L170] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=6442450951, \result=0, hx=2146435073, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=-2147483648, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450951, zero=0, zero_log10=0] [L185] EXPR isinf_double(res) VAL [isinf_double(res)=0, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, res=6442450951, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450960, zero=0, zero_log10=0] [L185] COND TRUE !isinf_double(res) [L186] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, res=6442450951, two54_log=18014398509481984, two54_log10=18014398509481984, x=6442450960, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 61 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 75 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=61occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 11:55:08,945 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:55:08,946 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:55:08,961 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:55:08,962 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:55:08,962 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:55:08,963 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:55:08,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:55:08,969 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:55:08,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:55:08,971 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:55:08,971 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:55:08,972 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:55:08,972 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:55:08,973 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:55:08,974 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:55:08,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:55:08,978 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:55:08,979 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:55:08,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:55:08,982 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:55:08,984 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:55:08,987 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:55:08,987 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:55:08,988 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:55:08,988 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:55:08,989 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:55:08,990 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:55:08,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:55:08,991 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:55:08,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:55:08,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:55:08,992 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:55:08,993 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:55:08,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:55:08,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:55:08,994 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 11:55:09,009 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:55:09,009 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:55:09,010 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:55:09,010 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:55:09,010 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:55:09,010 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:55:09,011 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:55:09,011 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:55:09,011 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:55:09,011 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:55:09,012 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:55:09,012 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:55:09,012 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:55:09,012 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:55:09,012 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:55:09,013 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:55:09,013 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:55:09,013 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:55:09,013 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:55:09,013 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:55:09,013 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:55:09,014 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:55:09,014 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:55:09,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:55:09,014 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:55:09,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:55:09,014 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:55:09,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:55:09,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:55:09,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:55:09,015 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:55:09,015 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 11:55:09,015 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:55:09,016 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:55:09,016 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:55:09,016 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_89aeb11b-6436-4d06-8963-a75ea65f0dd6/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 -> 71e4f1801ba3411ad4ae97f6f7ad3a4e544f01e4 [2018-11-18 11:55:09,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:55:09,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:55:09,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:55:09,065 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:55:09,066 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:55:09,066 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0981_true-unreach-call.c [2018-11-18 11:55:09,115 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data/fa77fdbf3/ec314aba9af843babca918227d88f828/FLAGa037ff338 [2018-11-18 11:55:09,466 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:55:09,466 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/sv-benchmarks/c/float-newlib/double_req_bl_0981_true-unreach-call.c [2018-11-18 11:55:09,471 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data/fa77fdbf3/ec314aba9af843babca918227d88f828/FLAGa037ff338 [2018-11-18 11:55:09,886 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/data/fa77fdbf3/ec314aba9af843babca918227d88f828 [2018-11-18 11:55:09,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:55:09,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:55:09,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:55:09,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:55:09,893 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:55:09,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:55:09" (1/1) ... [2018-11-18 11:55:09,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4863d81a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:09, skipping insertion in model container [2018-11-18 11:55:09,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:55:09" (1/1) ... [2018-11-18 11:55:09,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:55:09,929 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:55:10,155 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:55:10,160 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:55:10,204 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:55:10,232 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:55:10,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10 WrapperNode [2018-11-18 11:55:10,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:55:10,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:55:10,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:55:10,234 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:55:10,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:55:10,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:55:10,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:55:10,307 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:55:10,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... [2018-11-18 11:55:10,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:55:10,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:55:10,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:55:10,411 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:55:10,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:55:10,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 11:55:10,785 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10 [2018-11-18 11:55:10,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10 [2018-11-18 11:55:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 11:55:10,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 11:55:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 11:55:10,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 11:55:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 11:55:10,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:55:10,797 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:55:10,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:55:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:55:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:55:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 11:55:10,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:55:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:55:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 11:55:10,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:55:11,299 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:55:15,903 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:55:16,103 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:55:18,297 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:55:41,330 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:55:41,398 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:55:41,611 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:55:41,637 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:55:41,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:55:41 BoogieIcfgContainer [2018-11-18 11:55:41,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:55:41,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:55:41,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:55:41,641 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:55:41,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:55:09" (1/3) ... [2018-11-18 11:55:41,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bee511b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:55:41, skipping insertion in model container [2018-11-18 11:55:41,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:55:10" (2/3) ... [2018-11-18 11:55:41,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bee511b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:55:41, skipping insertion in model container [2018-11-18 11:55:41,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:55:41" (3/3) ... [2018-11-18 11:55:41,648 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981_true-unreach-call.c [2018-11-18 11:55:41,657 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:55:41,664 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:55:41,677 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:55:41,702 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:55:41,703 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:55:41,703 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:55:41,703 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:55:41,703 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:55:41,704 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:55:41,704 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:55:41,704 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:55:41,704 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:55:41,719 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-11-18 11:55:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 11:55:41,725 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:55:41,726 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 11:55:41,728 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:55:41,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:55:41,733 INFO L82 PathProgramCache]: Analyzing trace with hash -270558648, now seen corresponding path program 1 times [2018-11-18 11:55:41,737 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:55:41,738 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/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 11:55:41,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:55:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:55:42,691 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:55:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:55:42,708 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:55:42,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:55:42,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:55:42,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:55:42,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:55:42,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:55:42,745 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-11-18 11:55:42,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:55:42,768 INFO L93 Difference]: Finished difference Result 112 states and 172 transitions. [2018-11-18 11:55:42,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:55:42,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 11:55:42,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:55:42,778 INFO L225 Difference]: With dead ends: 112 [2018-11-18 11:55:42,778 INFO L226 Difference]: Without dead ends: 56 [2018-11-18 11:55:42,781 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:55:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-18 11:55:42,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-18 11:55:42,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-18 11:55:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2018-11-18 11:55:42,818 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 23 [2018-11-18 11:55:42,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:55:42,818 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2018-11-18 11:55:42,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:55:42,819 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2018-11-18 11:55:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:55:42,820 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:55:42,820 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 11:55:42,820 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:55:42,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:55:42,821 INFO L82 PathProgramCache]: Analyzing trace with hash 185569323, now seen corresponding path program 1 times [2018-11-18 11:55:42,821 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:55:42,821 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/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 11:55:42,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:55:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:55:43,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:55:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:55:43,748 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:55:43,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:55:43,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:55:43,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:55:43,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:55:43,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:55:43,778 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand 6 states. [2018-11-18 11:55:50,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:55:50,352 INFO L93 Difference]: Finished difference Result 78 states and 93 transitions. [2018-11-18 11:55:50,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:55:50,353 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 11:55:50,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:55:50,355 INFO L225 Difference]: With dead ends: 78 [2018-11-18 11:55:50,356 INFO L226 Difference]: Without dead ends: 56 [2018-11-18 11:55:50,357 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:55:50,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-18 11:55:50,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2018-11-18 11:55:50,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-18 11:55:50,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2018-11-18 11:55:50,369 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 25 [2018-11-18 11:55:50,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:55:50,369 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2018-11-18 11:55:50,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:55:50,369 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2018-11-18 11:55:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:55:50,370 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:55:50,370 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 11:55:50,371 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:55:50,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:55:50,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1304082036, now seen corresponding path program 1 times [2018-11-18 11:55:50,371 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:55:50,372 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89aeb11b-6436-4d06-8963-a75ea65f0dd6/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 11:55:50,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:55:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:55:50,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:55:51,160 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-18 11:55:51,778 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:55:51,786 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:55:51,793 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:55:51,795 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:55:51,819 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:55:51,828 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:55:51,833 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 80 treesize of output 135 [2018-11-18 11:55:52,095 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2018-11-18 11:55:52,096 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_1 term size 36 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 11:55:52,099 INFO L168 Benchmark]: Toolchain (without parser) took 42209.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 953.2 MB in the beginning and 1.0 GB in the end (delta: -70.1 MB). Peak memory consumption was 95.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:52,099 INFO L168 Benchmark]: CDTParser took 0.17 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 11:55:52,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.05 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 931.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:52,100 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.03 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 11:55:52,100 INFO L168 Benchmark]: Boogie Preprocessor took 91.45 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 11:55:52,101 INFO L168 Benchmark]: RCFGBuilder took 31227.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:52,101 INFO L168 Benchmark]: TraceAbstraction took 10459.97 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: 94.0 MB). Peak memory consumption was 94.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:55:52,104 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 343.05 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 931.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.03 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 91.45 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 31227.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -185.6 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10459.97 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: 94.0 MB). Peak memory consumption was 94.0 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_1 term size 36 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_1 term size 36: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...