./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_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_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b ................................................................................................................................................................................................................................................................................................................................................. 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_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b ................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_3 term size 25 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:14:39,544 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:14:39,545 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:14:39,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:14:39,553 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:14:39,554 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:14:39,555 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:14:39,556 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:14:39,557 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:14:39,558 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:14:39,558 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:14:39,558 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:14:39,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:14:39,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:14:39,560 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:14:39,561 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:14:39,562 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:14:39,563 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:14:39,565 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:14:39,566 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:14:39,567 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:14:39,568 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:14:39,569 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:14:39,569 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:14:39,570 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:14:39,570 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:14:39,571 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:14:39,571 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:14:39,572 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:14:39,573 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:14:39,574 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:14:39,574 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:14:39,574 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:14:39,574 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:14:39,575 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:14:39,575 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:14:39,576 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:14:39,585 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:14:39,585 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:14:39,585 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:14:39,586 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:14:39,586 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:14:39,586 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:14:39,586 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:14:39,586 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:14:39,586 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:14:39,586 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:14:39,587 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:14:39,587 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:14:39,587 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:14:39,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:14:39,587 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:14:39,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:14:39,588 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:14:39,588 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:14:39,588 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:14:39,588 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:14:39,588 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:14:39,588 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:14:39,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:14:39,589 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:14:39,590 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:14:39,590 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:14:39,590 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:14:39,591 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:14:39,591 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:14:39,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:14:39,591 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:14:39,591 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:14:39,591 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:14:39,591 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:14:39,592 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:14:39,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:14:39,592 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:14:39,592 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_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2018-11-18 14:14:39,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:14:39,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:14:39,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:14:39,629 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:14:39,629 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:14:39,630 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c [2018-11-18 14:14:39,663 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data/46ab4e807/f614575ed89f405382cc5fb421c462f2/FLAG4ec4d28f6 [2018-11-18 14:14:40,065 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:14:40,065 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c [2018-11-18 14:14:40,069 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data/46ab4e807/f614575ed89f405382cc5fb421c462f2/FLAG4ec4d28f6 [2018-11-18 14:14:40,077 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data/46ab4e807/f614575ed89f405382cc5fb421c462f2 [2018-11-18 14:14:40,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:14:40,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:14:40,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:14:40,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:14:40,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:14:40,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7601ec79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40, skipping insertion in model container [2018-11-18 14:14:40,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:14:40,107 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:14:40,236 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:14:40,238 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:14:40,264 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:14:40,280 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:14:40,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40 WrapperNode [2018-11-18 14:14:40,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:14:40,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:14:40,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:14:40,281 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:14:40,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:14:40,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:14:40,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:14:40,335 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:14:40,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... [2018-11-18 14:14:40,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:14:40,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:14:40,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:14:40,366 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:14:40,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 14:14:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 14:14:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 14:14:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 14:14:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 14:14:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:14:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:14:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:14:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:14:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:14:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:14:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:14:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:14:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:14:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:14:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:14:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:14:40,654 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:14:40,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:14:40 BoogieIcfgContainer [2018-11-18 14:14:40,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:14:40,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:14:40,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:14:40,658 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:14:40,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:14:40" (1/3) ... [2018-11-18 14:14:40,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405ae866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:14:40, skipping insertion in model container [2018-11-18 14:14:40,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:40" (2/3) ... [2018-11-18 14:14:40,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405ae866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:14:40, skipping insertion in model container [2018-11-18 14:14:40,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:14:40" (3/3) ... [2018-11-18 14:14:40,661 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a_true-unreach-call.c [2018-11-18 14:14:40,666 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:14:40,671 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:14:40,680 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:14:40,698 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:14:40,698 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:14:40,698 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:14:40,698 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:14:40,698 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:14:40,698 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:14:40,699 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:14:40,699 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:14:40,708 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-11-18 14:14:40,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:14:40,712 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:14:40,712 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 14:14:40,714 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:14:40,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:14:40,717 INFO L82 PathProgramCache]: Analyzing trace with hash -582759952, now seen corresponding path program 1 times [2018-11-18 14:14:40,719 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:14:40,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:14:40,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:14:40,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:14:40,748 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:14:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:14:40,821 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 14:14:40,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:14:40,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:14:40,823 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:14:40,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:14:40,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:14:40,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:14:40,835 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-11-18 14:14:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:14:40,851 INFO L93 Difference]: Finished difference Result 82 states and 121 transitions. [2018-11-18 14:14:40,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:14:40,853 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 14:14:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:14:40,861 INFO L225 Difference]: With dead ends: 82 [2018-11-18 14:14:40,861 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 14:14:40,863 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 14:14:40,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 14:14:40,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 14:14:40,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 14:14:40,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-18 14:14:40,887 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 24 [2018-11-18 14:14:40,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:14:40,887 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-18 14:14:40,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:14:40,887 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-18 14:14:40,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:14:40,888 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:14:40,888 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 14:14:40,888 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:14:40,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:14:40,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1054614853, now seen corresponding path program 1 times [2018-11-18 14:14:40,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:14:40,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:14:40,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:14:40,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:14:40,890 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:14:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:14:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:14:41,006 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:14:41,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:14:41 BoogieIcfgContainer [2018-11-18 14:14:41,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:14:41,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:14:41,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:14:41,032 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:14:41,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:14:40" (3/4) ... [2018-11-18 14:14:41,034 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:14:41,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:14:41,035 INFO L168 Benchmark]: Toolchain (without parser) took 955.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -119.1 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:41,036 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:14:41,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 937.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:41,037 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -198.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:41,037 INFO L168 Benchmark]: Boogie Preprocessor took 30.23 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 14:14:41,038 INFO L168 Benchmark]: RCFGBuilder took 289.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:41,038 INFO L168 Benchmark]: TraceAbstraction took 375.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:14:41,039 INFO L168 Benchmark]: Witness Printer took 2.77 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 14:14:41,041 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 200.41 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 937.6 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 53.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -198.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.23 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. * RCFGBuilder took 289.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 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: 137]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] 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; [L43] static const double zero = 0.0; VAL [\old(Lg1_log)=10737418257, \old(Lg2_log)=10737418259, \old(Lg3_log)=10737418243, \old(Lg4_log)=10737418247, \old(Lg5_log)=10737418249, \old(Lg6_log)=10737418254, \old(Lg7_log)=10737418253, \old(ln2_hi_log)=10737418245, \old(ln2_lo_log)=10737418250, \old(two54_log)=10737418255, \old(zero)=10737418258, 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, two54_log=18014398509481984, zero=0] [L132] double x = 0.0; VAL [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, two54_log=18014398509481984, x=0, zero=0] [L133] CALL, EXPR __ieee754_log(x) VAL [\old(x)=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, two54_log=18014398509481984, zero=0] [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [\old(x)=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, two54_log=18014398509481984, x=0, zero=0] [L51] FCALL ieee_double_shape_type ew_u; [L52] FCALL ew_u.value = (x) [L53] EXPR, FCALL ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR, FCALL ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L55] COND FALSE !(0) VAL [\old(x)=0, hx=-2147483646, 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, lx=2147483648, two54_log=18014398509481984, x=0, zero=0] [L57] k = 0 VAL [\old(x)=0, hx=-2147483646, 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, lx=2147483648, two54_log=18014398509481984, x=0, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [\old(x)=0, hx=-2147483646, 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, lx=2147483648, two54_log=18014398509481984, x=0, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] RET return -two54_log / zero; VAL [\old(x)=0, hx=-2147483646, 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, lx=2147483648, two54_log=18014398509481984, x=0, zero=0] [L133] EXPR __ieee754_log(x) VAL [__ieee754_log(x)=10737418248, 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, two54_log=18014398509481984, x=0, zero=0] [L133] double res = __ieee754_log(x); [L136] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418248, 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, two54_log=18014398509481984, zero=0] [L19] __int32_t hx, lx; VAL [\old(x)=10737418248, 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, two54_log=18014398509481984, x=10737418248, zero=0] [L21] FCALL ieee_double_shape_type ew_u; [L22] FCALL ew_u.value = (x) [L23] EXPR, FCALL ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR, FCALL ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L25] COND FALSE !(0) VAL [\old(x)=10737418248, hx=-2147483646, 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, lx=-2147483648, two54_log=18014398509481984, x=10737418248, zero=0] [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418248, \result=0, hx=2146435073, 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, lx=-2147483648, two54_log=18014398509481984, x=10737418248, zero=0] [L136] EXPR isinf_double(res) VAL [isinf_double(res)=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, res=10737418248, two54_log=18014398509481984, x=0, zero=0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [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, res=10737418248, two54_log=18014398509481984, x=0, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 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=45occurred 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 14:14:42,480 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:14:42,481 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:14:42,490 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:14:42,490 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:14:42,491 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:14:42,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:14:42,494 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:14:42,495 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:14:42,495 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:14:42,496 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:14:42,496 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:14:42,497 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:14:42,498 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:14:42,499 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:14:42,499 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:14:42,500 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:14:42,501 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:14:42,503 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:14:42,504 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:14:42,504 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:14:42,506 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:14:42,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:14:42,507 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:14:42,507 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:14:42,508 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:14:42,508 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:14:42,510 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:14:42,510 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:14:42,511 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:14:42,511 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:14:42,511 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:14:42,512 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:14:42,512 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:14:42,512 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:14:42,514 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:14:42,514 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 14:14:42,524 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:14:42,524 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:14:42,525 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:14:42,525 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:14:42,526 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:14:42,526 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:14:42,526 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:14:42,526 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:14:42,526 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:14:42,526 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:14:42,527 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:14:42,527 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:14:42,527 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:14:42,527 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:14:42,527 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:14:42,527 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:14:42,527 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:14:42,528 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:14:42,528 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:14:42,528 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:14:42,528 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:14:42,528 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:14:42,528 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:14:42,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:14:42,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:14:42,529 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:14:42,529 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:14:42,529 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:14:42,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:14:42,529 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:14:42,529 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:14:42,529 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 14:14:42,530 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:14:42,530 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:14:42,530 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:14:42,530 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_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2018-11-18 14:14:42,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:14:42,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:14:42,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:14:42,571 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:14:42,571 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:14:42,572 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c [2018-11-18 14:14:42,616 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data/3c41850c3/c66491a7827c4a8da1789dc51af4dba8/FLAG8d8960f8d [2018-11-18 14:14:43,015 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:14:43,015 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/sv-benchmarks/c/float-newlib/double_req_bl_0910a_true-unreach-call.c [2018-11-18 14:14:43,020 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data/3c41850c3/c66491a7827c4a8da1789dc51af4dba8/FLAG8d8960f8d [2018-11-18 14:14:43,029 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/data/3c41850c3/c66491a7827c4a8da1789dc51af4dba8 [2018-11-18 14:14:43,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:14:43,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:14:43,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:14:43,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:14:43,035 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:14:43,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26edcba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43, skipping insertion in model container [2018-11-18 14:14:43,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:14:43,060 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:14:43,200 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:14:43,203 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:14:43,231 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:14:43,249 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:14:43,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43 WrapperNode [2018-11-18 14:14:43,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:14:43,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:14:43,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:14:43,250 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:14:43,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:14:43,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:14:43,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:14:43,267 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:14:43,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... [2018-11-18 14:14:43,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:14:43,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:14:43,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:14:43,348 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:14:43,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 14:14:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 14:14:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2018-11-18 14:14:43,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2018-11-18 14:14:43,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 14:14:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 14:14:43,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 14:14:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:14:43,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:14:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:14:43,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:14:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:14:43,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:14:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:14:43,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:14:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:14:43,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:14:43,544 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:15:04,598 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:15:04,661 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:15:04,791 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:15:04,811 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:15:04,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:15:04 BoogieIcfgContainer [2018-11-18 14:15:04,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:15:04,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:15:04,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:15:04,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:15:04,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:14:43" (1/3) ... [2018-11-18 14:15:04,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f5e946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:15:04, skipping insertion in model container [2018-11-18 14:15:04,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:14:43" (2/3) ... [2018-11-18 14:15:04,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f5e946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:15:04, skipping insertion in model container [2018-11-18 14:15:04,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:15:04" (3/3) ... [2018-11-18 14:15:04,815 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a_true-unreach-call.c [2018-11-18 14:15:04,820 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:15:04,825 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:15:04,833 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:15:04,849 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:15:04,850 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:15:04,850 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:15:04,850 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:15:04,850 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:15:04,850 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:15:04,850 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:15:04,850 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:15:04,850 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:15:04,859 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-18 14:15:04,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:15:04,863 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:15:04,864 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 14:15:04,865 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:15:04,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:15:04,868 INFO L82 PathProgramCache]: Analyzing trace with hash -831664541, now seen corresponding path program 1 times [2018-11-18 14:15:04,871 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:15:04,871 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 14:15:04,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:15:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:15:05,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:15:05,594 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 14:15:05,597 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:15:05,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:15:05,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:15:05,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:15:05,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:15:05,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:15:05,627 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2018-11-18 14:15:05,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:15:05,646 INFO L93 Difference]: Finished difference Result 80 states and 119 transitions. [2018-11-18 14:15:05,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:15:05,647 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 14:15:05,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:15:05,654 INFO L225 Difference]: With dead ends: 80 [2018-11-18 14:15:05,654 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 14:15:05,656 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 14:15:05,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 14:15:05,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 14:15:05,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 14:15:05,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2018-11-18 14:15:05,679 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 23 [2018-11-18 14:15:05,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:15:05,680 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2018-11-18 14:15:05,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:15:05,680 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2018-11-18 14:15:05,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:15:05,680 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:15:05,681 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 14:15:05,681 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:15:05,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:15:05,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1450049238, now seen corresponding path program 1 times [2018-11-18 14:15:05,682 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:15:05,682 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 14:15:05,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:15:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:15:06,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:15:12,218 WARN L180 SmtUtils]: Spent 4.00 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 14:15:12,287 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:12,287 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:12,291 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 14:15:12,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-18 14:15:12,326 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:12,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 14:15:12,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-11-18 14:15:12,343 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:15:12,344 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:12,346 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:15:12,355 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:15:12,355 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 14:15:12,574 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 14:15:12,574 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:15:12,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:15:12,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 14:15:12,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 14:15:12,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 14:15:12,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:15:12,599 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand 10 states. [2018-11-18 14:15:32,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:15:32,238 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2018-11-18 14:15:32,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:15:32,239 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-11-18 14:15:32,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:15:32,241 INFO L225 Difference]: With dead ends: 49 [2018-11-18 14:15:32,241 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 14:15:32,242 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-11-18 14:15:32,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 14:15:32,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-11-18 14:15:32,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 14:15:32,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2018-11-18 14:15:32,249 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 25 [2018-11-18 14:15:32,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:15:32,249 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-11-18 14:15:32,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 14:15:32,249 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2018-11-18 14:15:32,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:15:32,250 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:15:32,250 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 14:15:32,250 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:15:32,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:15:32,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1355266699, now seen corresponding path program 1 times [2018-11-18 14:15:32,251 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:15:32,251 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/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 14:15:32,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:15:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:15:32,362 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:15:32,420 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 14:15:32,420 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:15:32,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:15:32,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:15:32,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:15:32,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:15:32,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:15:32,435 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand 6 states. [2018-11-18 14:15:41,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:15:41,980 INFO L93 Difference]: Finished difference Result 68 states and 84 transitions. [2018-11-18 14:15:42,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:15:42,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 14:15:42,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:15:42,572 INFO L225 Difference]: With dead ends: 68 [2018-11-18 14:15:42,572 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 14:15:42,573 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:15:42,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 14:15:42,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2018-11-18 14:15:42,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 14:15:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-18 14:15:42,578 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 25 [2018-11-18 14:15:42,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:15:42,578 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-18 14:15:42,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:15:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-18 14:15:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:15:42,579 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:15:42,579 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 14:15:42,579 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:15:42,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:15:42,580 INFO L82 PathProgramCache]: Analyzing trace with hash -449826953, now seen corresponding path program 1 times [2018-11-18 14:15:42,580 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:15:42,580 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 14:15:42,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:15:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:15:43,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:15:43,370 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 14:15:43,370 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:15:43,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:15:43,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 14:15:43,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 14:15:43,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 14:15:43,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:15:43,385 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2018-11-18 14:15:49,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:15:49,528 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2018-11-18 14:15:50,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:15:50,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2018-11-18 14:15:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:15:50,115 INFO L225 Difference]: With dead ends: 53 [2018-11-18 14:15:50,115 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 14:15:50,116 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:15:50,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 14:15:50,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 14:15:50,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 14:15:50,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2018-11-18 14:15:50,121 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 26 [2018-11-18 14:15:50,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:15:50,121 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2018-11-18 14:15:50,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 14:15:50,121 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2018-11-18 14:15:50,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 14:15:50,122 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:15:50,122 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, 1, 1, 1] [2018-11-18 14:15:50,122 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:15:50,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:15:50,123 INFO L82 PathProgramCache]: Analyzing trace with hash -815127430, now seen corresponding path program 1 times [2018-11-18 14:15:50,123 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:15:50,123 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c6d2e33e-9fc8-439c-93e9-609cd2677cf9/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 14:15:50,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:15:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:15:50,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:15:50,571 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:50,572 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:50,573 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:50,574 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:15:50,575 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 76 [2018-11-18 14:15:50,807 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2018-11-18 14:15:50,808 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_3 term size 25 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 14:15:50,810 INFO L168 Benchmark]: Toolchain (without parser) took 67779.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 950.8 MB in the beginning and 939.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 183.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:50,811 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:15:50,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.15 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:50,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.93 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:15:50,812 INFO L168 Benchmark]: Boogie Preprocessor took 80.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 934.7 MB in the beginning and 1.2 GB in the end (delta: -231.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:50,813 INFO L168 Benchmark]: RCFGBuilder took 21463.18 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: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:50,813 INFO L168 Benchmark]: TraceAbstraction took 45998.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 939.2 MB in the end (delta: 182.4 MB). Peak memory consumption was 182.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:15:50,815 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 217.15 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 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 16.93 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 171.4 MB). Free memory was 934.7 MB in the beginning and 1.2 GB in the end (delta: -231.1 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 21463.18 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: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 45998.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 939.2 MB in the end (delta: 182.4 MB). Peak memory consumption was 182.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_3 term size 25 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_3 term size 25: 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...