./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 .......................................................................................................................................................................................................................................... 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_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 ........................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:02:42,662 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:02:42,663 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:02:42,669 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:02:42,669 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:02:42,670 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:02:42,670 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:02:42,671 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:02:42,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:02:42,673 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:02:42,673 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:02:42,673 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:02:42,674 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:02:42,674 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:02:42,675 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:02:42,675 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:02:42,676 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:02:42,677 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:02:42,678 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:02:42,679 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:02:42,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:02:42,680 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:02:42,681 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:02:42,681 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:02:42,681 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:02:42,682 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:02:42,682 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:02:42,683 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:02:42,683 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:02:42,684 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:02:42,684 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:02:42,684 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:02:42,684 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:02:42,685 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:02:42,685 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:02:42,685 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:02:42,686 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 10:02:42,693 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:02:42,693 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:02:42,693 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:02:42,694 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:02:42,694 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:02:42,694 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:02:42,694 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 10:02:42,694 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:02:42,695 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:02:42,696 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:02:42,696 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:02:42,696 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:02:42,696 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:02:42,696 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:02:42,696 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:02:42,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:02:42,696 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:02:42,696 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:02:42,697 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:02:42,697 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 10:02:42,697 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:02:42,697 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 10:02:42,697 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_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer 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 -> Automizer 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 -> 7dc1721e577997f4966a61524053c01b76a6be07 [2018-12-09 10:02:42,714 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:02:42,723 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:02:42,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:02:42,727 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:02:42,727 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:02:42,728 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-12-09 10:02:42,774 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data/5adbd1519/235bde3f05874156bfa59132ca0895f7/FLAGa0b95eef1 [2018-12-09 10:02:43,090 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:02:43,090 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-12-09 10:02:43,094 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data/5adbd1519/235bde3f05874156bfa59132ca0895f7/FLAGa0b95eef1 [2018-12-09 10:02:43,534 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data/5adbd1519/235bde3f05874156bfa59132ca0895f7 [2018-12-09 10:02:43,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:02:43,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:02:43,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:02:43,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:02:43,540 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:02:43,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15319f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43, skipping insertion in model container [2018-12-09 10:02:43,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:02:43,557 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:02:43,654 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:02:43,656 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:02:43,663 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:02:43,671 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:02:43,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43 WrapperNode [2018-12-09 10:02:43,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:02:43,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:02:43,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:02:43,672 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:02:43,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:02:43,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:02:43,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:02:43,684 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:02:43,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... [2018-12-09 10:02:43,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:02:43,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:02:43,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:02:43,694 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:02:43,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/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 [2018-12-09 10:02:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:02:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:02:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:02:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:02:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:02:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:02:43,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 10:02:43,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 10:02:43,824 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:02:43,825 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 10:02:43,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:02:43 BoogieIcfgContainer [2018-12-09 10:02:43,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:02:43,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:02:43,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:02:43,827 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:02:43,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:02:43" (1/3) ... [2018-12-09 10:02:43,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d23c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:02:43, skipping insertion in model container [2018-12-09 10:02:43,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:43" (2/3) ... [2018-12-09 10:02:43,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d23c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:02:43, skipping insertion in model container [2018-12-09 10:02:43,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:02:43" (3/3) ... [2018-12-09 10:02:43,830 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double_false-unreach-call_true-termination.c [2018-12-09 10:02:43,835 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:02:43,840 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:02:43,849 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:02:43,866 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 10:02:43,867 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:02:43,867 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:02:43,867 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:02:43,867 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:02:43,867 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:02:43,867 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:02:43,867 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:02:43,867 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:02:43,877 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-09 10:02:43,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 10:02:43,881 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:02:43,881 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:02:43,882 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:02:43,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:02:43,886 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-12-09 10:02:43,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 10:02:43,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 10:02:43,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:02:43,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:02:43,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 10:02:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:02:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:02:43,946 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 10:02:43,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:02:43 BoogieIcfgContainer [2018-12-09 10:02:43,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:02:43,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:02:43,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:02:43,959 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:02:43,959 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:02:43" (3/4) ... [2018-12-09 10:02:43,961 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 10:02:43,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:02:43,962 INFO L168 Benchmark]: Toolchain (without parser) took 425.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -112.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:02:43,963 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:02:43,963 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.04 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:02:43,964 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.70 ms. Allocated memory is still 1.0 GB. Free memory is still 944.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:02:43,964 INFO L168 Benchmark]: Boogie Preprocessor took 10.40 ms. Allocated memory is still 1.0 GB. Free memory was 944.2 MB in the beginning and 938.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:02:43,964 INFO L168 Benchmark]: RCFGBuilder took 130.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:02:43,965 INFO L168 Benchmark]: TraceAbstraction took 132.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:02:43,965 INFO L168 Benchmark]: Witness Printer took 2.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:02:43,967 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.04 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.70 ms. Allocated memory is still 1.0 GB. Free memory is still 944.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.40 ms. Allocated memory is still 1.0 GB. Free memory was 944.2 MB in the beginning and 938.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 130.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.3 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 132.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.69 ms. Allocated memory is still 1.1 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: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 0.1.23-635dfa2 [2018-12-09 10:02:45,260 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:02:45,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:02:45,267 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:02:45,267 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:02:45,268 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:02:45,268 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:02:45,269 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:02:45,270 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:02:45,270 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:02:45,271 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:02:45,271 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:02:45,271 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:02:45,272 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:02:45,272 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:02:45,273 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:02:45,273 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:02:45,274 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:02:45,275 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:02:45,276 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:02:45,276 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:02:45,277 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:02:45,278 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:02:45,278 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:02:45,278 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:02:45,279 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:02:45,279 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:02:45,280 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:02:45,280 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:02:45,281 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:02:45,281 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:02:45,281 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:02:45,281 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:02:45,281 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:02:45,282 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:02:45,282 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:02:45,282 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 10:02:45,290 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:02:45,290 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:02:45,290 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 10:02:45,290 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 10:02:45,291 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:02:45,291 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:02:45,291 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 10:02:45,291 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:02:45,291 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:02:45,291 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:02:45,291 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:02:45,291 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 10:02:45,291 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:02:45,291 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 10:02:45,292 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 10:02:45,292 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 10:02:45,292 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:02:45,293 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:02:45,293 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 10:02:45,293 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 10:02:45,293 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:02:45,293 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 10:02:45,293 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 10:02:45,293 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_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer 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 -> Automizer 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 -> 7dc1721e577997f4966a61524053c01b76a6be07 [2018-12-09 10:02:45,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:02:45,321 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:02:45,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:02:45,325 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:02:45,325 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:02:45,326 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-12-09 10:02:45,363 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data/8ab004eb4/27cccb764eea4787bc0b1b9cd4229343/FLAG281a68e6b [2018-12-09 10:02:45,774 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:02:45,775 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/sv-benchmarks/c/float-benchs/nan_double_false-unreach-call_true-termination.c [2018-12-09 10:02:45,778 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data/8ab004eb4/27cccb764eea4787bc0b1b9cd4229343/FLAG281a68e6b [2018-12-09 10:02:45,786 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/data/8ab004eb4/27cccb764eea4787bc0b1b9cd4229343 [2018-12-09 10:02:45,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:02:45,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:02:45,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:02:45,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:02:45,792 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:02:45,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63407dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45, skipping insertion in model container [2018-12-09 10:02:45,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:02:45,807 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:02:45,888 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:02:45,891 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:02:45,899 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:02:45,907 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:02:45,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45 WrapperNode [2018-12-09 10:02:45,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:02:45,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:02:45,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:02:45,909 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:02:45,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:02:45,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:02:45,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:02:45,922 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:02:45,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... [2018-12-09 10:02:45,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:02:45,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:02:45,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:02:45,936 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:02:45,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/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 [2018-12-09 10:02:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 10:02:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 10:02:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:02:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:02:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 10:02:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 10:02:46,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 10:02:46,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 10:02:46,071 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:02:46,071 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 10:02:46,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:02:46 BoogieIcfgContainer [2018-12-09 10:02:46,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:02:46,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 10:02:46,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 10:02:46,073 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 10:02:46,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:02:45" (1/3) ... [2018-12-09 10:02:46,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2bf4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:02:46, skipping insertion in model container [2018-12-09 10:02:46,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:02:45" (2/3) ... [2018-12-09 10:02:46,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2bf4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:02:46, skipping insertion in model container [2018-12-09 10:02:46,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:02:46" (3/3) ... [2018-12-09 10:02:46,075 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double_false-unreach-call_true-termination.c [2018-12-09 10:02:46,080 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 10:02:46,084 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 10:02:46,093 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 10:02:46,113 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 10:02:46,113 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 10:02:46,114 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 10:02:46,114 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 10:02:46,114 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 10:02:46,114 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 10:02:46,114 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 10:02:46,114 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 10:02:46,114 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 10:02:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-12-09 10:02:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 10:02:46,128 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 10:02:46,129 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 10:02:46,130 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 10:02:46,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:02:46,133 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-12-09 10:02:46,136 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 10:02:46,136 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/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 [2018-12-09 10:02:46,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 10:02:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:02:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 10:02:46,190 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 10:02:46,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:02:46 BoogieIcfgContainer [2018-12-09 10:02:46,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 10:02:46,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:02:46,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:02:46,205 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:02:46,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:02:46" (3/4) ... [2018-12-09 10:02:46,206 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 10:02:46,230 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_66cb01b4-b91c-40ce-9d91-331746b405e2/bin-2019/uautomizer/witness.graphml [2018-12-09 10:02:46,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:02:46,231 INFO L168 Benchmark]: Toolchain (without parser) took 442.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:02:46,231 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:02:46,232 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.69 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-09 10:02:46,232 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.54 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:02:46,233 INFO L168 Benchmark]: Boogie Preprocessor took 13.35 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:02:46,233 INFO L168 Benchmark]: RCFGBuilder took 135.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-12-09 10:02:46,233 INFO L168 Benchmark]: TraceAbstraction took 132.69 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2018-12-09 10:02:46,234 INFO L168 Benchmark]: Witness Printer took 25.69 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. [2018-12-09 10:02:46,236 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 118.69 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.54 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.35 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 135.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 132.69 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * Witness Printer took 25.69 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: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...