./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e70fb0031ee54295dcc583b462c02b21fc0481d0 .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e70fb0031ee54295dcc583b462c02b21fc0481d0 .............................................................................................................................................................................................................................................. 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 0.2.1-dev-5709675 [2021-10-16 02:56:15,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:56:15,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:56:15,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:56:15,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:56:15,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:56:15,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:56:15,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:56:15,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:56:15,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:56:15,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:56:15,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:56:15,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:56:15,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:56:15,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:56:15,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:56:15,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:56:15,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:56:15,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:56:15,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:56:15,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:56:15,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:56:15,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:56:15,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:56:15,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:56:15,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:56:15,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:56:15,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:56:15,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:56:15,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:56:15,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:56:15,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:56:15,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:56:15,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:56:15,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:56:15,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:56:15,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:56:15,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:56:15,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:56:15,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:56:15,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:56:15,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:56:15,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:56:15,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:56:15,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:56:15,284 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:56:15,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:56:15,285 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:56:15,285 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:56:15,285 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:56:15,286 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:56:15,286 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:56:15,286 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:56:15,286 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:56:15,287 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:56:15,287 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:56:15,287 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:56:15,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:56:15,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:56:15,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:56:15,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:56:15,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:56:15,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:56:15,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:56:15,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:56:15,290 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:56:15,290 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:56:15,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:56:15,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:56:15,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:56:15,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:56:15,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:56:15,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:56:15,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:56:15,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:56:15,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:56:15,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:56:15,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:56:15,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:56:15,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:56:15,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:56:15,294 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2021-10-16 02:56:15,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:56:15,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:56:15,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:56:15,620 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:56:15,621 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:56:15,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-10-16 02:56:15,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data/f062f02c4/808837d6f27a4a189bb936fc57baa171/FLAG17237bd69 [2021-10-16 02:56:16,196 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:56:16,197 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/sv-benchmarks/c/float-benchs/nan_double.c [2021-10-16 02:56:16,203 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data/f062f02c4/808837d6f27a4a189bb936fc57baa171/FLAG17237bd69 [2021-10-16 02:56:16,589 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data/f062f02c4/808837d6f27a4a189bb936fc57baa171 [2021-10-16 02:56:16,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:56:16,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:56:16,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:56:16,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:56:16,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:56:16,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7c7ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16, skipping insertion in model container [2021-10-16 02:56:16,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:56:16,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:56:16,812 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-16 02:56:16,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:56:16,835 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:56:16,846 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-16 02:56:16,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:56:16,864 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:56:16,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16 WrapperNode [2021-10-16 02:56:16,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:56:16,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:56:16,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:56:16,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:56:16,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:56:16,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:56:16,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:56:16,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:56:16,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:56:16,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:56:16,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:56:16,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:56:16,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (1/1) ... [2021-10-16 02:56:16,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:56:16,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:56:16,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:56:16,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:56:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:56:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:56:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:56:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:56:17,325 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:56:17,325 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 02:56:17,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:17 BoogieIcfgContainer [2021-10-16 02:56:17,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:56:17,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:56:17,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:56:17,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:56:17,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:56:16" (1/3) ... [2021-10-16 02:56:17,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b2c119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:17, skipping insertion in model container [2021-10-16 02:56:17,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:16" (2/3) ... [2021-10-16 02:56:17,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b2c119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:17, skipping insertion in model container [2021-10-16 02:56:17,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:17" (3/3) ... [2021-10-16 02:56:17,337 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-10-16 02:56:17,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:56:17,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:56:17,395 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:56:17,403 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:56:17,404 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:56:17,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:56:17,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:56:17,425 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:56:17,426 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:56:17,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:56:17,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:56:17,433 INFO L82 PathProgramCache]: Analyzing trace with hash 47251, now seen corresponding path program 1 times [2021-10-16 02:56:17,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:56:17,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344494898] [2021-10-16 02:56:17,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:56:17,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:56:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:56:17,562 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:56:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:56:17,604 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:56:17,606 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:56:17,608 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:17,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:56:17,618 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:56:17,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:56:17 BoogieIcfgContainer [2021-10-16 02:56:17,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:56:17,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:56:17,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:56:17,638 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:56:17,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:17" (3/4) ... [2021-10-16 02:56:17,643 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:56:17,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:56:17,646 INFO L168 Benchmark]: Toolchain (without parser) took 1050.70 ms. Allocated memory is still 104.9 MB. Free memory was 66.9 MB in the beginning and 54.6 MB in the end (delta: 12.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:17,646 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 83.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:17,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.15 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 80.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:17,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.85 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 78.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:17,649 INFO L168 Benchmark]: Boogie Preprocessor took 22.31 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 77.7 MB in the end (delta: 859.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:17,650 INFO L168 Benchmark]: RCFGBuilder took 399.19 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 68.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:17,651 INFO L168 Benchmark]: TraceAbstraction took 307.24 ms. Allocated memory is still 104.9 MB. Free memory was 67.7 MB in the beginning and 54.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:17,652 INFO L168 Benchmark]: Witness Printer took 6.19 ms. Allocated memory is still 104.9 MB. Free memory was 54.7 MB in the beginning and 54.6 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:17,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 83.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.15 ms. Allocated memory is still 104.9 MB. Free memory was 66.7 MB in the beginning and 80.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.85 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 78.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.31 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 77.7 MB in the end (delta: 859.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 399.19 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 68.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 307.24 ms. Allocated memory is still 104.9 MB. Free memory was 67.7 MB in the beginning and 54.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 6.19 ms. Allocated memory is still 104.9 MB. Free memory was 54.7 MB in the beginning and 54.6 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 223.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.0ms SsaConstructionTime, 41.4ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:56:17,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:56:20,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:56:20,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:56:20,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:56:20,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:56:20,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:56:20,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:56:20,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:56:20,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:56:20,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:56:20,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:56:20,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:56:20,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:56:20,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:56:20,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:56:20,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:56:20,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:56:20,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:56:20,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:56:20,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:56:20,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:56:20,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:56:20,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:56:20,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:56:20,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:56:20,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:56:20,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:56:20,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:56:20,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:56:20,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:56:20,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:56:20,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:56:20,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:56:20,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:56:20,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:56:20,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:56:20,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:56:20,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:56:20,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:56:20,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:56:20,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:56:20,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:56:20,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:56:20,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:56:20,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:56:20,419 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:56:20,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:56:20,420 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:56:20,420 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:56:20,420 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:56:20,420 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:56:20,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:56:20,421 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:56:20,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:56:20,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:56:20,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:56:20,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:56:20,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:56:20,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:56:20,423 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:56:20,423 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:56:20,423 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:56:20,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:56:20,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:56:20,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:56:20,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:56:20,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:56:20,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:56:20,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:56:20,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:56:20,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:56:20,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:56:20,425 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:56:20,426 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:56:20,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:56:20,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:56:20,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:56:20,426 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2021-10-16 02:56:20,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:56:20,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:56:20,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:56:20,862 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:56:20,863 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:56:20,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-10-16 02:56:20,955 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data/7567c8692/d952c21d855943979c8816a2b102424a/FLAGd2b6477cf [2021-10-16 02:56:21,456 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:56:21,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/sv-benchmarks/c/float-benchs/nan_double.c [2021-10-16 02:56:21,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data/7567c8692/d952c21d855943979c8816a2b102424a/FLAGd2b6477cf [2021-10-16 02:56:21,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/data/7567c8692/d952c21d855943979c8816a2b102424a [2021-10-16 02:56:21,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:56:21,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:56:21,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:56:21,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:56:21,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:56:21,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:21" (1/1) ... [2021-10-16 02:56:21,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ddfb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:21, skipping insertion in model container [2021-10-16 02:56:21,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:21" (1/1) ... [2021-10-16 02:56:21,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:56:21,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:56:22,086 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-16 02:56:22,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:56:22,114 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:56:22,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-16 02:56:22,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:56:22,170 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:56:22,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22 WrapperNode [2021-10-16 02:56:22,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:56:22,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:56:22,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:56:22,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:56:22,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:56:22,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:56:22,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:56:22,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:56:22,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:56:22,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:56:22,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:56:22,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:56:22,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (1/1) ... [2021-10-16 02:56:22,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:56:22,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:56:22,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:56:22,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:56:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:56:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:56:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:56:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:56:22,583 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:56:22,583 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 02:56:22,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:22 BoogieIcfgContainer [2021-10-16 02:56:22,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:56:22,587 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:56:22,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:56:22,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:56:22,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:56:21" (1/3) ... [2021-10-16 02:56:22,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242c54bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:22, skipping insertion in model container [2021-10-16 02:56:22,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:22" (2/3) ... [2021-10-16 02:56:22,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242c54bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:22, skipping insertion in model container [2021-10-16 02:56:22,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:22" (3/3) ... [2021-10-16 02:56:22,595 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-10-16 02:56:22,601 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:56:22,601 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:56:22,656 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:56:22,664 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:56:22,664 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:56:22,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:56:22,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:56:22,683 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:56:22,683 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:56:22,684 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:56:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:56:22,690 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-16 02:56:22,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:56:22,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165030397] [2021-10-16 02:56:22,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:56:22,705 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:56:22,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:56:22,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:56:22,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:56:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:56:22,868 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:56:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:56:22,969 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 02:56:22,972 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:56:22,973 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:56:23,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:56:23,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:56:23,191 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:56:23,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:56:23 BoogieIcfgContainer [2021-10-16 02:56:23,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:56:23,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:56:23,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:56:23,225 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:56:23,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:22" (3/4) ... [2021-10-16 02:56:23,228 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:56:23,278 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:56:23,279 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:56:23,291 INFO L168 Benchmark]: Toolchain (without parser) took 1392.94 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 43.0 MB in the beginning and 55.8 MB in the end (delta: -12.8 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:23,292 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 62.9 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:23,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.46 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 46.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:23,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.92 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 44.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:23,296 INFO L168 Benchmark]: Boogie Preprocessor took 60.11 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 43.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:23,297 INFO L168 Benchmark]: RCFGBuilder took 300.09 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 35.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:23,300 INFO L168 Benchmark]: TraceAbstraction took 629.58 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 34.4 MB in the beginning and 57.3 MB in the end (delta: -22.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:56:23,302 INFO L168 Benchmark]: Witness Printer took 55.96 ms. Allocated memory is still 79.7 MB. Free memory was 57.3 MB in the beginning and 55.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:56:23,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 62.9 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.46 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 46.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.92 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 44.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.11 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 43.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 300.09 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 35.0 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 629.58 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 34.4 MB in the beginning and 57.3 MB in the end (delta: -22.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 55.96 ms. Allocated memory is still 79.7 MB. Free memory was 57.3 MB in the beginning and 55.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 535.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.6ms SsaConstructionTime, 28.3ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 02:56:23,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92381d87-d574-4c89-bb4d-eb7999b639e3/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...