./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG --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 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 .............................................................................................................................................................................................................................................................................................................. 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_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG --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 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 ................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:54:40,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:54:40,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:54:40,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:54:40,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:54:40,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:54:40,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:54:40,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:54:40,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:54:40,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:54:40,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:54:40,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:54:40,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:54:40,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:54:40,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:54:40,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:54:40,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:54:40,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:54:40,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:54:40,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:54:40,868 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:54:40,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:54:40,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:54:40,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:54:40,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:54:40,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:54:40,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:54:40,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:54:40,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:54:40,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:54:40,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:54:40,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:54:40,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:54:40,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:54:40,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:54:40,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:54:40,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:54:40,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:54:40,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:54:40,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:54:40,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:54:40,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:54:40,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:54:40,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:54:40,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:54:40,917 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:54:40,917 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:54:40,917 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:54:40,918 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:54:40,918 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:54:40,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:54:40,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:54:40,918 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:54:40,919 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:54:40,919 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:54:40,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:54:40,919 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:54:40,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:54:40,920 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:54:40,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:54:40,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:54:40,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:54:40,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:54:40,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:54:40,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:54:40,921 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:54:40,922 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:54:40,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:54:40,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:54:40,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:54:40,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:54:40,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:54:40,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:54:40,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:54:40,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:54:40,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:54:40,924 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:54:40,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:54:40,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:54:40,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:54:40,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:54:40,924 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_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 [2021-10-29 04:54:41,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:54:41,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:54:41,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:54:41,235 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:54:41,236 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:54:41,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-10-29 04:54:41,310 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data/1e97158c1/84079f28091b406396bf5f66d1ee1f44/FLAGaba3954d4 [2021-10-29 04:54:41,790 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:54:41,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-10-29 04:54:41,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data/1e97158c1/84079f28091b406396bf5f66d1ee1f44/FLAGaba3954d4 [2021-10-29 04:54:42,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data/1e97158c1/84079f28091b406396bf5f66d1ee1f44 [2021-10-29 04:54:42,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:54:42,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:54:42,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:54:42,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:54:42,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:54:42,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25acf56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42, skipping insertion in model container [2021-10-29 04:54:42,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:54:42,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:54:42,362 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_31337906-aa1f-4a5a-abe9-01179325aec6/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-10-29 04:54:42,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:54:42,374 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:54:42,404 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_31337906-aa1f-4a5a-abe9-01179325aec6/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-10-29 04:54:42,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:54:42,419 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:54:42,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42 WrapperNode [2021-10-29 04:54:42,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:54:42,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:54:42,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:54:42,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:54:42,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:54:42,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:54:42,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:54:42,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:54:42,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:54:42,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:54:42,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:54:42,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:54:42,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (1/1) ... [2021-10-29 04:54:42,523 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:54:42,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:54:42,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:54:42,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:54:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:54:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:54:42,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 04:54:42,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:54:42,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 04:54:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:54:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:54:42,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:54:42,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:54:43,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:54:43,137 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-29 04:54:43,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:54:43 BoogieIcfgContainer [2021-10-29 04:54:43,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:54:43,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:54:43,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:54:43,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:54:43,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:54:42" (1/3) ... [2021-10-29 04:54:43,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ebf26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:54:43, skipping insertion in model container [2021-10-29 04:54:43,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:42" (2/3) ... [2021-10-29 04:54:43,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ebf26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:54:43, skipping insertion in model container [2021-10-29 04:54:43,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:54:43" (3/3) ... [2021-10-29 04:54:43,149 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-10-29 04:54:43,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:54:43,155 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:54:43,254 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:54:43,266 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, mAutomataTypeConcurrency=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 [2021-10-29 04:54:43,267 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:54:43,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 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) [2021-10-29 04:54:43,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:54:43,289 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:54:43,290 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:54:43,299 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:54:43,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:54:43,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1228239283, now seen corresponding path program 1 times [2021-10-29 04:54:43,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:54:43,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208697646] [2021-10-29 04:54:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:43,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:54:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:54:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:43,453 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:54:43,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208697646] [2021-10-29 04:54:43,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208697646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:54:43,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:54:43,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:54:43,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182951674] [2021-10-29 04:54:43,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:54:43,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:54:43,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:54:43,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:54:43,477 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-10-29 04:54:43,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:54:43,493 INFO L93 Difference]: Finished difference Result 42 states and 63 transitions. [2021-10-29 04:54:43,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:54:43,494 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2021-10-29 04:54:43,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:54:43,503 INFO L225 Difference]: With dead ends: 42 [2021-10-29 04:54:43,503 INFO L226 Difference]: Without dead ends: 19 [2021-10-29 04:54:43,505 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:54:43,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-29 04:54:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-29 04:54:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 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) [2021-10-29 04:54:43,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-10-29 04:54:43,536 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 8 [2021-10-29 04:54:43,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:54:43,537 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-10-29 04:54:43,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-10-29 04:54:43,537 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-10-29 04:54:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:54:43,538 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:54:43,538 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:54:43,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:54:43,539 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:54:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:54:43,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1648939227, now seen corresponding path program 1 times [2021-10-29 04:54:43,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:54:43,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545987457] [2021-10-29 04:54:43,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:43,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:54:43,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:54:43,582 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:54:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:54:43,639 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:54:43,639 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:54:43,641 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:54:43,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:54:43,647 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:54:43,649 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:54:43,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:54:43 BoogieIcfgContainer [2021-10-29 04:54:43,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:54:43,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:54:43,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:54:43,674 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:54:43,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:54:43" (3/4) ... [2021-10-29 04:54:43,677 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:54:43,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:54:43,679 INFO L168 Benchmark]: Toolchain (without parser) took 1496.11 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.3 MB in the beginning and 51.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:43,680 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 92.3 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:54:43,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.84 ms. Allocated memory is still 92.3 MB. Free memory was 59.1 MB in the beginning and 48.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:43,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.52 ms. Allocated memory is still 92.3 MB. Free memory was 48.1 MB in the beginning and 46.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:43,682 INFO L168 Benchmark]: Boogie Preprocessor took 46.54 ms. Allocated memory is still 92.3 MB. Free memory was 46.3 MB in the beginning and 44.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:43,683 INFO L168 Benchmark]: RCFGBuilder took 626.55 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 44.8 MB in the beginning and 76.2 MB in the end (delta: -31.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:43,684 INFO L168 Benchmark]: TraceAbstraction took 531.21 ms. Allocated memory is still 111.1 MB. Free memory was 75.4 MB in the beginning and 51.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:54:43,684 INFO L168 Benchmark]: Witness Printer took 4.28 ms. Allocated memory is still 111.1 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:54:43,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 92.3 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 236.84 ms. Allocated memory is still 92.3 MB. Free memory was 59.1 MB in the beginning and 48.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.52 ms. Allocated memory is still 92.3 MB. Free memory was 48.1 MB in the beginning and 46.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.54 ms. Allocated memory is still 92.3 MB. Free memory was 46.3 MB in the beginning and 44.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 626.55 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 44.8 MB in the beginning and 76.2 MB in the end (delta: -31.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 531.21 ms. Allocated memory is still 111.1 MB. Free memory was 75.4 MB in the beginning and 51.7 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.28 ms. Allocated memory is still 111.1 MB. Free memory is still 51.7 MB. 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 100]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of bitwiseAnd at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = __VERIFIER_nondet_float(); [L94] COND TRUE x < -0.0f [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L96] float res = __ieee754_sqrtf(x); [L15] return x != x; [L99] COND TRUE !isnan_float(res) [L100] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-10-29 04:54:43,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/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-b2eff8b [2021-10-29 04:54:46,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:54:46,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:54:46,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:54:46,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:54:46,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:54:46,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:54:46,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:54:46,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:54:46,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:54:46,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:54:46,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:54:46,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:54:46,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:54:46,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:54:46,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:54:46,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:54:46,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:54:46,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:54:46,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:54:46,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:54:46,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:54:46,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:54:46,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:54:46,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:54:46,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:54:46,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:54:46,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:54:46,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:54:46,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:54:46,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:54:46,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:54:46,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:54:46,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:54:46,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:54:46,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:54:46,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:54:46,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:54:46,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:54:46,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:54:46,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:54:46,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:54:46,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:54:46,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:54:46,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:54:46,428 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:54:46,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:54:46,429 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:54:46,429 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:54:46,429 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:54:46,429 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:54:46,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:54:46,431 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:54:46,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:54:46,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:54:46,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:54:46,432 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:54:46,432 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:54:46,432 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:54:46,432 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:54:46,433 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:54:46,433 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:54:46,433 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:54:46,433 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:54:46,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:54:46,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:54:46,434 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:54:46,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:54:46,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:54:46,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:54:46,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:54:46,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:54:46,436 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:54:46,436 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:54:46,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:54:46,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:54:46,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:54:46,437 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_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 [2021-10-29 04:54:46,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:54:46,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:54:46,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:54:46,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:54:46,840 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:54:46,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-10-29 04:54:46,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data/d1eac4346/50a0915f636b435aa41a253f6d05fc76/FLAG5eff76bd6 [2021-10-29 04:54:47,446 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:54:47,447 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-10-29 04:54:47,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data/d1eac4346/50a0915f636b435aa41a253f6d05fc76/FLAG5eff76bd6 [2021-10-29 04:54:47,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/data/d1eac4346/50a0915f636b435aa41a253f6d05fc76 [2021-10-29 04:54:47,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:54:47,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:54:47,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:54:47,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:54:47,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:54:47,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:54:47" (1/1) ... [2021-10-29 04:54:47,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712e1f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:47, skipping insertion in model container [2021-10-29 04:54:47,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:54:47" (1/1) ... [2021-10-29 04:54:47,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:54:47,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:54:48,040 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_31337906-aa1f-4a5a-abe9-01179325aec6/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-10-29 04:54:48,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:54:48,113 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:54:48,175 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_31337906-aa1f-4a5a-abe9-01179325aec6/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-10-29 04:54:48,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:54:48,201 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:54:48,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48 WrapperNode [2021-10-29 04:54:48,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:54:48,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:54:48,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:54:48,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:54:48,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:54:48,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:54:48,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:54:48,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:54:48,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:54:48,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:54:48,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:54:48,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:54:48,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (1/1) ... [2021-10-29 04:54:48,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:54:48,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:54:48,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:54:48,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:54:48,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:54:48,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:54:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-29 04:54:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 04:54:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:54:48,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:54:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-29 04:54:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:54:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:54:49,392 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:54:49,393 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-29 04:54:49,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:54:49 BoogieIcfgContainer [2021-10-29 04:54:49,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:54:49,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:54:49,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:54:49,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:54:49,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:54:47" (1/3) ... [2021-10-29 04:54:49,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d73e4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:54:49, skipping insertion in model container [2021-10-29 04:54:49,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:54:48" (2/3) ... [2021-10-29 04:54:49,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d73e4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:54:49, skipping insertion in model container [2021-10-29 04:54:49,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:54:49" (3/3) ... [2021-10-29 04:54:49,405 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-10-29 04:54:49,414 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:54:49,414 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:54:49,464 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:54:49,469 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, mAutomataTypeConcurrency=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 [2021-10-29 04:54:49,470 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:54:49,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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) [2021-10-29 04:54:49,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:54:49,489 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:54:49,489 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:54:49,490 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:54:49,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:54:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2021-10-29 04:54:49,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:54:49,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298619919] [2021-10-29 04:54:49,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:49,510 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:54:49,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:54:49,517 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:54:49,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:54:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:54:49,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:54:49,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:54:49,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:49,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:54:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:49,839 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:54:49,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298619919] [2021-10-29 04:54:49,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298619919] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:54:49,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:54:49,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:54:49,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638766136] [2021-10-29 04:54:49,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:54:49,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:54:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:54:49,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:54:49,861 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-29 04:54:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:54:49,878 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2021-10-29 04:54:49,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:54:49,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) Word has length 10 [2021-10-29 04:54:49,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:54:49,889 INFO L225 Difference]: With dead ends: 67 [2021-10-29 04:54:49,889 INFO L226 Difference]: Without dead ends: 31 [2021-10-29 04:54:49,892 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:54:49,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-29 04:54:49,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-29 04:54:49,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 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) [2021-10-29 04:54:49,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-10-29 04:54:49,926 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2021-10-29 04:54:49,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:54:49,927 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-10-29 04:54:49,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-29 04:54:49,927 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2021-10-29 04:54:49,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:54:49,928 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:54:49,928 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:54:49,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:54:50,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:54:50,142 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:54:50,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:54:50,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2021-10-29 04:54:50,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:54:50,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671348315] [2021-10-29 04:54:50,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:54:50,144 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:54:50,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:54:50,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:54:50,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:54:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:54:50,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-29 04:54:50,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:54:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:54:59,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:55:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:55:50,931 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:55:50,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671348315] [2021-10-29 04:55:50,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671348315] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:55:50,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:55:50,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-10-29 04:55:50,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468640411] [2021-10-29 04:55:50,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-29 04:55:50,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:55:50,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-29 04:55:50,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=166, Unknown=3, NotChecked=0, Total=210 [2021-10-29 04:55:50,936 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 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) [2021-10-29 04:56:19,294 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-29 04:56:19,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:56:19,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-29 04:56:19,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-29 04:56:19,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:56:19,506 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:184) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:174) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:869) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:783) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) ... 56 more [2021-10-29 04:56:19,511 INFO L168 Benchmark]: Toolchain (without parser) took 91688.57 ms. Allocated memory was 67.1 MB in the beginning and 100.7 MB in the end (delta: 33.6 MB). Free memory was 46.9 MB in the beginning and 63.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:56:19,511 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 67.1 MB. Free memory is still 48.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:56:19,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.29 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:56:19,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.90 ms. Allocated memory is still 67.1 MB. Free memory was 48.6 MB in the beginning and 46.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:56:19,513 INFO L168 Benchmark]: Boogie Preprocessor took 77.99 ms. Allocated memory is still 67.1 MB. Free memory was 46.9 MB in the beginning and 45.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:56:19,514 INFO L168 Benchmark]: RCFGBuilder took 1045.12 ms. Allocated memory was 67.1 MB in the beginning and 100.7 MB in the end (delta: 33.6 MB). Free memory was 45.2 MB in the beginning and 82.0 MB in the end (delta: -36.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:56:19,515 INFO L168 Benchmark]: TraceAbstraction took 90111.65 ms. Allocated memory is still 100.7 MB. Free memory was 82.0 MB in the beginning and 63.9 MB in the end (delta: 18.1 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:56:19,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 67.1 MB. Free memory is still 48.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.29 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: -2.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.90 ms. Allocated memory is still 67.1 MB. Free memory was 48.6 MB in the beginning and 46.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.99 ms. Allocated memory is still 67.1 MB. Free memory was 46.9 MB in the beginning and 45.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1045.12 ms. Allocated memory was 67.1 MB in the beginning and 100.7 MB in the end (delta: 33.6 MB). Free memory was 45.2 MB in the beginning and 82.0 MB in the end (delta: -36.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 90111.65 ms. Allocated memory is still 100.7 MB. Free memory was 82.0 MB in the beginning and 63.9 MB in the end (delta: 18.1 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31337906-aa1f-4a5a-abe9-01179325aec6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...