./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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 fcc84f5729a405b025bbab75fe7efe2bc29401fd0d2f9c28c1e0558462a5b433 .................................................................................................................................................................................................................................................................................................................................................. 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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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 fcc84f5729a405b025bbab75fe7efe2bc29401fd0d2f9c28c1e0558462a5b433 ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:48:52,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:48:52,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:48:52,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:48:52,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:48:52,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:48:52,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:48:52,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:48:52,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:48:52,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:48:52,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:48:52,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:48:52,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:48:52,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:48:52,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:48:52,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:48:52,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:48:52,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:48:52,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:48:52,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:48:52,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:48:52,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:48:52,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:48:52,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:48:52,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:48:52,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:48:52,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:48:52,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:48:52,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:48:52,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:48:52,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:48:52,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:48:52,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:48:52,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:48:52,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:48:52,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:48:52,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:48:52,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:48:52,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:48:52,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:48:52,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:48:52,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:48:52,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:48:52,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:48:52,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:48:52,274 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:48:52,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:48:52,274 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:48:52,275 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:48:52,275 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:48:52,275 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:48:52,275 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:48:52,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:48:52,277 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:48:52,277 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:48:52,278 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:48:52,278 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:48:52,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:48:52,279 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:48:52,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:48:52,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:48:52,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:48:52,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:48:52,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:48:52,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:48:52,281 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:48:52,281 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:48:52,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:48:52,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:48:52,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:48:52,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:48:52,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:48:52,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:48:52,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:48:52,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:48:52,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:48:52,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:48:52,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:48:52,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:48:52,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:48:52,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:48:52,286 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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc84f5729a405b025bbab75fe7efe2bc29401fd0d2f9c28c1e0558462a5b433 [2021-10-29 04:48:52,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:48:52,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:48:52,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:48:52,597 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:48:52,597 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:48:52,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2021-10-29 04:48:52,677 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data/aa14f040b/dc2655c432b5400da0c06332cf160ff4/FLAGc78a6b2e5 [2021-10-29 04:48:53,154 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:48:53,155 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2021-10-29 04:48:53,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data/aa14f040b/dc2655c432b5400da0c06332cf160ff4/FLAGc78a6b2e5 [2021-10-29 04:48:53,529 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data/aa14f040b/dc2655c432b5400da0c06332cf160ff4 [2021-10-29 04:48:53,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:48:53,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:48:53,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:48:53,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:48:53,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:48:53,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:53,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef716c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53, skipping insertion in model container [2021-10-29 04:48:53,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:53,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:48:53,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:48:53,812 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c[6204,6217] [2021-10-29 04:48:53,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:48:53,824 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:48:53,876 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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c[6204,6217] [2021-10-29 04:48:53,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:48:53,907 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:48:53,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53 WrapperNode [2021-10-29 04:48:53,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:48:53,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:48:53,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:48:53,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:48:53,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:53,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:53,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:48:53,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:48:53,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:48:53,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:48:53,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:53,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:54,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:54,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:54,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:54,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:54,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:54,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:48:54,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:48:54,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:48:54,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:48:54,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (1/1) ... [2021-10-29 04:48:54,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:48:54,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:48:54,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:48:54,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:48:54,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:48:54,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:48:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 04:48:54,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:48:54,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 04:48:54,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:48:54,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:48:54,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:48:54,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-29 04:48:54,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:48:55,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:48:55,186 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-29 04:48:55,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:48:55 BoogieIcfgContainer [2021-10-29 04:48:55,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:48:55,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:48:55,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:48:55,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:48:55,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:48:53" (1/3) ... [2021-10-29 04:48:55,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372b2583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:48:55, skipping insertion in model container [2021-10-29 04:48:55,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:53" (2/3) ... [2021-10-29 04:48:55,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372b2583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:48:55, skipping insertion in model container [2021-10-29 04:48:55,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:48:55" (3/3) ... [2021-10-29 04:48:55,202 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2021-10-29 04:48:55,208 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:48:55,208 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:48:55,264 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:48:55,270 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 04:48:55,271 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:48:55,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 80 states have (on average 1.75) internal successors, (140), 81 states have internal predecessors, (140), 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 04:48:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:48:55,294 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:48:55,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:48:55,295 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:48:55,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:48:55,301 INFO L85 PathProgramCache]: Analyzing trace with hash 382235670, now seen corresponding path program 1 times [2021-10-29 04:48:55,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:48:55,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397116868] [2021-10-29 04:48:55,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:48:55,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:48:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:48:55,528 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 04:48:55,529 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:48:55,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397116868] [2021-10-29 04:48:55,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397116868] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 04:48:55,531 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:48:55,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 04:48:55,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339353617] [2021-10-29 04:48:55,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:48:55,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:48:55,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:48:55,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:48:55,564 INFO L87 Difference]: Start difference. First operand has 82 states, 80 states have (on average 1.75) internal successors, (140), 81 states have internal predecessors, (140), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:48:55,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:48:55,611 INFO L93 Difference]: Finished difference Result 163 states and 279 transitions. [2021-10-29 04:48:55,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:48:55,613 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-29 04:48:55,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:48:55,624 INFO L225 Difference]: With dead ends: 163 [2021-10-29 04:48:55,624 INFO L226 Difference]: Without dead ends: 80 [2021-10-29 04:48:55,627 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 04:48:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-29 04:48:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-29 04:48:55,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 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 04:48:55,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 109 transitions. [2021-10-29 04:48:55,678 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 109 transitions. Word has length 9 [2021-10-29 04:48:55,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:48:55,678 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 109 transitions. [2021-10-29 04:48:55,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:48:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 109 transitions. [2021-10-29 04:48:55,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 04:48:55,680 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:48:55,680 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:48:55,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 04:48:55,680 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:48:55,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:48:55,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2045881791, now seen corresponding path program 1 times [2021-10-29 04:48:55,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:48:55,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695498502] [2021-10-29 04:48:55,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:48:55,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:48:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:48:55,840 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:48:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:48:55,985 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:48:55,986 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:48:55,987 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:48:55,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 04:48:55,994 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:48:55,997 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:48:56,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:48:56 BoogieIcfgContainer [2021-10-29 04:48:56,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:48:56,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:48:56,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:48:56,064 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:48:56,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:48:55" (3/4) ... [2021-10-29 04:48:56,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:48:56,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:48:56,073 INFO L168 Benchmark]: Toolchain (without parser) took 2537.72 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 66.7 MB in the beginning and 64.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:48:56,073 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 83.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:48:56,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.42 ms. Allocated memory is still 109.1 MB. Free memory was 66.5 MB in the beginning and 78.0 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:48:56,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.75 ms. Allocated memory is still 109.1 MB. Free memory was 78.0 MB in the beginning and 74.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:48:56,084 INFO L168 Benchmark]: Boogie Preprocessor took 56.96 ms. Allocated memory is still 109.1 MB. Free memory was 74.7 MB in the beginning and 71.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:48:56,086 INFO L168 Benchmark]: RCFGBuilder took 1144.53 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 71.4 MB in the beginning and 98.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:48:56,086 INFO L168 Benchmark]: TraceAbstraction took 869.58 ms. Allocated memory is still 132.1 MB. Free memory was 98.9 MB in the beginning and 64.0 MB in the end (delta: 34.9 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:48:56,086 INFO L168 Benchmark]: Witness Printer took 5.80 ms. Allocated memory is still 132.1 MB. Free memory is still 64.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:48:56,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 83.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.42 ms. Allocated memory is still 109.1 MB. Free memory was 66.5 MB in the beginning and 78.0 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.75 ms. Allocated memory is still 109.1 MB. Free memory was 78.0 MB in the beginning and 74.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.96 ms. Allocated memory is still 109.1 MB. Free memory was 74.7 MB in the beginning and 71.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1144.53 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 71.4 MB in the beginning and 98.9 MB in the end (delta: -27.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 869.58 ms. Allocated memory is still 132.1 MB. Free memory was 98.9 MB in the beginning and 64.0 MB in the end (delta: 34.9 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.80 ms. Allocated memory is still 132.1 MB. Free memory is still 64.0 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: 258]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L252] double x = 1.0 / 0.0; [L253] double y = 1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi_o_4 VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] reach_error() VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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: 111 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=82occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 04:48:56,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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 04:48:58,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:48:58,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:48:58,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:48:58,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:48:58,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:48:58,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:48:58,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:48:58,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:48:58,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:48:58,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:48:58,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:48:58,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:48:58,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:48:58,625 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:48:58,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:48:58,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:48:58,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:48:58,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:48:58,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:48:58,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:48:58,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:48:58,645 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:48:58,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:48:58,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:48:58,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:48:58,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:48:58,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:48:58,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:48:58,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:48:58,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:48:58,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:48:58,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:48:58,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:48:58,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:48:58,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:48:58,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:48:58,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:48:58,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:48:58,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:48:58,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:48:58,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:48:58,743 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:48:58,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:48:58,744 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:48:58,744 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:48:58,745 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:48:58,745 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:48:58,745 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:48:58,745 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:48:58,746 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:48:58,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:48:58,748 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:48:58,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:48:58,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:48:58,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:48:58,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:48:58,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:48:58,750 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:48:58,750 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:48:58,750 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:48:58,750 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:48:58,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:48:58,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:48:58,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:48:58,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:48:58,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:48:58,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:48:58,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:48:58,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:48:58,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:48:58,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:48:58,753 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:48:58,753 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:48:58,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:48:58,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:48:58,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:48:58,754 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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc84f5729a405b025bbab75fe7efe2bc29401fd0d2f9c28c1e0558462a5b433 [2021-10-29 04:48:59,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:48:59,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:48:59,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:48:59,196 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:48:59,196 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:48:59,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2021-10-29 04:48:59,266 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data/faa51e48e/202a176cf5ce48a2ac0886190b25419a/FLAG0efec2867 [2021-10-29 04:48:59,782 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:48:59,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2021-10-29 04:48:59,790 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data/faa51e48e/202a176cf5ce48a2ac0886190b25419a/FLAG0efec2867 [2021-10-29 04:49:00,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/data/faa51e48e/202a176cf5ce48a2ac0886190b25419a [2021-10-29 04:49:00,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:49:00,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:49:00,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:49:00,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:49:00,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:49:00,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@448159b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00, skipping insertion in model container [2021-10-29 04:49:00,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:49:00,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:49:00,422 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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c[6204,6217] [2021-10-29 04:49:00,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:49:00,456 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:49:00,515 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_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c[6204,6217] [2021-10-29 04:49:00,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:49:00,539 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:49:00,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00 WrapperNode [2021-10-29 04:49:00,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:49:00,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:49:00,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:49:00,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:49:00,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:49:00,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:49:00,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:49:00,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:49:00,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:49:00,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:49:00,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:49:00,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:49:00,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (1/1) ... [2021-10-29 04:49:00,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:49:00,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:49:00,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:49:00,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:49:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 04:49:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 04:49:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:49:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:49:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-29 04:49:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 04:49:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:49:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:49:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 04:49:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:49:40,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:49:40,039 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-29 04:49:40,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:40 BoogieIcfgContainer [2021-10-29 04:49:40,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:49:40,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:49:40,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:49:40,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:49:40,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:49:00" (1/3) ... [2021-10-29 04:49:40,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da206a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:49:40, skipping insertion in model container [2021-10-29 04:49:40,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:49:00" (2/3) ... [2021-10-29 04:49:40,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da206a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:49:40, skipping insertion in model container [2021-10-29 04:49:40,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:40" (3/3) ... [2021-10-29 04:49:40,055 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2021-10-29 04:49:40,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:49:40,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 04:49:40,121 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:49:40,127 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 04:49:40,128 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 04:49:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 111 states have (on average 1.7117117117117118) internal successors, (190), 112 states have internal predecessors, (190), 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 04:49:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:49:40,150 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:40,151 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:40,152 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:49:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2021-10-29 04:49:40,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:49:40,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053845551] [2021-10-29 04:49:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:40,172 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:49:40,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:49:40,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:49:40,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:49:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:40,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:49:40,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:49:40,842 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 04:49:40,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:49:41,070 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 04:49:41,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:49:41,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053845551] [2021-10-29 04:49:41,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053845551] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:49:41,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:41,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:49:41,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3919552] [2021-10-29 04:49:41,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:49:41,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:49:41,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:49:41,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:49:41,113 INFO L87 Difference]: Start difference. First operand has 113 states, 111 states have (on average 1.7117117117117118) internal successors, (190), 112 states have internal predecessors, (190), 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 04:49:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:49:41,146 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2021-10-29 04:49:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:49:41,169 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 04:49:41,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:49:41,179 INFO L225 Difference]: With dead ends: 224 [2021-10-29 04:49:41,184 INFO L226 Difference]: Without dead ends: 110 [2021-10-29 04:49:41,189 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 04:49:41,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-29 04:49:41,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-10-29 04:49:41,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 109 states have internal predecessors, (158), 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 04:49:41,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2021-10-29 04:49:41,241 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2021-10-29 04:49:41,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:49:41,241 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2021-10-29 04:49:41,242 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 04:49:41,242 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2021-10-29 04:49:41,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 04:49:41,242 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:49:41,243 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:49:41,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:49:41,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:49:41,444 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:49:41,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:49:41,445 INFO L85 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2021-10-29 04:49:41,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:49:41,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1389124593] [2021-10-29 04:49:41,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:41,452 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:49:41,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:49:41,453 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:49:41,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:49:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:42,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 04:49:42,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:49:42,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2021-10-29 04:49:45,615 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:49:45,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 78 [2021-10-29 04:49:45,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-10-29 04:49:49,566 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 04:49:49,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:49:52,886 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:49:52,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 108 [2021-10-29 04:49:53,075 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-29 04:49:53,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 110 [2021-10-29 04:49:53,122 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:49:53,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1389124593] [2021-10-29 04:49:53,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-10-29 04:49:53,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [549291859] [2021-10-29 04:49:53,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:53,124 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:49:53,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:49:53,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:49:53,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-29 04:49:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:56,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 04:49:56,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@53b3084d [2021-10-29 04:49:56,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568057563] [2021-10-29 04:49:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:49:56,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:49:56,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:49:56,160 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:49:56,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-29 04:49:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:49:56,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-29 04:49:56,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@53b3084d [2021-10-29 04:49:56,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:49:56,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-29 04:49:56,341 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-29 04:49:56,341 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-10-29 04:49:56,349 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:49:56,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:49:56,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-29 04:49:56,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-29 04:49:56,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:49:56,966 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:49:56,971 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:49:56,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:49:56 BoogieIcfgContainer [2021-10-29 04:49:56,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:49:56,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:49:56,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:49:56,996 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:49:56,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:49:40" (3/4) ... [2021-10-29 04:49:57,000 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 04:49:57,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:49:57,002 INFO L168 Benchmark]: Toolchain (without parser) took 56869.93 ms. Allocated memory was 73.4 MB in the beginning and 109.1 MB in the end (delta: 35.7 MB). Free memory was 57.5 MB in the beginning and 83.7 MB in the end (delta: -26.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:57,003 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 54.2 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:49:57,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.28 ms. Allocated memory is still 73.4 MB. Free memory was 57.3 MB in the beginning and 52.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:57,004 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.37 ms. Allocated memory is still 73.4 MB. Free memory was 52.6 MB in the beginning and 49.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:57,005 INFO L168 Benchmark]: Boogie Preprocessor took 79.84 ms. Allocated memory is still 73.4 MB. Free memory was 49.1 MB in the beginning and 45.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:57,006 INFO L168 Benchmark]: RCFGBuilder took 39352.36 ms. Allocated memory is still 73.4 MB. Free memory was 45.6 MB in the beginning and 32.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:57,007 INFO L168 Benchmark]: TraceAbstraction took 16950.34 ms. Allocated memory was 73.4 MB in the beginning and 109.1 MB in the end (delta: 35.7 MB). Free memory was 32.1 MB in the beginning and 84.7 MB in the end (delta: -52.6 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:49:57,007 INFO L168 Benchmark]: Witness Printer took 4.88 ms. Allocated memory is still 109.1 MB. Free memory is still 83.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:49:57,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 54.2 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 407.28 ms. Allocated memory is still 73.4 MB. Free memory was 57.3 MB in the beginning and 52.6 MB in the end (delta: 4.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.37 ms. Allocated memory is still 73.4 MB. Free memory was 52.6 MB in the beginning and 49.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.84 ms. Allocated memory is still 73.4 MB. Free memory was 49.1 MB in the beginning and 45.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 39352.36 ms. Allocated memory is still 73.4 MB. Free memory was 45.6 MB in the beginning and 32.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16950.34 ms. Allocated memory was 73.4 MB in the beginning and 109.1 MB in the end (delta: 35.7 MB). Free memory was 32.1 MB in the beginning and 84.7 MB in the end (delta: -52.6 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.88 ms. Allocated memory is still 109.1 MB. Free memory is still 83.7 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: 258]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L252] double x = 1.0 / 0.0; [L253] double y = 1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi_o_4 [L258] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 0.8s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 29 ConstructedInterpolants, 7 QuantifiedInterpolants, 350 SizeOfPredicates, 14 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 04:49:57,235 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 04:49:57,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bbfd19-0ce1-4565-87d2-de859e4b2df6/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...