./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16e343603ce2c77f96bc60886d9f0afaa8800572 ......................................................................................................................................................................................................................................................................................................................................................................... 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_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16e343603ce2c77f96bc60886d9f0afaa8800572 ....................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:08:44,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:08:44,982 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:08:45,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:08:45,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:08:45,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:08:45,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:08:45,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:08:45,068 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:08:45,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:08:45,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:08:45,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:08:45,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:08:45,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:08:45,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:08:45,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:08:45,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:08:45,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:08:45,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:08:45,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:08:45,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:08:45,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:08:45,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:08:45,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:08:45,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:08:45,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:08:45,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:08:45,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:08:45,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:08:45,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:08:45,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:08:45,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:08:45,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:08:45,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:08:45,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:08:45,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:08:45,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:08:45,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:08:45,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:08:45,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:08:45,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:08:45,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:08:45,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:08:45,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:08:45,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:08:45,197 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:08:45,198 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:08:45,198 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:08:45,198 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:08:45,199 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:08:45,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:08:45,199 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:08:45,208 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:08:45,208 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:08:45,209 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:08:45,209 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:08:45,209 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:08:45,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:08:45,210 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:08:45,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:08:45,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:08:45,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:08:45,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:08:45,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:08:45,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:08:45,212 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:08:45,213 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:08:45,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:08:45,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:08:45,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:08:45,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:08:45,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:08:45,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:08:45,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:08:45,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:08:45,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:08:45,218 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:08:45,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:08:45,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:08:45,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:08:45,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:08:45,219 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_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16e343603ce2c77f96bc60886d9f0afaa8800572 [2021-10-16 03:08:45,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:08:45,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:08:45,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:08:45,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:08:45,595 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:08:45,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2021-10-16 03:08:45,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data/8f0abfb6a/71e0850bafcf44c484a9b24e0515edf8/FLAGad10d37b3 [2021-10-16 03:08:46,309 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:08:46,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2021-10-16 03:08:46,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data/8f0abfb6a/71e0850bafcf44c484a9b24e0515edf8/FLAGad10d37b3 [2021-10-16 03:08:46,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data/8f0abfb6a/71e0850bafcf44c484a9b24e0515edf8 [2021-10-16 03:08:46,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:08:46,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:08:46,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:08:46,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:08:46,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:08:46,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:08:46" (1/1) ... [2021-10-16 03:08:46,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5def616d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:46, skipping insertion in model container [2021-10-16 03:08:46,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:08:46" (1/1) ... [2021-10-16 03:08:46,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:08:46,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:08:47,097 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_520087c2-6d66-47dd-bfc4-9382b4aff90f/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2021-10-16 03:08:47,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:08:47,140 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:08:47,309 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_520087c2-6d66-47dd-bfc4-9382b4aff90f/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2021-10-16 03:08:47,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:08:47,352 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:08:47,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47 WrapperNode [2021-10-16 03:08:47,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:08:47,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:08:47,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:08:47,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:08:47,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:08:47,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:08:47,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:08:47,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:08:47,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:08:47,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:08:47,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:08:47,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:08:47,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (1/1) ... [2021-10-16 03:08:47,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:08:47,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:08:47,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:08:47,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:08:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:08:47,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:08:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 03:08:47,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 03:08:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 03:08:47,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:08:47,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:08:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 03:08:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 03:08:47,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:08:50,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:08:50,929 INFO L299 CfgBuilder]: Removed 229 assume(true) statements. [2021-10-16 03:08:50,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:08:50 BoogieIcfgContainer [2021-10-16 03:08:50,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:08:50,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:08:50,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:08:50,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:08:50,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:08:46" (1/3) ... [2021-10-16 03:08:50,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116669c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:08:50, skipping insertion in model container [2021-10-16 03:08:50,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:47" (2/3) ... [2021-10-16 03:08:50,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116669c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:08:50, skipping insertion in model container [2021-10-16 03:08:50,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:08:50" (3/3) ... [2021-10-16 03:08:50,946 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2021-10-16 03:08:50,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:08:50,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:08:51,008 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:08:51,016 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:08:51,016 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:08:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 309 states have (on average 1.779935275080906) internal successors, (550), 310 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:08:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 03:08:51,055 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:08:51,055 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:08:51,056 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:08:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:08:51,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1432659510, now seen corresponding path program 1 times [2021-10-16 03:08:51,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:08:51,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832781867] [2021-10-16 03:08:51,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:08:51,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:08:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:08:51,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:08:51,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:08:51,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832781867] [2021-10-16 03:08:51,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832781867] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:08:51,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:08:51,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:08:51,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926232730] [2021-10-16 03:08:51,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:08:51,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:08:51,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:08:51,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:08:51,514 INFO L87 Difference]: Start difference. First operand has 311 states, 309 states have (on average 1.779935275080906) internal successors, (550), 310 states have internal predecessors, (550), 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) [2021-10-16 03:08:51,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:08:51,584 INFO L93 Difference]: Finished difference Result 621 states and 1099 transitions. [2021-10-16 03:08:51,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:08:51,586 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 [2021-10-16 03:08:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:08:51,602 INFO L225 Difference]: With dead ends: 621 [2021-10-16 03:08:51,603 INFO L226 Difference]: Without dead ends: 309 [2021-10-16 03:08:51,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:08:51,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-10-16 03:08:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-10-16 03:08:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.2727272727272727) internal successors, (392), 308 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:08:51,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 392 transitions. [2021-10-16 03:08:51,691 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 392 transitions. Word has length 9 [2021-10-16 03:08:51,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:08:51,692 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 392 transitions. [2021-10-16 03:08:51,692 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) [2021-10-16 03:08:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 392 transitions. [2021-10-16 03:08:51,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:08:51,695 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:08:51,695 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:08:51,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:08:51,696 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:08:51,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:08:51,701 INFO L82 PathProgramCache]: Analyzing trace with hash 288483475, now seen corresponding path program 1 times [2021-10-16 03:08:51,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:08:51,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281392875] [2021-10-16 03:08:51,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:08:51,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:08:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:08:51,960 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:08:52,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:08:52,211 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 03:08:52,211 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:08:52,214 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:08:52,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:08:52,223 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:08:52,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:08:52 BoogieIcfgContainer [2021-10-16 03:08:52,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:08:52,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:08:52,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:08:52,327 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:08:52,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:08:50" (3/4) ... [2021-10-16 03:08:52,339 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 03:08:52,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:08:52,342 INFO L168 Benchmark]: Toolchain (without parser) took 5748.75 ms. Allocated memory was 107.0 MB in the beginning and 192.9 MB in the end (delta: 86.0 MB). Free memory was 76.3 MB in the beginning and 122.7 MB in the end (delta: -46.3 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:52,343 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 107.0 MB. Free memory is still 64.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:08:52,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.54 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 76.3 MB in the beginning and 87.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:52,348 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.88 ms. Allocated memory is still 130.0 MB. Free memory was 87.4 MB in the beginning and 76.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:52,355 INFO L168 Benchmark]: Boogie Preprocessor took 195.82 ms. Allocated memory is still 130.0 MB. Free memory was 76.9 MB in the beginning and 67.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:52,355 INFO L168 Benchmark]: RCFGBuilder took 3224.85 ms. Allocated memory was 130.0 MB in the beginning and 192.9 MB in the end (delta: 62.9 MB). Free memory was 66.4 MB in the beginning and 128.5 MB in the end (delta: -62.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:52,356 INFO L168 Benchmark]: TraceAbstraction took 1389.61 ms. Allocated memory is still 192.9 MB. Free memory was 127.5 MB in the beginning and 122.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:08:52,356 INFO L168 Benchmark]: Witness Printer took 12.46 ms. Allocated memory is still 192.9 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:08:52,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 107.0 MB. Free memory is still 64.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 759.54 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 76.3 MB in the beginning and 87.4 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 157.88 ms. Allocated memory is still 130.0 MB. Free memory was 87.4 MB in the beginning and 76.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 195.82 ms. Allocated memory is still 130.0 MB. Free memory was 76.9 MB in the beginning and 67.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3224.85 ms. Allocated memory was 130.0 MB in the beginning and 192.9 MB in the end (delta: 62.9 MB). Free memory was 66.4 MB in the beginning and 128.5 MB in the end (delta: -62.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1389.61 ms. Allocated memory is still 192.9 MB. Free memory was 127.5 MB in the beginning and 122.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Witness Printer took 12.46 ms. Allocated memory is still 192.9 MB. Free memory is still 122.7 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 629]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 628, overapproximation of someUnaryDOUBLEoperation at line 497, overapproximation of bitwiseAnd at line 591, overapproximation of someUnaryFLOAToperation at line 624, overapproximation of someBinaryArithmeticFLOAToperation at line 596. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L79-L81] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L149] static const int init_jk_krempio[] = {4, 7, 9}; [L151-L155] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L157-L159] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L334-L352] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L354-L360] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L362-L371] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L491-L499] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L624] float x = -0.0f; [L582] float y[2], z = 0.0; [L583] __int32_t n, ix; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={23:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={19:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={18:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={26:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={13:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L586] ieee_float_shape_type gf_u; [L587] gf_u.value = (x) [L588] EXPR gf_u.word [L588] (ix) = gf_u.word [L591] ix &= 0x7fffffff VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={23:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={19:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={18:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={26:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={13:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L592] COND FALSE !(ix <= 0x3f490fda) VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={23:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={19:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={18:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={26:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={13:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L595] COND TRUE !((ix) < 0x7f800000L) [L596] return x - x; [L596] return x - x; VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={23:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={19:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={18:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={26:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={13:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L625] float res = tan_float(x); [L628] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={23:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={19:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={18:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={26:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={13:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] [L628] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L629] reach_error() VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={23:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={19:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={18:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={26:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={13:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 311 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1215.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 15.5ms, AutomataDifference: 114.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 394 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 59.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.7ms SsaConstructionTime, 387.4ms SatisfiabilityAnalysisTime, 164.9ms InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 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 [2021-10-16 03:08:52,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:08:54,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:08:54,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:08:54,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:08:54,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:08:54,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:08:54,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:08:54,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:08:55,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:08:55,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:08:55,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:08:55,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:08:55,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:08:55,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:08:55,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:08:55,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:08:55,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:08:55,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:08:55,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:08:55,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:08:55,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:08:55,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:08:55,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:08:55,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:08:55,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:08:55,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:08:55,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:08:55,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:08:55,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:08:55,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:08:55,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:08:55,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:08:55,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:08:55,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:08:55,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:08:55,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:08:55,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:08:55,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:08:55,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:08:55,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:08:55,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:08:55,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:08:55,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:08:55,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:08:55,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:08:55,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:08:55,086 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:08:55,086 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:08:55,087 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:08:55,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:08:55,088 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:08:55,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:08:55,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:08:55,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:08:55,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:08:55,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:08:55,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:08:55,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:08:55,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:08:55,092 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:08:55,092 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:08:55,092 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:08:55,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:08:55,093 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:08:55,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:08:55,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:08:55,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:08:55,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:08:55,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:08:55,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:08:55,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:08:55,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:08:55,097 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:08:55,097 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:08:55,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:08:55,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:08:55,099 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:08:55,099 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_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16e343603ce2c77f96bc60886d9f0afaa8800572 [2021-10-16 03:08:55,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:08:55,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:08:55,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:08:55,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:08:55,514 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:08:55,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2021-10-16 03:08:55,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data/69a0ab4ad/b176d53acb88458a8c38997d531571fb/FLAG9a2dcfc23 [2021-10-16 03:08:56,274 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:08:56,280 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2021-10-16 03:08:56,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data/69a0ab4ad/b176d53acb88458a8c38997d531571fb/FLAG9a2dcfc23 [2021-10-16 03:08:56,494 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/data/69a0ab4ad/b176d53acb88458a8c38997d531571fb [2021-10-16 03:08:56,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:08:56,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:08:56,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:08:56,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:08:56,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:08:56,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:08:56" (1/1) ... [2021-10-16 03:08:56,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65124ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:56, skipping insertion in model container [2021-10-16 03:08:56,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:08:56" (1/1) ... [2021-10-16 03:08:56,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:08:56,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:08:57,071 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_520087c2-6d66-47dd-bfc4-9382b4aff90f/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2021-10-16 03:08:57,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:08:57,152 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:08:57,302 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_520087c2-6d66-47dd-bfc4-9382b4aff90f/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2021-10-16 03:08:57,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:08:57,371 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:08:57,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57 WrapperNode [2021-10-16 03:08:57,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:08:57,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:08:57,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:08:57,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:08:57,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:08:57,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:08:57,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:08:57,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:08:57,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:08:57,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:08:57,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:08:57,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:08:57,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (1/1) ... [2021-10-16 03:08:57,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:08:57,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:08:57,838 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:08:57,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:08:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:08:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-16 03:08:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:08:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 03:08:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 03:08:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 03:08:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-16 03:08:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:08:57,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:08:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 03:08:57,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:09:55,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:09:55,229 INFO L299 CfgBuilder]: Removed 229 assume(true) statements. [2021-10-16 03:09:55,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:09:55 BoogieIcfgContainer [2021-10-16 03:09:55,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:09:55,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:09:55,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:09:55,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:09:55,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:08:56" (1/3) ... [2021-10-16 03:09:55,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c930af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:09:55, skipping insertion in model container [2021-10-16 03:09:55,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:08:57" (2/3) ... [2021-10-16 03:09:55,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c930af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:09:55, skipping insertion in model container [2021-10-16 03:09:55,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:09:55" (3/3) ... [2021-10-16 03:09:55,243 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2021-10-16 03:09:55,250 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:09:55,250 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:09:55,316 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:09:55,324 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:09:55,325 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:09:55,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 408 states have (on average 1.7205882352941178) internal successors, (702), 409 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:55,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:09:55,369 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:55,370 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:55,371 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:09:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:55,377 INFO L82 PathProgramCache]: Analyzing trace with hash 865940285, now seen corresponding path program 1 times [2021-10-16 03:09:55,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:09:55,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117130141] [2021-10-16 03:09:55,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:55,396 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:09:55,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:09:55,400 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:09:55,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:09:55,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:09:55,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:09:55,762 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-16 03:09:55,768 INFO L168 Benchmark]: Toolchain (without parser) took 59259.84 ms. Allocated memory was 69.2 MB in the beginning and 142.6 MB in the end (delta: 73.4 MB). Free memory was 51.1 MB in the beginning and 75.5 MB in the end (delta: -24.4 MB). Peak memory consumption was 49.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:55,768 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 69.2 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:09:55,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.12 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 51.0 MB in the beginning and 77.2 MB in the end (delta: -26.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:55,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 186.89 ms. Allocated memory is still 96.5 MB. Free memory was 77.2 MB in the beginning and 66.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:55,771 INFO L168 Benchmark]: Boogie Preprocessor took 228.12 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 56.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:55,772 INFO L168 Benchmark]: RCFGBuilder took 57440.60 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 55.8 MB in the beginning and 91.3 MB in the end (delta: -35.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:55,773 INFO L168 Benchmark]: TraceAbstraction took 530.32 ms. Allocated memory is still 142.6 MB. Free memory was 90.5 MB in the beginning and 75.5 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:55,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 69.2 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 864.12 ms. Allocated memory was 69.2 MB in the beginning and 96.5 MB in the end (delta: 27.3 MB). Free memory was 51.0 MB in the beginning and 77.2 MB in the end (delta: -26.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 186.89 ms. Allocated memory is still 96.5 MB. Free memory was 77.2 MB in the beginning and 66.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 228.12 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 56.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 57440.60 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 55.8 MB in the beginning and 91.3 MB in the end (delta: -35.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 530.32 ms. Allocated memory is still 142.6 MB. Free memory was 90.5 MB in the beginning and 75.5 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 03:09:55,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_520087c2-6d66-47dd-bfc4-9382b4aff90f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...