./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.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_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/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_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/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_772e2a32-0476-4de0-87e5-8b19abc8a41c/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 4067ad1b598c9ecb9f285b79932b541dc69ac510 ........................................................................................................................................................................................................................................................................................................................................ 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_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/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_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/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_772e2a32-0476-4de0-87e5-8b19abc8a41c/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 4067ad1b598c9ecb9f285b79932b541dc69ac510 ........................................................................................................................................................................................................................................................................... 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 03:18:06,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:18:06,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:18:06,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:18:06,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:18:06,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:18:06,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:18:06,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:18:06,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:18:06,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:18:06,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:18:06,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:18:06,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:18:06,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:18:06,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:18:06,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:18:06,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:18:06,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:18:06,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:18:06,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:18:06,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:18:06,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:18:06,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:18:06,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:18:06,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:18:06,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:18:06,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:18:06,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:18:06,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:18:06,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:18:06,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:18:06,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:18:06,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:18:06,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:18:06,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:18:06,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:18:06,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:18:06,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:18:06,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:18:06,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:18:06,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:18:06,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:18:06,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:18:06,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:18:06,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:18:06,983 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:18:06,983 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:18:06,983 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:18:06,983 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:18:06,984 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:18:06,984 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:18:06,984 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:18:06,986 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:18:06,986 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:18:06,986 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:18:06,987 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:18:06,987 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:18:06,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:18:06,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:18:06,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:18:06,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:18:06,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:18:06,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:18:06,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:18:06,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:18:06,990 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:18:06,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:18:06,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:18:06,991 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:18:06,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:18:06,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:18:06,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:18:06,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:18:06,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:18:06,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:18:06,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:18:06,995 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:18:06,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:18:06,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:18:06,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:18:06,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:18:06,996 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_772e2a32-0476-4de0-87e5-8b19abc8a41c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4067ad1b598c9ecb9f285b79932b541dc69ac510 [2021-10-16 03:18:07,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:18:07,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:18:07,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:18:07,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:18:07,396 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:18:07,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c [2021-10-16 03:18:07,478 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data/268ebb6e2/5a10713ca9064ae1bf9b66f0e4ef8649/FLAG3143bae6d [2021-10-16 03:18:08,138 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:18:08,141 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c [2021-10-16 03:18:08,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data/268ebb6e2/5a10713ca9064ae1bf9b66f0e4ef8649/FLAG3143bae6d [2021-10-16 03:18:08,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data/268ebb6e2/5a10713ca9064ae1bf9b66f0e4ef8649 [2021-10-16 03:18:08,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:18:08,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:18:08,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:18:08,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:18:08,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:18:08,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:08,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc42a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08, skipping insertion in model container [2021-10-16 03:18:08,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:08,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:18:08,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:18:08,789 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_772e2a32-0476-4de0-87e5-8b19abc8a41c/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c[5219,5232] [2021-10-16 03:18:08,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:18:08,805 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:18:08,890 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_772e2a32-0476-4de0-87e5-8b19abc8a41c/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c[5219,5232] [2021-10-16 03:18:08,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:18:08,925 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:18:08,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08 WrapperNode [2021-10-16 03:18:08,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:18:08,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:18:08,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:18:08,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:18:08,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:08,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:18:09,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:18:09,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:18:09,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:18:09,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:18:09,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:18:09,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:18:09,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:18:09,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (1/1) ... [2021-10-16 03:18:09,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:18:09,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:18:09,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:18:09,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:18:09,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:18:09,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:18:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 03:18:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 03:18:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 03:18:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:18:09,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:18:09,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 03:18:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 03:18:09,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:18:10,425 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:18:10,425 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-16 03:18:10,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:18:10 BoogieIcfgContainer [2021-10-16 03:18:10,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:18:10,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:18:10,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:18:10,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:18:10,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:18:08" (1/3) ... [2021-10-16 03:18:10,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c1b05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:18:10, skipping insertion in model container [2021-10-16 03:18:10,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:08" (2/3) ... [2021-10-16 03:18:10,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c1b05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:18:10, skipping insertion in model container [2021-10-16 03:18:10,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:18:10" (3/3) ... [2021-10-16 03:18:10,439 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0680a.c [2021-10-16 03:18:10,445 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:18:10,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:18:10,503 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:18:10,511 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 03:18:10,511 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:18:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.7567567567567568) internal successors, (130), 75 states have internal predecessors, (130), 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 03:18:10,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 03:18:10,536 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:18:10,536 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:18:10,537 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:18:10,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:18:10,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1676066843, now seen corresponding path program 1 times [2021-10-16 03:18:10,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:18:10,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098934131] [2021-10-16 03:18:10,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:18:10,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:18:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:18:10,833 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 03:18:10,833 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:18:10,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098934131] [2021-10-16 03:18:10,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098934131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:18:10,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:18:10,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:18:10,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001796925] [2021-10-16 03:18:10,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:18:10,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:18:10,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:18:10,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:18:10,868 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.7567567567567568) internal successors, (130), 75 states have internal predecessors, (130), 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 03:18:10,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:18:10,914 INFO L93 Difference]: Finished difference Result 151 states and 259 transitions. [2021-10-16 03:18:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:18:10,917 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 03:18:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:18:10,931 INFO L225 Difference]: With dead ends: 151 [2021-10-16 03:18:10,932 INFO L226 Difference]: Without dead ends: 74 [2021-10-16 03:18:10,936 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 03:18:10,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-16 03:18:10,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-16 03:18:10,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4109589041095891) internal successors, (103), 73 states have internal predecessors, (103), 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 03:18:10,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 103 transitions. [2021-10-16 03:18:10,992 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 103 transitions. Word has length 9 [2021-10-16 03:18:10,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:18:10,993 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 103 transitions. [2021-10-16 03:18:10,993 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 03:18:10,993 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 103 transitions. [2021-10-16 03:18:10,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:18:10,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:18:10,995 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:18:10,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:18:10,996 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:18:11,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:18:11,004 INFO L82 PathProgramCache]: Analyzing trace with hash -274998322, now seen corresponding path program 1 times [2021-10-16 03:18:11,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:18:11,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232335700] [2021-10-16 03:18:11,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:18:11,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:18:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:18:11,095 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:18:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:18:11,217 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 03:18:11,221 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:18:11,224 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:18:11,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:18:11,234 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:18:11,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:18:11 BoogieIcfgContainer [2021-10-16 03:18:11,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:18:11,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:18:11,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:18:11,313 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:18:11,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:18:10" (3/4) ... [2021-10-16 03:18:11,319 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 03:18:11,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:18:11,322 INFO L168 Benchmark]: Toolchain (without parser) took 2882.53 ms. Allocated memory is still 111.1 MB. Free memory was 73.3 MB in the beginning and 48.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:11,323 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory was 89.8 MB in the beginning and 89.8 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:18:11,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.42 ms. Allocated memory is still 111.1 MB. Free memory was 73.1 MB in the beginning and 83.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:11,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.05 ms. Allocated memory is still 111.1 MB. Free memory was 83.1 MB in the beginning and 79.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:11,334 INFO L168 Benchmark]: Boogie Preprocessor took 101.78 ms. Allocated memory is still 111.1 MB. Free memory was 79.7 MB in the beginning and 76.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:11,335 INFO L168 Benchmark]: RCFGBuilder took 1305.50 ms. Allocated memory is still 111.1 MB. Free memory was 76.8 MB in the beginning and 82.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:11,336 INFO L168 Benchmark]: TraceAbstraction took 881.42 ms. Allocated memory is still 111.1 MB. Free memory was 82.1 MB in the beginning and 49.0 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:11,337 INFO L168 Benchmark]: Witness Printer took 6.63 ms. Allocated memory is still 111.1 MB. Free memory was 49.0 MB in the beginning and 48.5 MB in the end (delta: 451.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:18:11,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory was 89.8 MB in the beginning and 89.8 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.42 ms. Allocated memory is still 111.1 MB. Free memory was 73.1 MB in the beginning and 83.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.05 ms. Allocated memory is still 111.1 MB. Free memory was 83.1 MB in the beginning and 79.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.78 ms. Allocated memory is still 111.1 MB. Free memory was 79.7 MB in the beginning and 76.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1305.50 ms. Allocated memory is still 111.1 MB. Free memory was 76.8 MB in the beginning and 82.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 881.42 ms. Allocated memory is still 111.1 MB. Free memory was 82.1 MB in the beginning and 49.0 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 6.63 ms. Allocated memory is still 111.1 MB. Free memory was 49.0 MB in the beginning and 48.5 MB in the end (delta: 451.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 228]: 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 227, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 222, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L222] float x = -0.0f; [L223] float y = 0.0f; [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L224] float res = __ieee754_atan2f(y, x); [L227] COND TRUE res != pi VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L228] reach_error() VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 730.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 12.2ms, AutomataDifference: 90.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 105 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=76occurred 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: 38.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.9ms SsaConstructionTime, 147.4ms SatisfiabilityAnalysisTime, 107.6ms 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 [2021-10-16 03:18:11,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/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 03:18:14,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:18:14,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:18:14,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:18:14,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:18:14,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:18:14,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:18:14,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:18:14,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:18:14,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:18:14,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:18:14,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:18:14,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:18:14,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:18:14,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:18:14,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:18:14,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:18:14,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:18:14,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:18:14,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:18:14,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:18:14,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:18:14,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:18:14,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:18:14,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:18:14,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:18:14,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:18:14,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:18:14,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:18:14,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:18:14,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:18:14,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:18:14,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:18:14,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:18:14,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:18:14,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:18:14,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:18:14,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:18:14,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:18:14,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:18:14,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:18:14,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:18:14,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:18:14,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:18:14,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:18:14,335 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:18:14,335 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:18:14,336 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:18:14,336 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:18:14,336 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:18:14,336 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:18:14,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:18:14,337 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:18:14,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:18:14,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:18:14,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:18:14,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:18:14,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:18:14,338 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:18:14,339 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:18:14,339 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:18:14,339 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:18:14,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:18:14,339 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:18:14,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:18:14,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:18:14,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:18:14,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:18:14,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:18:14,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:18:14,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:18:14,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:18:14,341 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:18:14,342 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:18:14,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:18:14,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:18:14,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:18:14,342 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_772e2a32-0476-4de0-87e5-8b19abc8a41c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4067ad1b598c9ecb9f285b79932b541dc69ac510 [2021-10-16 03:18:14,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:18:14,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:18:14,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:18:14,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:18:14,770 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:18:14,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0680a.c [2021-10-16 03:18:14,847 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data/572b60569/b4244dc743874ad4833eb98c0ef52c1a/FLAG4534578ac [2021-10-16 03:18:15,423 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:18:15,424 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c [2021-10-16 03:18:15,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data/572b60569/b4244dc743874ad4833eb98c0ef52c1a/FLAG4534578ac [2021-10-16 03:18:15,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/data/572b60569/b4244dc743874ad4833eb98c0ef52c1a [2021-10-16 03:18:15,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:18:15,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:18:15,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:18:15,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:18:15,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:18:15,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:18:15" (1/1) ... [2021-10-16 03:18:15,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d42a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:15, skipping insertion in model container [2021-10-16 03:18:15,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:18:15" (1/1) ... [2021-10-16 03:18:15,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:18:15,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:18:16,030 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_772e2a32-0476-4de0-87e5-8b19abc8a41c/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c[5219,5232] [2021-10-16 03:18:16,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:18:16,063 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:18:16,115 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_772e2a32-0476-4de0-87e5-8b19abc8a41c/sv-benchmarks/c/float-newlib/float_req_bl_0680a.c[5219,5232] [2021-10-16 03:18:16,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:18:16,138 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:18:16,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16 WrapperNode [2021-10-16 03:18:16,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:18:16,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:18:16,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:18:16,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:18:16,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:18:16,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:18:16,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:18:16,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:18:16,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:18:16,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:18:16,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:18:16,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:18:16,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (1/1) ... [2021-10-16 03:18:16,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:18:16,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:18:16,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:18:16,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:18:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-16 03:18:16,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:18:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:18:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 03:18:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 03:18:16,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:18:16,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:18:16,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 03:18:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 03:18:16,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:18:40,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:18:40,144 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-16 03:18:40,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:18:40 BoogieIcfgContainer [2021-10-16 03:18:40,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:18:40,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:18:40,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:18:40,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:18:40,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:18:15" (1/3) ... [2021-10-16 03:18:40,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f37a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:18:40, skipping insertion in model container [2021-10-16 03:18:40,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:18:16" (2/3) ... [2021-10-16 03:18:40,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f37a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:18:40, skipping insertion in model container [2021-10-16 03:18:40,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:18:40" (3/3) ... [2021-10-16 03:18:40,155 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0680a.c [2021-10-16 03:18:40,160 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:18:40,161 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:18:40,206 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:18:40,212 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 03:18:40,213 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:18:40,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 107 states have (on average 1.7009345794392523) internal successors, (182), 108 states have internal predecessors, (182), 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 03:18:40,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:18:40,239 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:18:40,239 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:18:40,240 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:18:40,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:18:40,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1264035265, now seen corresponding path program 1 times [2021-10-16 03:18:40,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:18:40,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [260383834] [2021-10-16 03:18:40,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:18:40,259 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:18:40,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:18:40,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:18:40,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:18:40,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:18:40,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:18:40,560 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 03:18:40,566 INFO L168 Benchmark]: Toolchain (without parser) took 24792.31 ms. Allocated memory was 54.5 MB in the beginning and 77.6 MB in the end (delta: 23.1 MB). Free memory was 31.1 MB in the beginning and 55.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 489.8 kB. Max. memory is 16.1 GB. [2021-10-16 03:18:40,567 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 36.0 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:18:40,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.90 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 29.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:40,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.33 ms. Allocated memory is still 54.5 MB. Free memory was 29.0 MB in the beginning and 25.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:40,570 INFO L168 Benchmark]: Boogie Preprocessor took 99.09 ms. Allocated memory was 54.5 MB in the beginning and 77.6 MB in the end (delta: 23.1 MB). Free memory was 25.6 MB in the beginning and 57.9 MB in the end (delta: -32.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:40,571 INFO L168 Benchmark]: RCFGBuilder took 23831.03 ms. Allocated memory is still 77.6 MB. Free memory was 57.9 MB in the beginning and 46.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:18:40,572 INFO L168 Benchmark]: TraceAbstraction took 415.84 ms. Allocated memory is still 77.6 MB. Free memory was 45.4 MB in the beginning and 55.0 MB in the end (delta: -9.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:18:40,577 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 36.0 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.90 ms. Allocated memory is still 54.5 MB. Free memory was 30.9 MB in the beginning and 29.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.33 ms. Allocated memory is still 54.5 MB. Free memory was 29.0 MB in the beginning and 25.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.09 ms. Allocated memory was 54.5 MB in the beginning and 77.6 MB in the end (delta: 23.1 MB). Free memory was 25.6 MB in the beginning and 57.9 MB in the end (delta: -32.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 23831.03 ms. Allocated memory is still 77.6 MB. Free memory was 57.9 MB in the beginning and 46.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 415.84 ms. Allocated memory is still 77.6 MB. Free memory was 45.4 MB in the beginning and 55.0 MB in the end (delta: -9.5 MB). There was no memory consumed. 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 03:18:40,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_772e2a32-0476-4de0-87e5-8b19abc8a41c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...