./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0833.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_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/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_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/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_16274312-187b-4fd3-901c-c8cae8863850/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 02b9ddfb8f6beacc35d8d8007bb04b4d743995a3 .................................................................................................................................................................................................................................................................................................................................. 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_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/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_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/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_16274312-187b-4fd3-901c-c8cae8863850/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 02b9ddfb8f6beacc35d8d8007bb04b4d743995a3 ...................................................................................................................................................................................................................................................................... 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 02:30:28,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:30:28,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:30:28,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:30:28,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:30:28,981 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:30:28,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:30:28,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:30:28,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:30:28,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:30:28,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:30:28,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:30:28,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:30:28,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:30:28,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:30:28,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:30:28,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:30:29,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:30:29,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:30:29,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:30:29,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:30:29,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:30:29,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:30:29,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:30:29,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:30:29,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:30:29,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:30:29,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:30:29,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:30:29,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:30:29,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:30:29,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:30:29,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:30:29,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:30:29,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:30:29,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:30:29,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:30:29,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:30:29,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:30:29,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:30:29,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:30:29,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:30:29,063 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:30:29,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:30:29,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:30:29,072 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:30:29,072 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:30:29,072 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:30:29,072 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:30:29,073 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:30:29,073 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:30:29,073 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:30:29,073 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:30:29,073 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:30:29,074 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:30:29,078 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:30:29,078 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:30:29,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:30:29,079 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:30:29,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:30:29,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:30:29,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:30:29,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:30:29,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:30:29,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:30:29,081 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:30:29,081 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:30:29,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:30:29,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:30:29,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:30:29,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:30:29,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:30:29,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:29,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:30:29,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:30:29,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:30:29,086 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:30:29,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:30:29,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:30:29,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:30:29,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:30:29,087 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_16274312-187b-4fd3-901c-c8cae8863850/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b9ddfb8f6beacc35d8d8007bb04b4d743995a3 [2021-10-16 02:30:29,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:30:29,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:30:29,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:30:29,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:30:29,395 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:30:29,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2021-10-16 02:30:29,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data/a26486fbd/f113d1ab27cc43e3b7f3ec61327b3061/FLAGd988ee184 [2021-10-16 02:30:30,047 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:30:30,048 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2021-10-16 02:30:30,062 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data/a26486fbd/f113d1ab27cc43e3b7f3ec61327b3061/FLAGd988ee184 [2021-10-16 02:30:30,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data/a26486fbd/f113d1ab27cc43e3b7f3ec61327b3061 [2021-10-16 02:30:30,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:30:30,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:30:30,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:30,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:30:30,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:30:30,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf5141e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30, skipping insertion in model container [2021-10-16 02:30:30,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:30:30,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:30:30,653 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_16274312-187b-4fd3-901c-c8cae8863850/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2021-10-16 02:30:30,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:30,669 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:30:30,711 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_16274312-187b-4fd3-901c-c8cae8863850/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2021-10-16 02:30:30,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:30,728 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:30:30,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30 WrapperNode [2021-10-16 02:30:30,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:30,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:30,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:30:30,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:30:30,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:30,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:30:30,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:30:30,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:30:30,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:30:30,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:30:30,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:30:30,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:30:30,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (1/1) ... [2021-10-16 02:30:30,869 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:30,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:30:30,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:30:30,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:30:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:30:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:30:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:30:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:30:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:30:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:30:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:30:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:30:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 02:30:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:30:31,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:30:31,418 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-16 02:30:31,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:31 BoogieIcfgContainer [2021-10-16 02:30:31,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:30:31,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:30:31,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:30:31,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:30:31,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:30" (1/3) ... [2021-10-16 02:30:31,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d303e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:31, skipping insertion in model container [2021-10-16 02:30:31,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:30" (2/3) ... [2021-10-16 02:30:31,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d303e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:31, skipping insertion in model container [2021-10-16 02:30:31,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:31" (3/3) ... [2021-10-16 02:30:31,430 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833.c [2021-10-16 02:30:31,435 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:30:31,435 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:30:31,500 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:30:31,508 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:30:31,509 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:30:31,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:30:31,542 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:31,543 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:31,543 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:30:31,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:31,549 INFO L82 PathProgramCache]: Analyzing trace with hash -475912761, now seen corresponding path program 1 times [2021-10-16 02:30:31,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:30:31,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458421381] [2021-10-16 02:30:31,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:31,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:30:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:31,771 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 02:30:31,772 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:30:31,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458421381] [2021-10-16 02:30:31,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458421381] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:31,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:31,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:30:31,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155339095] [2021-10-16 02:30:31,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:30:31,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:30:31,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:30:31,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:30:31,803 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:31,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:31,828 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2021-10-16 02:30:31,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:30:31,830 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-16 02:30:31,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:31,840 INFO L225 Difference]: With dead ends: 67 [2021-10-16 02:30:31,840 INFO L226 Difference]: Without dead ends: 32 [2021-10-16 02:30:31,843 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 02:30:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-16 02:30:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-16 02:30:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 31 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2021-10-16 02:30:31,879 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 8 [2021-10-16 02:30:31,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:31,880 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2021-10-16 02:30:31,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2021-10-16 02:30:31,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:30:31,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:31,882 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:31,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:30:31,883 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:30:31,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:31,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1511942534, now seen corresponding path program 1 times [2021-10-16 02:30:31,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:30:31,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115863559] [2021-10-16 02:30:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:31,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:30:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:30:31,981 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:30:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:30:32,086 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:30:32,090 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:30:32,092 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:30:32,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:30:32,102 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:30:32,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:30:32 BoogieIcfgContainer [2021-10-16 02:30:32,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:30:32,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:30:32,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:30:32,164 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:30:32,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:31" (3/4) ... [2021-10-16 02:30:32,169 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:30:32,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:30:32,171 INFO L168 Benchmark]: Toolchain (without parser) took 1772.59 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.4 MB in the beginning and 59.1 MB in the end (delta: 334.0 kB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:32,172 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 48.4 MB in the beginning and 48.4 MB in the end (delta: 38.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:32,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.69 ms. Allocated memory is still 92.3 MB. Free memory was 59.1 MB in the beginning and 65.9 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:32,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.68 ms. Allocated memory is still 92.3 MB. Free memory was 65.9 MB in the beginning and 63.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:32,181 INFO L168 Benchmark]: Boogie Preprocessor took 48.88 ms. Allocated memory is still 92.3 MB. Free memory was 63.7 MB in the beginning and 62.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:32,182 INFO L168 Benchmark]: RCFGBuilder took 567.88 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.9 MB in the beginning and 86.3 MB in the end (delta: -24.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:32,183 INFO L168 Benchmark]: TraceAbstraction took 741.51 ms. Allocated memory is still 111.1 MB. Free memory was 86.3 MB in the beginning and 59.6 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:32,183 INFO L168 Benchmark]: Witness Printer took 5.14 ms. Allocated memory is still 111.1 MB. Free memory was 59.6 MB in the beginning and 59.1 MB in the end (delta: 491.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:32,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 48.4 MB in the beginning and 48.4 MB in the end (delta: 38.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.69 ms. Allocated memory is still 92.3 MB. Free memory was 59.1 MB in the beginning and 65.9 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.68 ms. Allocated memory is still 92.3 MB. Free memory was 65.9 MB in the beginning and 63.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.88 ms. Allocated memory is still 92.3 MB. Free memory was 63.7 MB in the beginning and 62.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 567.88 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 61.9 MB in the beginning and 86.3 MB in the end (delta: -24.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 741.51 ms. Allocated memory is still 111.1 MB. Free memory was 86.3 MB in the beginning and 59.6 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.14 ms. Allocated memory is still 111.1 MB. Free memory was 59.6 MB in the beginning and 59.1 MB in the end (delta: 491.3 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: 133]: 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 132, overapproximation of someUnaryDOUBLEoperation at line 18, overapproximation of bitwiseAnd at line 45, overapproximation of someBinaryArithmeticFLOAToperation at line 49. Possible FailurePath: [L14-L33] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L128] float x = -1.0f / 0.0f; [L36] float y, hi, lo, c, t; [L37] __int32_t k = 0, xsb, sx; [L38] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L41] ieee_float_shape_type gf_u; [L42] gf_u.value = (x) [L43] EXPR gf_u.word [L43] (sx) = gf_u.word [L45] xsb = (sx >> 31) & 1 [L46] hx = sx & 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L48] COND TRUE ((hx) > 0x7f800000L) [L49] return x + x; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L129] float res = __ieee754_expf(x); [L132] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L132] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L133] reach_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={11:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 602.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 22.5ms, AutomataDifference: 59.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 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=34occurred 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: 23.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 24.3ms SsaConstructionTime, 129.8ms SatisfiabilityAnalysisTime, 65.1ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:30:32,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:30:34,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:30:34,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:30:34,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:30:34,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:30:34,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:30:34,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:30:34,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:30:34,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:30:34,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:30:34,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:30:34,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:30:34,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:30:34,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:30:34,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:30:34,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:30:34,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:30:34,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:30:34,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:30:34,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:30:34,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:30:34,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:30:34,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:30:34,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:30:34,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:30:34,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:30:34,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:30:34,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:30:34,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:30:34,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:30:34,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:30:34,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:30:34,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:30:34,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:30:34,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:30:34,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:30:34,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:30:34,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:30:34,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:30:34,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:30:34,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:30:34,865 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:30:34,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:30:34,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:30:34,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:30:34,909 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:30:34,910 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:30:34,910 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:30:34,910 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:30:34,910 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:30:34,910 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:30:34,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:30:34,913 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:30:34,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:30:34,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:30:34,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:30:34,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:30:34,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:30:34,914 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:30:34,914 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:30:34,914 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:30:34,915 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:30:34,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:30:34,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:30:34,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:30:34,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:30:34,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:30:34,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:30:34,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:34,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:30:34,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:30:34,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:30:34,917 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:30:34,917 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:30:34,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:30:34,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:30:34,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:30:34,918 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_16274312-187b-4fd3-901c-c8cae8863850/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b9ddfb8f6beacc35d8d8007bb04b4d743995a3 [2021-10-16 02:30:35,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:30:35,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:30:35,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:30:35,384 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:30:35,386 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:30:35,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2021-10-16 02:30:35,462 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data/2af733e0f/dd0d37d3bab0468b9a19e0592d511aa6/FLAG5f094ad89 [2021-10-16 02:30:36,018 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:30:36,020 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/sv-benchmarks/c/float-newlib/float_req_bl_0833.c [2021-10-16 02:30:36,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data/2af733e0f/dd0d37d3bab0468b9a19e0592d511aa6/FLAG5f094ad89 [2021-10-16 02:30:36,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/data/2af733e0f/dd0d37d3bab0468b9a19e0592d511aa6 [2021-10-16 02:30:36,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:30:36,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:30:36,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:36,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:30:36,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:30:36,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f74da4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36, skipping insertion in model container [2021-10-16 02:30:36,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:30:36,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:30:36,616 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_16274312-187b-4fd3-901c-c8cae8863850/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2021-10-16 02:30:36,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:36,632 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:30:36,735 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_16274312-187b-4fd3-901c-c8cae8863850/sv-benchmarks/c/float-newlib/float_req_bl_0833.c[3348,3361] [2021-10-16 02:30:36,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:36,762 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:30:36,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36 WrapperNode [2021-10-16 02:30:36,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:36,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:36,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:30:36,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:30:36,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,784 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:36,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:30:36,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:30:36,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:30:36,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:30:36,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:30:36,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:30:36,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:30:36,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (1/1) ... [2021-10-16 02:30:36,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:36,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:30:36,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:30:36,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:30:36,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-16 02:30:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:30:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:30:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 02:30:36,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:30:36,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:30:36,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:30:36,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 02:30:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:30:36,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:30:46,375 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:30:46,376 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-16 02:30:46,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:46 BoogieIcfgContainer [2021-10-16 02:30:46,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:30:46,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:30:46,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:30:46,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:30:46,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:36" (1/3) ... [2021-10-16 02:30:46,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eec4e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:46, skipping insertion in model container [2021-10-16 02:30:46,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:36" (2/3) ... [2021-10-16 02:30:46,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eec4e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:46, skipping insertion in model container [2021-10-16 02:30:46,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:46" (3/3) ... [2021-10-16 02:30:46,386 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0833.c [2021-10-16 02:30:46,391 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:30:46,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:30:46,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:30:46,455 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:30:46,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:30:46,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 40 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:46,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:30:46,499 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:46,499 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:46,500 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:30:46,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:46,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1903254750, now seen corresponding path program 1 times [2021-10-16 02:30:46,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:30:46,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311571277] [2021-10-16 02:30:46,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:46,522 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:30:46,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:30:46,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:30:46,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:30:46,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:30:46,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:30:46,855 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 02:30:46,860 INFO L168 Benchmark]: Toolchain (without parser) took 10477.77 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.7 MB in the beginning and 35.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:46,861 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory is still 40.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:46,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.53 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 39.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:46,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.30 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 37.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:46,863 INFO L168 Benchmark]: Boogie Preprocessor took 61.32 ms. Allocated memory is still 58.7 MB. Free memory was 37.5 MB in the beginning and 35.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:46,864 INFO L168 Benchmark]: RCFGBuilder took 9501.50 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.4 MB in the beginning and 45.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:46,865 INFO L168 Benchmark]: TraceAbstraction took 477.81 ms. Allocated memory is still 71.3 MB. Free memory was 44.8 MB in the beginning and 35.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:46,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory is still 40.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 381.53 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 39.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.30 ms. Allocated memory is still 58.7 MB. Free memory was 39.7 MB in the beginning and 37.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.32 ms. Allocated memory is still 58.7 MB. Free memory was 37.5 MB in the beginning and 35.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9501.50 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.4 MB in the beginning and 45.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 477.81 ms. Allocated memory is still 71.3 MB. Free memory was 44.8 MB in the beginning and 35.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 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 02:30:46,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16274312-187b-4fd3-901c-c8cae8863850/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...