./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.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_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/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_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/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_71168171-81f6-47f4-ac1a-333d80ab465f/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 d0f6d13a759f4ddcf05c9602696acd1e2bc4b5be ..................................................................................................................................................................................................................................................................................................................... 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_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/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_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/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_71168171-81f6-47f4-ac1a-333d80ab465f/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 d0f6d13a759f4ddcf05c9602696acd1e2bc4b5be ...................................................................................................................................................................................................................................................................... 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 02:36:01,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:36:01,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:36:01,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:36:01,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:36:01,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:36:01,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:36:01,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:36:01,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:36:01,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:36:01,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:36:01,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:36:01,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:36:01,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:36:01,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:36:01,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:36:01,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:36:01,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:36:01,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:36:01,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:36:01,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:36:01,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:36:01,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:36:01,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:36:01,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:36:01,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:36:01,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:36:01,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:36:01,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:36:01,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:36:01,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:36:01,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:36:01,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:36:01,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:36:01,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:36:01,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:36:01,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:36:01,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:36:01,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:36:01,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:36:01,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:36:01,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:36:01,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:36:01,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:36:01,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:36:01,919 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:36:01,919 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:36:01,920 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:36:01,920 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:36:01,920 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:36:01,920 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:36:01,920 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:36:01,921 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:36:01,921 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:36:01,921 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:36:01,921 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:36:01,922 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:36:01,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:36:01,923 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:36:01,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:36:01,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:36:01,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:36:01,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:36:01,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:36:01,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:36:01,924 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:36:01,925 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:36:01,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:36:01,925 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:36:01,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:36:01,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:36:01,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:36:01,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:36:01,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:36:01,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:36:01,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:36:01,927 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:36:01,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:36:01,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:36:01,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:36:01,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:36:01,928 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_71168171-81f6-47f4-ac1a-333d80ab465f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f6d13a759f4ddcf05c9602696acd1e2bc4b5be [2021-10-16 02:36:02,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:36:02,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:36:02,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:36:02,301 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:36:02,302 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:36:02,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2021-10-16 02:36:02,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data/41f242d4a/44740098e06c47c087d03e869f7dce8e/FLAG64658e721 [2021-10-16 02:36:03,064 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:36:03,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2021-10-16 02:36:03,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data/41f242d4a/44740098e06c47c087d03e869f7dce8e/FLAG64658e721 [2021-10-16 02:36:03,396 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data/41f242d4a/44740098e06c47c087d03e869f7dce8e [2021-10-16 02:36:03,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:36:03,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:36:03,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:36:03,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:36:03,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:36:03,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9ae41bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03, skipping insertion in model container [2021-10-16 02:36:03,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:36:03,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:36:03,708 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_71168171-81f6-47f4-ac1a-333d80ab465f/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c[2725,2738] [2021-10-16 02:36:03,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:36:03,722 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:36:03,765 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_71168171-81f6-47f4-ac1a-333d80ab465f/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c[2725,2738] [2021-10-16 02:36:03,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:36:03,783 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:36:03,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03 WrapperNode [2021-10-16 02:36:03,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:36:03,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:36:03,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:36:03,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:36:03,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:36:03,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:36:03,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:36:03,847 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:36:03,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:36:03,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:36:03,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:36:03,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:36:03,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (1/1) ... [2021-10-16 02:36:03,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:36:03,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:36:03,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:36:04,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:36:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:36:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:36:04,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:36:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:36:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:36:04,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:36:04,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:36:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:36:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 02:36:04,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:36:04,709 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:36:04,709 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-16 02:36:04,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:36:04 BoogieIcfgContainer [2021-10-16 02:36:04,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:36:04,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:36:04,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:36:04,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:36:04,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:36:03" (1/3) ... [2021-10-16 02:36:04,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753beb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:36:04, skipping insertion in model container [2021-10-16 02:36:04,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:03" (2/3) ... [2021-10-16 02:36:04,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753beb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:36:04, skipping insertion in model container [2021-10-16 02:36:04,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:36:04" (3/3) ... [2021-10-16 02:36:04,728 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2021-10-16 02:36:04,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:36:04,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:36:04,796 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:36:04,804 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 02:36:04,804 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:36:04,822 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 02:36:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:36:04,829 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:36:04,830 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:36:04,830 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:36:04,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:36:04,838 INFO L82 PathProgramCache]: Analyzing trace with hash -2021166095, now seen corresponding path program 1 times [2021-10-16 02:36:04,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:36:04,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017458061] [2021-10-16 02:36:04,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:36:04,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:36:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:36:05,053 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 02:36:05,054 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:36:05,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017458061] [2021-10-16 02:36:05,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017458061] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:36:05,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:36:05,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:36:05,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839092758] [2021-10-16 02:36:05,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:36:05,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:36:05,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:36:05,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:36:05,084 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 02:36:05,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:36:05,105 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2021-10-16 02:36:05,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:36:05,107 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 02:36:05,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:36:05,118 INFO L225 Difference]: With dead ends: 67 [2021-10-16 02:36:05,118 INFO L226 Difference]: Without dead ends: 32 [2021-10-16 02:36:05,121 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 02:36:05,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-16 02:36:05,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-16 02:36:05,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 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 02:36:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-10-16 02:36:05,162 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2021-10-16 02:36:05,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:36:05,163 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-10-16 02:36:05,163 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 02:36:05,164 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2021-10-16 02:36:05,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:36:05,164 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:36:05,165 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:36:05,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:36:05,165 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:36:05,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:36:05,167 INFO L82 PathProgramCache]: Analyzing trace with hash 342564116, now seen corresponding path program 1 times [2021-10-16 02:36:05,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:36:05,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672986560] [2021-10-16 02:36:05,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:36:05,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:36:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:36:05,260 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:36:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:36:05,421 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:36:05,422 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:36:05,430 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:36:05,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:36:05,441 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:36:05,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:36:05 BoogieIcfgContainer [2021-10-16 02:36:05,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:36:05,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:36:05,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:36:05,491 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:36:05,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:36:04" (3/4) ... [2021-10-16 02:36:05,498 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:36:05,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:36:05,502 INFO L168 Benchmark]: Toolchain (without parser) took 2095.79 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 83.0 MB in the beginning and 104.3 MB in the end (delta: -21.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:05,503 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory is still 33.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:36:05,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.68 ms. Allocated memory is still 115.3 MB. Free memory was 82.8 MB in the beginning and 87.1 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:05,507 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.77 ms. Allocated memory is still 115.3 MB. Free memory was 87.1 MB in the beginning and 85.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:05,513 INFO L168 Benchmark]: Boogie Preprocessor took 77.94 ms. Allocated memory is still 115.3 MB. Free memory was 85.0 MB in the beginning and 83.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:36:05,514 INFO L168 Benchmark]: RCFGBuilder took 791.73 ms. Allocated memory is still 115.3 MB. Free memory was 83.3 MB in the beginning and 65.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:05,519 INFO L168 Benchmark]: TraceAbstraction took 771.19 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 65.3 MB in the beginning and 105.1 MB in the end (delta: -39.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:36:05,520 INFO L168 Benchmark]: Witness Printer took 8.24 ms. Allocated memory is still 144.7 MB. Free memory was 105.1 MB in the beginning and 104.3 MB in the end (delta: 804.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:36:05,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory is still 33.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.68 ms. Allocated memory is still 115.3 MB. Free memory was 82.8 MB in the beginning and 87.1 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.77 ms. Allocated memory is still 115.3 MB. Free memory was 87.1 MB in the beginning and 85.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.94 ms. Allocated memory is still 115.3 MB. Free memory was 85.0 MB in the beginning and 83.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 791.73 ms. Allocated memory is still 115.3 MB. Free memory was 83.3 MB in the beginning and 65.7 MB in the end (delta: 17.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 771.19 ms. Allocated memory was 115.3 MB in the beginning and 144.7 MB in the end (delta: 29.4 MB). Free memory was 65.3 MB in the beginning and 105.1 MB in the end (delta: -39.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 8.24 ms. Allocated memory is still 144.7 MB. Free memory was 105.1 MB in the beginning and 104.3 MB in the end (delta: 804.3 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: 125]: 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 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L119] float x = 1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L121] float res = fmod_float(x, y); [L110] return x != x; [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 646.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 12.0ms, AutomataDifference: 56.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 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: 23.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.7ms SsaConstructionTime, 128.2ms SatisfiabilityAnalysisTime, 69.5ms InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 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 02:36:05,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/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 02:36:08,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:36:08,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:36:08,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:36:08,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:36:08,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:36:08,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:36:08,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:36:08,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:36:08,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:36:08,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:36:08,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:36:08,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:36:08,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:36:08,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:36:08,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:36:08,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:36:08,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:36:08,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:36:08,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:36:08,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:36:08,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:36:08,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:36:08,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:36:08,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:36:08,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:36:08,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:36:08,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:36:08,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:36:08,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:36:08,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:36:08,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:36:08,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:36:08,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:36:08,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:36:08,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:36:08,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:36:08,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:36:08,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:36:08,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:36:08,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:36:08,330 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:36:08,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:36:08,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:36:08,373 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:36:08,373 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:36:08,373 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:36:08,374 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:36:08,374 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:36:08,374 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:36:08,374 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:36:08,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:36:08,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:36:08,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:36:08,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:36:08,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:36:08,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:36:08,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:36:08,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:36:08,378 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:36:08,378 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:36:08,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:36:08,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:36:08,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:36:08,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:36:08,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:36:08,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:36:08,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:36:08,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:36:08,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:36:08,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:36:08,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:36:08,381 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:36:08,381 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:36:08,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:36:08,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:36:08,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:36:08,382 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_71168171-81f6-47f4-ac1a-333d80ab465f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f6d13a759f4ddcf05c9602696acd1e2bc4b5be [2021-10-16 02:36:08,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:36:08,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:36:08,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:36:08,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:36:08,778 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:36:08,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2021-10-16 02:36:08,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data/615bae1c5/6873e683472d4913bebe166737f51fac/FLAG8c25788d8 [2021-10-16 02:36:09,351 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:36:09,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2021-10-16 02:36:09,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data/615bae1c5/6873e683472d4913bebe166737f51fac/FLAG8c25788d8 [2021-10-16 02:36:09,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/data/615bae1c5/6873e683472d4913bebe166737f51fac [2021-10-16 02:36:09,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:36:09,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:36:09,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:36:09,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:36:09,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:36:09,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:36:09" (1/1) ... [2021-10-16 02:36:09,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2388e3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:09, skipping insertion in model container [2021-10-16 02:36:09,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:36:09" (1/1) ... [2021-10-16 02:36:09,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:36:09,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:36:09,960 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_71168171-81f6-47f4-ac1a-333d80ab465f/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c[2725,2738] [2021-10-16 02:36:09,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:36:09,973 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:36:10,055 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_71168171-81f6-47f4-ac1a-333d80ab465f/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c[2725,2738] [2021-10-16 02:36:10,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:36:10,073 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:36:10,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10 WrapperNode [2021-10-16 02:36:10,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:36:10,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:36:10,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:36:10,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:36:10,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:36:10,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:36:10,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:36:10,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:36:10,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:36:10,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:36:10,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:36:10,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:36:10,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (1/1) ... [2021-10-16 02:36:10,217 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:36:10,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:36:10,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:36:10,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:36:10,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-16 02:36:10,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:36:10,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:36:10,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 02:36:10,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:36:10,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:36:10,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:36:10,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 02:36:10,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:36:10,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:36:12,961 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:36:12,962 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-16 02:36:12,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:36:12 BoogieIcfgContainer [2021-10-16 02:36:12,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:36:12,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:36:12,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:36:12,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:36:12,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:36:09" (1/3) ... [2021-10-16 02:36:12,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82351e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:36:12, skipping insertion in model container [2021-10-16 02:36:12,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:36:10" (2/3) ... [2021-10-16 02:36:12,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82351e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:36:12, skipping insertion in model container [2021-10-16 02:36:12,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:36:12" (3/3) ... [2021-10-16 02:36:12,973 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2021-10-16 02:36:12,978 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:36:12,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:36:13,026 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:36:13,033 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 02:36:13,033 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:36:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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 02:36:13,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:36:13,053 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:36:13,054 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:36:13,054 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:36:13,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:36:13,060 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2021-10-16 02:36:13,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:36:13,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456363219] [2021-10-16 02:36:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:36:13,075 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:36:13,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:36:13,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:36:13,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:36:13,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:36:13,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:36:13,385 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 02:36:13,389 INFO L168 Benchmark]: Toolchain (without parser) took 3663.53 ms. Allocated memory is still 81.8 MB. Free memory was 46.5 MB in the beginning and 62.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:13,390 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 81.8 MB. Free memory was 63.0 MB in the beginning and 62.9 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:36:13,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.93 ms. Allocated memory is still 81.8 MB. Free memory was 46.3 MB in the beginning and 64.3 MB in the end (delta: -18.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:13,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.36 ms. Allocated memory is still 81.8 MB. Free memory was 64.1 MB in the beginning and 62.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:13,398 INFO L168 Benchmark]: Boogie Preprocessor took 64.99 ms. Allocated memory is still 81.8 MB. Free memory was 62.3 MB in the beginning and 60.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:13,399 INFO L168 Benchmark]: RCFGBuilder took 2762.53 ms. Allocated memory is still 81.8 MB. Free memory was 60.2 MB in the beginning and 44.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:13,399 INFO L168 Benchmark]: TraceAbstraction took 421.58 ms. Allocated memory is still 81.8 MB. Free memory was 44.2 MB in the beginning and 62.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 15.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:36:13,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 81.8 MB. Free memory was 63.0 MB in the beginning and 62.9 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 347.93 ms. Allocated memory is still 81.8 MB. Free memory was 46.3 MB in the beginning and 64.3 MB in the end (delta: -18.0 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.36 ms. Allocated memory is still 81.8 MB. Free memory was 64.1 MB in the beginning and 62.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.99 ms. Allocated memory is still 81.8 MB. Free memory was 62.3 MB in the beginning and 60.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2762.53 ms. Allocated memory is still 81.8 MB. Free memory was 60.2 MB in the beginning and 44.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 421.58 ms. Allocated memory is still 81.8 MB. Free memory was 44.2 MB in the beginning and 62.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 15.3 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 02:36:13,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71168171-81f6-47f4-ac1a-333d80ab465f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...