./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0680b.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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0680b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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 7ac5f25065b71c7d4d531ca5ff8c624387fb5ef3 ........................................................................................................................................................................................................................................................................................................................................ 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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0680b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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 7ac5f25065b71c7d4d531ca5ff8c624387fb5ef3 ...................................................................................................................................................................................................................................................................... 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 02:51:36,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:51:36,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:51:36,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:51:36,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:51:36,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:51:36,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:51:36,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:51:36,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:51:36,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:51:36,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:51:36,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:51:36,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:51:36,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:51:36,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:51:36,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:51:36,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:51:36,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:51:36,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:51:36,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:51:36,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:51:36,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:51:36,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:51:36,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:51:36,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:51:36,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:51:36,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:51:36,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:51:36,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:51:36,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:51:36,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:51:36,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:51:36,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:51:36,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:51:36,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:51:36,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:51:36,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:51:36,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:51:36,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:51:36,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:51:36,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:51:36,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:51:36,769 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:51:36,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:51:36,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:51:36,774 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:51:36,774 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:51:36,775 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:51:36,775 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:51:36,775 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:51:36,775 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:51:36,776 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:51:36,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:51:36,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:51:36,778 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:51:36,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:51:36,778 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:51:36,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:51:36,780 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:51:36,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:51:36,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:51:36,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:51:36,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:51:36,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:51:36,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:51:36,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:51:36,782 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:51:36,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:51:36,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:51:36,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:51:36,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:51:36,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:51:36,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:51:36,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:51:36,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:51:36,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:51:36,786 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:51:36,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:51:36,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:51:36,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:51:36,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:51:36,787 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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ac5f25065b71c7d4d531ca5ff8c624387fb5ef3 [2021-10-16 02:51:37,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:51:37,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:51:37,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:51:37,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:51:37,085 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:51:37,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0680b.c [2021-10-16 02:51:37,177 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data/bac375658/8a685ecd2e384bb2b200fe23f80055c2/FLAGb2debffb1 [2021-10-16 02:51:37,789 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:51:37,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/sv-benchmarks/c/float-newlib/float_req_bl_0680b.c [2021-10-16 02:51:37,798 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data/bac375658/8a685ecd2e384bb2b200fe23f80055c2/FLAGb2debffb1 [2021-10-16 02:51:38,123 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data/bac375658/8a685ecd2e384bb2b200fe23f80055c2 [2021-10-16 02:51:38,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:51:38,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:51:38,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:51:38,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:51:38,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:51:38,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0d426b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38, skipping insertion in model container [2021-10-16 02:51:38,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:51:38,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:51:38,439 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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/sv-benchmarks/c/float-newlib/float_req_bl_0680b.c[5223,5236] [2021-10-16 02:51:38,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:51:38,451 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:51:38,524 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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/sv-benchmarks/c/float-newlib/float_req_bl_0680b.c[5223,5236] [2021-10-16 02:51:38,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:51:38,557 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:51:38,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38 WrapperNode [2021-10-16 02:51:38,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:51:38,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:51:38,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:51:38,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:51:38,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:51:38,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:51:38,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:51:38,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:51:38,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:51:38,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:51:38,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:51:38,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:51:38,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (1/1) ... [2021-10-16 02:51:38,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:51:38,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:51:38,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:51:38,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:51:38,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:51:38,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:51:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:51:38,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:51:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:51:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:51:38,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:51:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:51:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 02:51:38,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:51:39,762 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:51:39,762 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-16 02:51:39,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:51:39 BoogieIcfgContainer [2021-10-16 02:51:39,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:51:39,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:51:39,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:51:39,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:51:39,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:51:38" (1/3) ... [2021-10-16 02:51:39,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e73e66a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:51:39, skipping insertion in model container [2021-10-16 02:51:39,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:38" (2/3) ... [2021-10-16 02:51:39,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e73e66a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:51:39, skipping insertion in model container [2021-10-16 02:51:39,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:51:39" (3/3) ... [2021-10-16 02:51:39,774 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0680b.c [2021-10-16 02:51:39,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:51:39,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:51:39,823 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:51:39,830 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 02:51:39,830 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:51:39,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.7567567567567568) internal successors, (130), 75 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:39,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:51:39,850 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:39,850 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:51:39,851 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:51:39,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:39,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1676066843, now seen corresponding path program 1 times [2021-10-16 02:51:39,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:39,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93592502] [2021-10-16 02:51:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:39,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:51:40,029 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 02:51:40,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:51:40,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93592502] [2021-10-16 02:51:40,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93592502] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:51:40,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:51:40,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:51:40,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570990637] [2021-10-16 02:51:40,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:51:40,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:51:40,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:51:40,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:51:40,054 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.7567567567567568) internal successors, (130), 75 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:40,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:51:40,090 INFO L93 Difference]: Finished difference Result 151 states and 259 transitions. [2021-10-16 02:51:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:51:40,092 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-16 02:51:40,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:51:40,102 INFO L225 Difference]: With dead ends: 151 [2021-10-16 02:51:40,102 INFO L226 Difference]: Without dead ends: 74 [2021-10-16 02:51:40,105 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 02:51:40,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-16 02:51:40,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-16 02:51:40,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4109589041095891) internal successors, (103), 73 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 103 transitions. [2021-10-16 02:51:40,142 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 103 transitions. Word has length 9 [2021-10-16 02:51:40,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:51:40,142 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 103 transitions. [2021-10-16 02:51:40,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:51:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 103 transitions. [2021-10-16 02:51:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:51:40,144 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:51:40,144 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:51:40,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:51:40,144 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:51:40,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:51:40,145 INFO L82 PathProgramCache]: Analyzing trace with hash -274998322, now seen corresponding path program 1 times [2021-10-16 02:51:40,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:51:40,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782975402] [2021-10-16 02:51:40,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:51:40,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:51:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:51:40,239 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:51:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:51:40,315 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:51:40,316 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:51:40,317 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:51:40,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:51:40,325 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:51:40,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:51:40 BoogieIcfgContainer [2021-10-16 02:51:40,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:51:40,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:51:40,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:51:40,358 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:51:40,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:51:39" (3/4) ... [2021-10-16 02:51:40,361 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:51:40,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:51:40,363 INFO L168 Benchmark]: Toolchain (without parser) took 2233.45 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 63.6 MB in the beginning and 73.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:40,364 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:40,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.17 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 68.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:40,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.64 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 65.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:40,366 INFO L168 Benchmark]: Boogie Preprocessor took 68.48 ms. Allocated memory is still 96.5 MB. Free memory was 65.0 MB in the beginning and 62.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:40,367 INFO L168 Benchmark]: RCFGBuilder took 1035.84 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.3 MB in the beginning and 71.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:51:40,368 INFO L168 Benchmark]: TraceAbstraction took 590.35 ms. Allocated memory is still 117.4 MB. Free memory was 70.8 MB in the beginning and 74.3 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:40,368 INFO L168 Benchmark]: Witness Printer took 4.20 ms. Allocated memory is still 117.4 MB. Free memory is still 73.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:51:40,371 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 96.5 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 428.17 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 68.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.64 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 65.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.48 ms. Allocated memory is still 96.5 MB. Free memory was 65.0 MB in the beginning and 62.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1035.84 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.3 MB in the beginning and 71.3 MB in the end (delta: -9.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 590.35 ms. Allocated memory is still 117.4 MB. Free memory was 70.8 MB in the beginning and 74.3 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.20 ms. Allocated memory is still 117.4 MB. Free memory is still 73.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 230]: 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 229, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 223, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L223] float x = -0.0f; [L224] float y = -0.0f; [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L226] float res = __ieee754_atan2f(y, x); [L229] COND TRUE res != -pi VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L230] reach_error() VAL [aT_atan={5:0}, atanhi_atan={7:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 502.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.9ms, AutomataDifference: 65.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 105 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.8ms SsaConstructionTime, 121.0ms SatisfiabilityAnalysisTime, 54.9ms InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:51:40,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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 02:51:43,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:51:43,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:51:43,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:51:43,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:51:43,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:51:43,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:51:43,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:51:43,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:51:43,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:51:43,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:51:43,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:51:43,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:51:43,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:51:43,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:51:43,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:51:43,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:51:43,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:51:43,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:51:43,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:51:43,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:51:43,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:51:43,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:51:43,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:51:43,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:51:43,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:51:43,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:51:43,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:51:43,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:51:43,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:51:43,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:51:43,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:51:43,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:51:43,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:51:43,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:51:43,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:51:43,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:51:43,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:51:43,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:51:43,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:51:43,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:51:43,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:51:43,200 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:51:43,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:51:43,201 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:51:43,202 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:51:43,202 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:51:43,202 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:51:43,202 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:51:43,203 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:51:43,203 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:51:43,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:51:43,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:51:43,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:51:43,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:51:43,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:51:43,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:51:43,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:51:43,207 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:51:43,207 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:51:43,207 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:51:43,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:51:43,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:51:43,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:51:43,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:51:43,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:51:43,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:51:43,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:51:43,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:51:43,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:51:43,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:51:43,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:51:43,210 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:51:43,210 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:51:43,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:51:43,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:51:43,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:51:43,212 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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ac5f25065b71c7d4d531ca5ff8c624387fb5ef3 [2021-10-16 02:51:43,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:51:43,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:51:43,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:51:43,642 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:51:43,643 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:51:43,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0680b.c [2021-10-16 02:51:43,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data/a9d013458/bf8dafb7e4de41ef8541c9876d96e052/FLAG01e4967a3 [2021-10-16 02:51:44,261 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:51:44,262 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/sv-benchmarks/c/float-newlib/float_req_bl_0680b.c [2021-10-16 02:51:44,273 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data/a9d013458/bf8dafb7e4de41ef8541c9876d96e052/FLAG01e4967a3 [2021-10-16 02:51:44,616 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/data/a9d013458/bf8dafb7e4de41ef8541c9876d96e052 [2021-10-16 02:51:44,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:51:44,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:51:44,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:51:44,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:51:44,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:51:44,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:51:44" (1/1) ... [2021-10-16 02:51:44,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@85b9ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:44, skipping insertion in model container [2021-10-16 02:51:44,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:51:44" (1/1) ... [2021-10-16 02:51:44,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:51:44,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:51:44,907 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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/sv-benchmarks/c/float-newlib/float_req_bl_0680b.c[5223,5236] [2021-10-16 02:51:44,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:51:44,939 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:51:44,995 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_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/sv-benchmarks/c/float-newlib/float_req_bl_0680b.c[5223,5236] [2021-10-16 02:51:44,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:51:45,018 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:51:45,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45 WrapperNode [2021-10-16 02:51:45,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:51:45,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:51:45,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:51:45,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:51:45,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:51:45,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:51:45,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:51:45,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:51:45,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:51:45,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:51:45,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:51:45,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:51:45,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (1/1) ... [2021-10-16 02:51:45,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:51:45,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:51:45,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:51:45,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:51:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-16 02:51:45,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:51:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:51:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 02:51:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:51:45,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:51:45,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:51:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 02:51:45,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:51:45,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:52:06,306 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:52:06,306 INFO L299 CfgBuilder]: Removed 40 assume(true) statements. [2021-10-16 02:52:06,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:06 BoogieIcfgContainer [2021-10-16 02:52:06,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:52:06,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:52:06,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:52:06,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:52:06,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:51:44" (1/3) ... [2021-10-16 02:52:06,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c8d22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:06, skipping insertion in model container [2021-10-16 02:52:06,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:51:45" (2/3) ... [2021-10-16 02:52:06,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c8d22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:52:06, skipping insertion in model container [2021-10-16 02:52:06,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:52:06" (3/3) ... [2021-10-16 02:52:06,317 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0680b.c [2021-10-16 02:52:06,323 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:52:06,324 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:52:06,367 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:52:06,374 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 02:52:06,374 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:52:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 107 states have (on average 1.7009345794392523) internal successors, (182), 108 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:52:06,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:52:06,398 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:52:06,398 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:52:06,399 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:52:06,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:52:06,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1264035265, now seen corresponding path program 1 times [2021-10-16 02:52:06,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:52:06,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [97141058] [2021-10-16 02:52:06,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:52:06,419 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:52:06,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:52:06,423 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:52:06,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:52:06,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:52:06,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:52:06,710 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 02:52:06,718 INFO L168 Benchmark]: Toolchain (without parser) took 22092.16 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.6 MB in the beginning and 39.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:06,718 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 54.5 MB. Free memory is still 35.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:52:06,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.88 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.5 MB in the beginning and 49.7 MB in the end (delta: -18.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:06,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.46 ms. Allocated memory is still 71.3 MB. Free memory was 49.5 MB in the beginning and 46.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:06,721 INFO L168 Benchmark]: Boogie Preprocessor took 100.86 ms. Allocated memory is still 71.3 MB. Free memory was 46.2 MB in the beginning and 42.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:06,722 INFO L168 Benchmark]: RCFGBuilder took 21095.78 ms. Allocated memory is still 71.3 MB. Free memory was 42.9 MB in the beginning and 49.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:06,727 INFO L168 Benchmark]: TraceAbstraction took 403.69 ms. Allocated memory is still 71.3 MB. Free memory was 49.2 MB in the beginning and 39.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:52:06,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 54.5 MB. Free memory is still 35.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 392.88 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.5 MB in the beginning and 49.7 MB in the end (delta: -18.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.46 ms. Allocated memory is still 71.3 MB. Free memory was 49.5 MB in the beginning and 46.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 100.86 ms. Allocated memory is still 71.3 MB. Free memory was 46.2 MB in the beginning and 42.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 21095.78 ms. Allocated memory is still 71.3 MB. Free memory was 42.9 MB in the beginning and 49.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 403.69 ms. Allocated memory is still 71.3 MB. Free memory was 49.2 MB in the beginning and 39.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 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 02:52:06,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7173c1e5-2ce8-40b4-b370-28e9d1cbe521/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...