./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double_range.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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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 001d34650580de0e8f1d5d4a40932476caadcd60 ............................................................................................................................................................................................................................................... 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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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 001d34650580de0e8f1d5d4a40932476caadcd60 ............................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 01:59:26,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:59:26,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:59:26,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:59:26,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:59:26,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:59:26,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:59:26,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:59:26,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:59:26,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:59:26,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:59:26,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:59:26,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:59:26,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:59:26,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:59:26,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:59:26,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:59:26,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:59:26,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:59:26,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:59:26,560 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:59:26,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:59:26,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:59:26,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:59:26,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:59:26,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:59:26,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:59:26,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:59:26,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:59:26,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:59:26,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:59:26,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:59:26,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:59:26,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:59:26,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:59:26,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:59:26,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:59:26,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:59:26,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:59:26,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:59:26,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:59:26,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 01:59:26,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:59:26,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:59:26,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 01:59:26,619 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 01:59:26,619 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 01:59:26,620 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 01:59:26,620 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 01:59:26,623 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 01:59:26,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 01:59:26,624 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 01:59:26,624 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 01:59:26,624 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 01:59:26,624 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 01:59:26,625 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 01:59:26,625 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 01:59:26,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:59:26,626 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:59:26,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 01:59:26,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:59:26,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:59:26,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:59:26,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:59:26,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:59:26,628 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 01:59:26,629 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:59:26,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:59:26,629 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:59:26,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:59:26,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:59:26,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:59:26,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:26,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:59:26,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:59:26,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:59:26,631 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 01:59:26,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 01:59:26,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:59:26,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 01:59:26,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 01:59:26,632 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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 001d34650580de0e8f1d5d4a40932476caadcd60 [2021-10-16 01:59:26,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:59:26,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:59:26,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:59:26,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:59:26,942 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:59:26,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-16 01:59:27,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data/2406349db/9231b213ee714714856837542c6f8b2d/FLAGc8c0f86f3 [2021-10-16 01:59:27,421 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:59:27,422 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-16 01:59:27,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data/2406349db/9231b213ee714714856837542c6f8b2d/FLAGc8c0f86f3 [2021-10-16 01:59:27,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data/2406349db/9231b213ee714714856837542c6f8b2d [2021-10-16 01:59:27,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:59:27,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:59:27,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:27,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:59:27,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:59:27,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:27" (1/1) ... [2021-10-16 01:59:27,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723aa66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:27, skipping insertion in model container [2021-10-16 01:59:27,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:27" (1/1) ... [2021-10-16 01:59:27,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:59:27,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:59:28,019 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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-16 01:59:28,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:28,048 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:59:28,057 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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-16 01:59:28,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:28,070 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:59:28,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28 WrapperNode [2021-10-16 01:59:28,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:28,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:28,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:59:28,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:59:28,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:28,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:59:28,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:59:28,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:59:28,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:59:28,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:59:28,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:59:28,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:59:28,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (1/1) ... [2021-10-16 01:59:28,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:28,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:59:28,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:59:28,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:59:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:59:28,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:59:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 01:59:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:59:28,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:59:28,427 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 01:59:28,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:28 BoogieIcfgContainer [2021-10-16 01:59:28,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:59:28,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:59:28,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:59:28,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:59:28,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:59:27" (1/3) ... [2021-10-16 01:59:28,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459d5a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:28, skipping insertion in model container [2021-10-16 01:59:28,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:28" (2/3) ... [2021-10-16 01:59:28,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459d5a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:28, skipping insertion in model container [2021-10-16 01:59:28,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:28" (3/3) ... [2021-10-16 01:59:28,444 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2021-10-16 01:59:28,456 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:59:28,457 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 01:59:28,519 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 01:59:28,526 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 01:59:28,526 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:59:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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 01:59:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 01:59:28,545 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:28,545 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 01:59:28,546 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:28,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:28,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1643568, now seen corresponding path program 1 times [2021-10-16 01:59:28,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 01:59:28,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206695893] [2021-10-16 01:59:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:28,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 01:59:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 01:59:28,746 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 01:59:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 01:59:28,807 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 01:59:28,811 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 01:59:28,812 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 01:59:28,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 01:59:28,822 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 01:59:28,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:59:28 BoogieIcfgContainer [2021-10-16 01:59:28,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 01:59:28,845 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 01:59:28,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 01:59:28,845 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 01:59:28,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:28" (3/4) ... [2021-10-16 01:59:28,849 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 01:59:28,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 01:59:28,854 INFO L168 Benchmark]: Toolchain (without parser) took 1015.98 ms. Allocated memory is still 104.9 MB. Free memory was 68.0 MB in the beginning and 56.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:28,855 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:59:28,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.84 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 81.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:28,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.26 ms. Allocated memory is still 104.9 MB. Free memory was 81.8 MB in the beginning and 80.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:28,858 INFO L168 Benchmark]: Boogie Preprocessor took 31.21 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 79.5 MB in the end (delta: 900.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:59:28,859 INFO L168 Benchmark]: RCFGBuilder took 278.08 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 69.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:28,861 INFO L168 Benchmark]: TraceAbstraction took 409.82 ms. Allocated memory is still 104.9 MB. Free memory was 69.3 MB in the beginning and 56.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:28,866 INFO L168 Benchmark]: Witness Printer took 4.07 ms. Allocated memory is still 104.9 MB. Free memory was 56.7 MB in the beginning and 56.4 MB in the end (delta: 312.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:59:28,871 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 104.9 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 228.84 ms. Allocated memory is still 104.9 MB. Free memory was 67.8 MB in the beginning and 81.8 MB in the end (delta: -14.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.26 ms. Allocated memory is still 104.9 MB. Free memory was 81.8 MB in the beginning and 80.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.21 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 79.5 MB in the end (delta: 900.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 278.08 ms. Allocated memory is still 104.9 MB. Free memory was 79.5 MB in the beginning and 69.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 409.82 ms. Allocated memory is still 104.9 MB. Free memory was 69.3 MB in the beginning and 56.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.07 ms. Allocated memory is still 104.9 MB. Free memory was 56.7 MB in the beginning and 56.4 MB in the end (delta: 312.0 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: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] COND TRUE x >= -1e307 && x <= 1e307 [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 303.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.0ms SsaConstructionTime, 51.9ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 01:59:28,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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 01:59:31,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 01:59:31,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 01:59:31,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 01:59:31,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 01:59:31,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 01:59:31,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 01:59:31,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 01:59:31,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 01:59:31,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 01:59:31,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 01:59:31,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 01:59:31,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 01:59:31,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 01:59:31,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 01:59:31,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 01:59:31,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 01:59:31,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 01:59:31,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 01:59:31,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 01:59:31,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 01:59:31,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 01:59:31,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 01:59:31,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 01:59:31,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 01:59:31,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 01:59:31,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 01:59:31,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 01:59:31,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 01:59:31,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 01:59:31,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 01:59:31,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 01:59:31,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 01:59:31,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 01:59:31,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 01:59:31,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 01:59:31,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 01:59:31,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 01:59:31,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 01:59:31,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 01:59:31,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 01:59:31,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 01:59:31,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 01:59:31,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 01:59:31,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 01:59:31,640 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 01:59:31,641 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 01:59:31,641 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 01:59:31,641 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 01:59:31,641 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 01:59:31,641 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 01:59:31,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 01:59:31,644 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 01:59:31,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 01:59:31,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 01:59:31,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 01:59:31,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 01:59:31,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 01:59:31,646 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 01:59:31,646 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 01:59:31,646 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 01:59:31,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 01:59:31,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 01:59:31,647 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 01:59:31,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 01:59:31,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 01:59:31,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 01:59:31,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 01:59:31,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:31,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 01:59:31,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 01:59:31,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 01:59:31,649 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 01:59:31,649 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 01:59:31,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 01:59:31,650 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 01:59:31,650 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 01:59:31,650 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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 001d34650580de0e8f1d5d4a40932476caadcd60 [2021-10-16 01:59:32,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 01:59:32,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 01:59:32,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 01:59:32,064 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 01:59:32,065 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 01:59:32,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-16 01:59:32,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data/261c31f85/b3887818eb434187b0290377b6c22f11/FLAGb220d0166 [2021-10-16 01:59:32,679 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 01:59:32,680 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/sv-benchmarks/c/float-benchs/nan_double_range.c [2021-10-16 01:59:32,686 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data/261c31f85/b3887818eb434187b0290377b6c22f11/FLAGb220d0166 [2021-10-16 01:59:33,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/data/261c31f85/b3887818eb434187b0290377b6c22f11 [2021-10-16 01:59:33,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 01:59:33,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 01:59:33,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:33,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 01:59:33,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 01:59:33,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be19232 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33, skipping insertion in model container [2021-10-16 01:59:33,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 01:59:33,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 01:59:33,237 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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-16 01:59:33,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:33,258 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 01:59:33,271 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_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/sv-benchmarks/c/float-benchs/nan_double_range.c[422,435] [2021-10-16 01:59:33,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 01:59:33,291 INFO L208 MainTranslator]: Completed translation [2021-10-16 01:59:33,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33 WrapperNode [2021-10-16 01:59:33,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 01:59:33,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:33,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 01:59:33,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 01:59:33,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 01:59:33,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 01:59:33,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 01:59:33,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 01:59:33,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 01:59:33,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 01:59:33,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 01:59:33,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 01:59:33,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (1/1) ... [2021-10-16 01:59:33,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 01:59:33,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 01:59:33,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 01:59:33,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 01:59:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 01:59:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 01:59:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 01:59:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 01:59:33,651 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 01:59:33,651 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-16 01:59:33,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:33 BoogieIcfgContainer [2021-10-16 01:59:33,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 01:59:33,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 01:59:33,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 01:59:33,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 01:59:33,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:59:33" (1/3) ... [2021-10-16 01:59:33,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4224a408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:33, skipping insertion in model container [2021-10-16 01:59:33,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:59:33" (2/3) ... [2021-10-16 01:59:33,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4224a408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:59:33, skipping insertion in model container [2021-10-16 01:59:33,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:33" (3/3) ... [2021-10-16 01:59:33,663 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2021-10-16 01:59:33,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 01:59:33,668 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 01:59:33,729 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 01:59:33,738 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 01:59:33,739 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 01:59:33,754 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 01:59:33,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 01:59:33,760 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 01:59:33,760 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 01:59:33,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 01:59:33,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 01:59:33,766 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2021-10-16 01:59:33,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 01:59:33,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362266281] [2021-10-16 01:59:33,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 01:59:33,791 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 01:59:33,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 01:59:33,797 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 01:59:33,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 01:59:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 01:59:33,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 01:59:33,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 01:59:34,134 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 01:59:34,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 01:59:34,195 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 01:59:34,196 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 01:59:34,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362266281] [2021-10-16 01:59:34,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362266281] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 01:59:34,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 01:59:34,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 01:59:34,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489139800] [2021-10-16 01:59:34,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 01:59:34,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 01:59:34,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 01:59:34,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:34,224 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 01:59:34,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 01:59:34,249 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-10-16 01:59:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 01:59:34,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 5 [2021-10-16 01:59:34,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 01:59:34,258 INFO L225 Difference]: With dead ends: 18 [2021-10-16 01:59:34,258 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 01:59:34,261 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 01:59:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 01:59:34,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 01:59:34,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 01:59:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 01:59:34,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-10-16 01:59:34,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 01:59:34,284 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 01:59:34,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 01:59:34,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 01:59:34,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 01:59:34,287 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 01:59:34,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 01:59:34,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 01:59:34,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 01:59:34,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:59:34,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 01:59:34,543 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 01:59:34,544 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 01:59:34,544 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 01:59:34,544 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 01:59:34,545 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-10-16 01:59:34,545 INFO L860 garLoopResultBuilder]: At program point L18(lines 10 19) the Hoare annotation is: true [2021-10-16 01:59:34,545 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-16 01:59:34,545 INFO L860 garLoopResultBuilder]: At program point L15-1(lines 15 17) the Hoare annotation is: true [2021-10-16 01:59:34,546 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-10-16 01:59:34,546 INFO L857 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-10-16 01:59:34,550 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 01:59:34,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:59:34 BoogieIcfgContainer [2021-10-16 01:59:34,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 01:59:34,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 01:59:34,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 01:59:34,557 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 01:59:34,557 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:59:33" (3/4) ... [2021-10-16 01:59:34,560 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 01:59:34,569 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 01:59:34,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 01:59:34,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-16 01:59:34,570 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 01:59:34,610 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 01:59:34,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 01:59:34,612 INFO L168 Benchmark]: Toolchain (without parser) took 1537.75 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.4 MB in the beginning and 48.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:34,613 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:59:34,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.14 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 51.1 MB in the end (delta: -18.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:34,614 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.64 ms. Allocated memory is still 67.1 MB. Free memory was 50.9 MB in the beginning and 49.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:34,615 INFO L168 Benchmark]: Boogie Preprocessor took 34.95 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 48.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 01:59:34,616 INFO L168 Benchmark]: RCFGBuilder took 282.62 ms. Allocated memory is still 67.1 MB. Free memory was 48.4 MB in the beginning and 39.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:34,616 INFO L168 Benchmark]: TraceAbstraction took 899.85 ms. Allocated memory is still 67.1 MB. Free memory was 38.9 MB in the beginning and 31.7 MB in the end (delta: 7.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:34,617 INFO L168 Benchmark]: Witness Printer took 54.52 ms. Allocated memory is still 67.1 MB. Free memory was 31.7 MB in the beginning and 48.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 01:59:34,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 217.14 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.2 MB in the beginning and 51.1 MB in the end (delta: -18.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.64 ms. Allocated memory is still 67.1 MB. Free memory was 50.9 MB in the beginning and 49.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.95 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 48.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 282.62 ms. Allocated memory is still 67.1 MB. Free memory was 48.4 MB in the beginning and 39.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 899.85 ms. Allocated memory is still 67.1 MB. Free memory was 38.9 MB in the beginning and 31.7 MB in the end (delta: 7.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Witness Printer took 54.52 ms. Allocated memory is still 67.1 MB. Free memory was 31.7 MB in the beginning and 48.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 4.2 MB. 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 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 822.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.1ms, AutomataDifference: 52.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 42.4ms, InitialAbstractionConstructionTime: 11.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 32.2ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 23.2ms SsaConstructionTime, 40.1ms SatisfiabilityAnalysisTime, 273.1ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 5 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-16 01:59:34,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad93bd8d-a7ea-4f2f-9122-d303af2c0916/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...