./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/float_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI --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 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 .............................................................................................................................................................................................................................................. 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_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI --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 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:21:05,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:05,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:05,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:05,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:05,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:05,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:05,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:05,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:05,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:05,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:05,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:05,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:05,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:05,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:05,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:05,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:05,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:05,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:05,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:05,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:05,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:05,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:05,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:05,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:05,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:05,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:05,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:05,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:05,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:05,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:05,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:05,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:05,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:05,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:05,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:05,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:05,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:05,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:05,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:05,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:05,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:21:05,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:05,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:05,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:05,344 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:05,345 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:05,345 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:05,345 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:21:05,346 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:05,346 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:05,346 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:21:05,346 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:21:05,347 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:05,347 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:21:05,347 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:21:05,348 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:21:05,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:05,349 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:21:05,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:21:05,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:21:05,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:05,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:05,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:05,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:05,351 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:21:05,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:21:05,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:05,351 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:05,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:05,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:05,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:05,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:05,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:05,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:05,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:05,354 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:21:05,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:21:05,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:05,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:05,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:05,355 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_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2021-10-11 02:21:05,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:05,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:05,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:05,731 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:05,732 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:05,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-benchs/float_double.c [2021-10-11 02:21:05,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data/c352b9098/fb70a63cba4340e2860c343c13de118d/FLAG363bf83cb [2021-10-11 02:21:06,411 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:21:06,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/sv-benchmarks/c/float-benchs/float_double.c [2021-10-11 02:21:06,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data/c352b9098/fb70a63cba4340e2860c343c13de118d/FLAG363bf83cb [2021-10-11 02:21:06,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data/c352b9098/fb70a63cba4340e2860c343c13de118d [2021-10-11 02:21:06,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:21:06,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:21:06,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:06,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:21:06,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:21:06,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:06" (1/1) ... [2021-10-11 02:21:06,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcfa141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:06, skipping insertion in model container [2021-10-11 02:21:06,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:06" (1/1) ... [2021-10-11 02:21:06,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:21:06,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:06,999 WARN L226 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_b628c075-706d-464a-803e-9c6ece2784b2/sv-benchmarks/c/float-benchs/float_double.c[357,370] [2021-10-11 02:21:07,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:07,027 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:21:07,039 WARN L226 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_b628c075-706d-464a-803e-9c6ece2784b2/sv-benchmarks/c/float-benchs/float_double.c[357,370] [2021-10-11 02:21:07,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:07,057 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:21:07,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07 WrapperNode [2021-10-11 02:21:07,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:07,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:07,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:21:07,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:21:07,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:07,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:21:07,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:21:07,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:21:07,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... [2021-10-11 02:21:07,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:21:07,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:21:07,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:21:07,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:21:07,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:21:07,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:21:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:21:07,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:21:07,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:07,422 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:21:07,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:07 BoogieIcfgContainer [2021-10-11 02:21:07,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:07,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:07,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:07,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:07,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:06" (1/3) ... [2021-10-11 02:21:07,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6325f19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:07, skipping insertion in model container [2021-10-11 02:21:07,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:07" (2/3) ... [2021-10-11 02:21:07,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6325f19c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:07, skipping insertion in model container [2021-10-11 02:21:07,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:07" (3/3) ... [2021-10-11 02:21:07,449 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2021-10-11 02:21:07,478 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:07,481 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:21:07,500 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:21:07,525 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:07,538 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:07,539 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:07,539 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:07,539 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:07,539 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:07,539 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:07,539 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:07,553 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2021-10-11 02:21:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:21:07,565 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:07,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:21:07,566 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:07,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:07,572 INFO L82 PathProgramCache]: Analyzing trace with hash 46290, now seen corresponding path program 1 times [2021-10-11 02:21:07,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:21:07,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995499655] [2021-10-11 02:21:07,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:21:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:07,726 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:07,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:07,811 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:21:07,812 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:21:07,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:21:07,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:07 BoogieIcfgContainer [2021-10-11 02:21:07,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:07,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:07,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:07,843 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:07,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:07" (3/4) ... [2021-10-11 02:21:07,860 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:21:07,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:07,866 INFO L168 Benchmark]: Toolchain (without parser) took 1085.16 ms. Allocated memory is still 121.6 MB. Free memory was 83.7 MB in the beginning and 70.0 MB in the end (delta: 13.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:07,866 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 121.6 MB. Free memory is still 99.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:07,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.25 ms. Allocated memory is still 121.6 MB. Free memory was 83.5 MB in the beginning and 97.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:07,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.15 ms. Allocated memory is still 121.6 MB. Free memory was 97.3 MB in the beginning and 95.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:07,873 INFO L168 Benchmark]: Boogie Preprocessor took 21.59 ms. Allocated memory is still 121.6 MB. Free memory was 95.7 MB in the beginning and 94.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:07,874 INFO L168 Benchmark]: RCFGBuilder took 306.30 ms. Allocated memory is still 121.6 MB. Free memory was 94.7 MB in the beginning and 82.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:07,875 INFO L168 Benchmark]: TraceAbstraction took 414.10 ms. Allocated memory is still 121.6 MB. Free memory was 82.1 MB in the beginning and 70.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:07,876 INFO L168 Benchmark]: Witness Printer took 18.30 ms. Allocated memory is still 121.6 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:07,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 121.6 MB. Free memory is still 99.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.25 ms. Allocated memory is still 121.6 MB. Free memory was 83.5 MB in the beginning and 97.3 MB in the end (delta: -13.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.15 ms. Allocated memory is still 121.6 MB. Free memory was 97.3 MB in the beginning and 95.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.59 ms. Allocated memory is still 121.6 MB. Free memory was 95.7 MB in the beginning and 94.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 306.30 ms. Allocated memory is still 121.6 MB. Free memory was 94.7 MB in the beginning and 82.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 414.10 ms. Allocated memory is still 121.6 MB. Free memory was 82.1 MB in the beginning and 70.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 18.30 ms. Allocated memory is still 121.6 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: 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 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L10] double x = 1e20 + 1.; [L11] float y = x; [L6] COND TRUE !(cond) [L6] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:21:10,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:10,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:10,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:10,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:10,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:10,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:10,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:10,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:10,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:10,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:10,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:10,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:10,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:10,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:10,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:10,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:10,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:10,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:10,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:10,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:10,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:10,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:10,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:10,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:10,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:10,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:10,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:10,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:10,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:10,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:10,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:10,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:10,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:10,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:10,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:10,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:10,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:10,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:10,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:10,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:10,713 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:21:10,758 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:10,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:10,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:10,760 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:10,761 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:10,761 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:10,761 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:10,762 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:10,762 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:10,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:10,765 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:21:10,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:21:10,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:10,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:10,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:10,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:10,767 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:21:10,767 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:21:10,768 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:21:10,768 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:21:10,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:10,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:10,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:10,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:10,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:21:10,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:10,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:10,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:10,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:10,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:10,772 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:21:10,772 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:21:10,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:10,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:10,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:10,774 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_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2021-10-11 02:21:11,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:11,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:11,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:11,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:11,250 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:11,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-benchs/float_double.c [2021-10-11 02:21:11,333 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data/61255e8f6/be3aea43380c451d856cacf84aee915f/FLAGbb4187863 [2021-10-11 02:21:11,911 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:21:11,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/sv-benchmarks/c/float-benchs/float_double.c [2021-10-11 02:21:11,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data/61255e8f6/be3aea43380c451d856cacf84aee915f/FLAGbb4187863 [2021-10-11 02:21:12,263 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/data/61255e8f6/be3aea43380c451d856cacf84aee915f [2021-10-11 02:21:12,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:21:12,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:21:12,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:12,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:21:12,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:21:12,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5697a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12, skipping insertion in model container [2021-10-11 02:21:12,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:21:12,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:12,508 WARN L226 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_b628c075-706d-464a-803e-9c6ece2784b2/sv-benchmarks/c/float-benchs/float_double.c[357,370] [2021-10-11 02:21:12,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:12,544 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:21:12,559 WARN L226 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_b628c075-706d-464a-803e-9c6ece2784b2/sv-benchmarks/c/float-benchs/float_double.c[357,370] [2021-10-11 02:21:12,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:12,586 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:21:12,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12 WrapperNode [2021-10-11 02:21:12,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:12,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:12,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:21:12,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:21:12,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:12,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:21:12,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:21:12,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:21:12,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... [2021-10-11 02:21:12,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:21:12,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:21:12,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:21:12,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:21:12,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:12,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:21:12,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:21:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:21:12,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:21:13,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:13,141 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:21:13,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:13 BoogieIcfgContainer [2021-10-11 02:21:13,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:13,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:13,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:13,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:13,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:12" (1/3) ... [2021-10-11 02:21:13,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a096a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:13, skipping insertion in model container [2021-10-11 02:21:13,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:12" (2/3) ... [2021-10-11 02:21:13,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a096a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:13, skipping insertion in model container [2021-10-11 02:21:13,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:13" (3/3) ... [2021-10-11 02:21:13,152 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2021-10-11 02:21:13,167 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:13,170 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:21:13,182 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:21:13,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:13,207 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:13,207 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:13,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:13,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:13,208 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:13,208 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:13,208 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:21:13,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:21:13,225 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:13,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:21:13,227 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:13,233 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-11 02:21:13,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:13,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62747883] [2021-10-11 02:21:13,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:21:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:13,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:21:13,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:13,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:21:13,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:13,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62747883] [2021-10-11 02:21:13,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:13,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:21:13,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127688943] [2021-10-11 02:21:13,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:13,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:13,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:13,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:13,731 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2021-10-11 02:21:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:13,751 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-11 02:21:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:13,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:21:13,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:13,760 INFO L225 Difference]: With dead ends: 13 [2021-10-11 02:21:13,760 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:21:13,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:13,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:21:13,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:21:13,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:21:13,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:21:13,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-11 02:21:13,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:13,786 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:21:13,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:13,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:21:13,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:21:13,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:21:13,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:21:14,032 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:21:14,033 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:21:14,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:21:14,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:21:14,033 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2021-10-11 02:21:14,034 INFO L258 CegarLoopResult]: At program point L13(lines 8 14) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2021-10-11 02:21:14,034 INFO L262 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2021-10-11 02:21:14,034 INFO L262 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2021-10-11 02:21:14,034 INFO L258 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2021-10-11 02:21:14,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:14 BoogieIcfgContainer [2021-10-11 02:21:14,049 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:14,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:14,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:14,050 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:14,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:13" (3/4) ... [2021-10-11 02:21:14,055 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:21:14,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:21:14,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:21:14,065 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:21:14,066 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:21:14,100 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b628c075-706d-464a-803e-9c6ece2784b2/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:14,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:14,102 INFO L168 Benchmark]: Toolchain (without parser) took 1830.23 ms. Allocated memory is still 60.8 MB. Free memory was 40.5 MB in the beginning and 27.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:14,103 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 60.8 MB. Free memory is still 40.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:14,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.27 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 30.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:14,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.89 ms. Allocated memory is still 60.8 MB. Free memory was 30.5 MB in the beginning and 43.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:14,105 INFO L168 Benchmark]: Boogie Preprocessor took 57.40 ms. Allocated memory is still 60.8 MB. Free memory was 43.7 MB in the beginning and 42.8 MB in the end (delta: 918.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:14,106 INFO L168 Benchmark]: RCFGBuilder took 420.36 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 32.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:14,107 INFO L168 Benchmark]: TraceAbstraction took 904.11 ms. Allocated memory is still 60.8 MB. Free memory was 31.6 MB in the beginning and 29.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:14,107 INFO L168 Benchmark]: Witness Printer took 50.29 ms. Allocated memory is still 60.8 MB. Free memory was 29.3 MB in the beginning and 27.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:14,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 60.8 MB. Free memory is still 40.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.27 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 30.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.89 ms. Allocated memory is still 60.8 MB. Free memory was 30.5 MB in the beginning and 43.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.40 ms. Allocated memory is still 60.8 MB. Free memory was 43.7 MB in the beginning and 42.8 MB in the end (delta: 918.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 420.36 ms. Allocated memory is still 60.8 MB. Free memory was 42.8 MB in the beginning and 32.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 904.11 ms. Allocated memory is still 60.8 MB. Free memory was 31.6 MB in the beginning and 29.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Witness Printer took 50.29 ms. Allocated memory is still 60.8 MB. Free memory was 29.3 MB in the beginning and 27.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 4 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 4 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 proved your program to be correct! Received shutdown request...