./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 ........................................................................................................................................................................................................................................................................................................... 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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 02:29:34,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:34,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:34,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:34,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:34,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:34,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:34,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:34,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:34,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:34,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:34,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:34,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:34,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:34,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:34,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:34,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:34,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:34,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:34,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:34,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:34,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:34,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:34,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:34,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:34,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:34,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:34,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:34,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:34,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:34,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:34,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:34,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:34,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:34,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:34,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:34,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:34,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:34,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:34,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:34,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:34,897 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:34,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:34,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:34,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:34,946 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:34,946 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:34,946 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:34,946 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:34,947 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:34,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:34,953 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:34,954 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:34,954 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:34,955 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:34,955 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:34,955 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:34,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:34,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:34,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:34,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:34,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:34,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:34,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:34,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:34,958 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:34,958 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:34,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:34,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:34,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:34,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:34,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:34,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:34,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:34,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:34,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:34,961 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:34,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:34,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:34,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:34,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:34,962 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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 [2021-10-11 02:29:35,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:35,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:35,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:35,270 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:35,271 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:35,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2021-10-11 02:29:35,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data/997ca9155/512ae4c8e94c4cf0a09104a21a0b68f1/FLAGe9802a087 [2021-10-11 02:29:35,862 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:35,866 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2021-10-11 02:29:35,878 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data/997ca9155/512ae4c8e94c4cf0a09104a21a0b68f1/FLAGe9802a087 [2021-10-11 02:29:36,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data/997ca9155/512ae4c8e94c4cf0a09104a21a0b68f1 [2021-10-11 02:29:36,199 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:36,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:36,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:36,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:36,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:36,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b628e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36, skipping insertion in model container [2021-10-11 02:29:36,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:36,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:36,429 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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c[2154,2167] [2021-10-11 02:29:36,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:36,441 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:36,467 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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c[2154,2167] [2021-10-11 02:29:36,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:36,484 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:36,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36 WrapperNode [2021-10-11 02:29:36,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:36,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:36,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:36,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:36,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:36,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:36,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:36,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:36,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... [2021-10-11 02:29:36,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:36,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:36,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:36,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:36,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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 02:29:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:29:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:29:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:29:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:29:37,454 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:37,455 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 02:29:37,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:37 BoogieIcfgContainer [2021-10-11 02:29:37,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:37,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:37,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:37,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:37,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:36" (1/3) ... [2021-10-11 02:29:37,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32aa9004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:37, skipping insertion in model container [2021-10-11 02:29:37,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:36" (2/3) ... [2021-10-11 02:29:37,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32aa9004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:37, skipping insertion in model container [2021-10-11 02:29:37,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:37" (3/3) ... [2021-10-11 02:29:37,469 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2021-10-11 02:29:37,484 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:37,488 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:29:37,499 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:29:37,539 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:37,540 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:37,540 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:37,540 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:37,541 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:37,541 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:37,541 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:37,541 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:37,557 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2021-10-11 02:29:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:29:37,564 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:37,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:37,565 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:37,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:37,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1433219361, now seen corresponding path program 1 times [2021-10-11 02:29:37,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:37,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385017868] [2021-10-11 02:29:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:37,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:37,724 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 02:29:37,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385017868] [2021-10-11 02:29:37,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:37,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:37,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545758798] [2021-10-11 02:29:37,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:29:37,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:37,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:29:37,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:37,749 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2021-10-11 02:29:37,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:37,767 INFO L93 Difference]: Finished difference Result 35 states and 51 transitions. [2021-10-11 02:29:37,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:29:37,768 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-10-11 02:29:37,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:37,778 INFO L225 Difference]: With dead ends: 35 [2021-10-11 02:29:37,778 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:29:37,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:37,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:29:37,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 02:29:37,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:29:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-11 02:29:37,827 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2021-10-11 02:29:37,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:37,827 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-11 02:29:37,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:29:37,828 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-11 02:29:37,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:29:37,828 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:37,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:37,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:29:37,829 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:37,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:37,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2131701560, now seen corresponding path program 1 times [2021-10-11 02:29:37,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:37,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840267453] [2021-10-11 02:29:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:37,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:37,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:38,010 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:29:38,011 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:38,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:29:38,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:38 BoogieIcfgContainer [2021-10-11 02:29:38,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:38,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:38,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:38,039 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:38,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:37" (3/4) ... [2021-10-11 02:29:38,042 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:29:38,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:38,045 INFO L168 Benchmark]: Toolchain (without parser) took 1842.98 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 61.2 MB in the beginning and 65.5 MB in the end (delta: -4.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:38,045 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 78.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:38,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.21 ms. Allocated memory is still 96.5 MB. Free memory was 61.0 MB in the beginning and 71.7 MB in the end (delta: -10.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:38,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.28 ms. Allocated memory is still 96.5 MB. Free memory was 71.7 MB in the beginning and 69.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:38,048 INFO L168 Benchmark]: Boogie Preprocessor took 29.44 ms. Allocated memory is still 96.5 MB. Free memory was 69.7 MB in the beginning and 68.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:38,049 INFO L168 Benchmark]: RCFGBuilder took 898.98 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 68.3 MB in the beginning and 89.2 MB in the end (delta: -20.8 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:38,049 INFO L168 Benchmark]: TraceAbstraction took 577.76 ms. Allocated memory is still 121.6 MB. Free memory was 88.6 MB in the beginning and 66.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:38,050 INFO L168 Benchmark]: Witness Printer took 4.49 ms. Allocated memory is still 121.6 MB. Free memory was 66.1 MB in the beginning and 65.5 MB in the end (delta: 553.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:38,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 78.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 282.21 ms. Allocated memory is still 96.5 MB. Free memory was 61.0 MB in the beginning and 71.7 MB in the end (delta: -10.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.28 ms. Allocated memory is still 96.5 MB. Free memory was 71.7 MB in the beginning and 69.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.44 ms. Allocated memory is still 96.5 MB. Free memory was 69.7 MB in the beginning and 68.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 898.98 ms. Allocated memory was 96.5 MB in the beginning and 121.6 MB in the end (delta: 25.2 MB). Free memory was 68.3 MB in the beginning and 89.2 MB in the end (delta: -20.8 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 577.76 ms. Allocated memory is still 121.6 MB. Free memory was 88.6 MB in the beginning and 66.1 MB in the end (delta: 22.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.49 ms. Allocated memory is still 121.6 MB. Free memory was 66.1 MB in the beginning and 65.5 MB in the end (delta: 553.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 87]: 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 86, overapproximation of someUnaryDOUBLEoperation at line 81. Possible FailurePath: [L81] double x = -0.0; [L82] double y = 0.0; [L26] __uint32_t msw, lsw; [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L35-L36] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L38-L39] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L41-L42] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L45-L46] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L49] return 0; [L54] COND TRUE __fpclassify_double(x) == 0 [L55] return y; [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L87] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:40,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:40,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:40,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:40,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:40,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:40,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:40,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:40,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:40,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:40,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:40,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:40,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:40,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:40,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:40,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:40,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:40,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:40,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:40,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:40,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:40,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:40,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:40,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:40,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:40,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:40,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:40,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:40,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:40,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:40,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:40,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:40,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:40,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:40,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:40,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:40,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:40,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:40,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:40,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:40,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:40,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:29:40,734 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:40,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:40,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:40,736 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:40,736 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:40,737 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:40,737 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:40,737 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:40,737 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:40,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:40,740 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:40,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:40,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:40,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:40,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:40,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:40,741 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:40,741 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:29:40,741 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:29:40,742 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:40,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:40,742 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:40,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:40,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:40,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:29:40,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:40,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:40,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:40,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:40,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:40,744 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:29:40,744 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:29:40,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:40,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:40,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:40,745 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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 [2021-10-11 02:29:41,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:41,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:41,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:41,169 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:41,173 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:41,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2021-10-11 02:29:41,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data/706dc8d03/6773bb69baf94ddd874e0ca5f0119900/FLAG4bd28b613 [2021-10-11 02:29:41,725 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:41,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2021-10-11 02:29:41,741 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data/706dc8d03/6773bb69baf94ddd874e0ca5f0119900/FLAG4bd28b613 [2021-10-11 02:29:42,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/data/706dc8d03/6773bb69baf94ddd874e0ca5f0119900 [2021-10-11 02:29:42,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:42,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:42,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:42,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:42,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:42,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c958a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42, skipping insertion in model container [2021-10-11 02:29:42,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:42,195 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:42,433 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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c[2154,2167] [2021-10-11 02:29:42,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:42,468 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:42,519 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_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c[2154,2167] [2021-10-11 02:29:42,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:42,544 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:42,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42 WrapperNode [2021-10-11 02:29:42,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:42,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:42,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:42,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:42,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:42,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:42,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:42,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:42,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... [2021-10-11 02:29:42,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:42,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:42,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:42,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:42,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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 02:29:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-11 02:29:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:29:42,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:42,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:29:42,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:42,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:42,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:29:43,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:43,208 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 02:29:43,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:43 BoogieIcfgContainer [2021-10-11 02:29:43,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:43,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:43,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:43,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:43,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:42" (1/3) ... [2021-10-11 02:29:43,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7f377a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:43, skipping insertion in model container [2021-10-11 02:29:43,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:42" (2/3) ... [2021-10-11 02:29:43,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7f377a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:43, skipping insertion in model container [2021-10-11 02:29:43,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:43" (3/3) ... [2021-10-11 02:29:43,218 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2021-10-11 02:29:43,232 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:43,235 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:29:43,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:29:43,282 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:43,283 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:43,283 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:43,283 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:43,283 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:43,283 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:43,284 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:43,284 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:43,296 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2021-10-11 02:29:43,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:29:43,301 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:43,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:43,302 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:43,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:43,308 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2021-10-11 02:29:43,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:43,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073811542] [2021-10-11 02:29:43,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/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 02:29:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:43,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:29:43,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:43,458 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 02:29:43,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:43,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073811542] [2021-10-11 02:29:43,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:43,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:43,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698642566] [2021-10-11 02:29:43,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:29:43,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:43,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:29:43,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:43,481 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2021-10-11 02:29:43,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:43,501 INFO L93 Difference]: Finished difference Result 62 states and 98 transitions. [2021-10-11 02:29:43,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:29:43,502 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:29:43,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:43,511 INFO L225 Difference]: With dead ends: 62 [2021-10-11 02:29:43,511 INFO L226 Difference]: Without dead ends: 29 [2021-10-11 02:29:43,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:43,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-11 02:29:43,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-11 02:29:43,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-10-11 02:29:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2021-10-11 02:29:43,547 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2021-10-11 02:29:43,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:43,548 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2021-10-11 02:29:43,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:29:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2021-10-11 02:29:43,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:29:43,549 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:43,549 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:43,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:29:43,775 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:43,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:43,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2021-10-11 02:29:43,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:43,777 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845813883] [2021-10-11 02:29:43,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:43,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:29:43,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:43,975 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 02:29:43,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:43,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845813883] [2021-10-11 02:29:43,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:43,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:43,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253901011] [2021-10-11 02:29:43,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:43,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:43,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:43,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:43,981 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2021-10-11 02:29:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:44,062 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2021-10-11 02:29:44,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:44,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:29:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:44,064 INFO L225 Difference]: With dead ends: 53 [2021-10-11 02:29:44,065 INFO L226 Difference]: Without dead ends: 44 [2021-10-11 02:29:44,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:44,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-11 02:29:44,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2021-10-11 02:29:44,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:29:44,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2021-10-11 02:29:44,073 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2021-10-11 02:29:44,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:44,074 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2021-10-11 02:29:44,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:44,074 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2021-10-11 02:29:44,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:29:44,075 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:44,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:44,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:29:44,295 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:44,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:44,296 INFO L82 PathProgramCache]: Analyzing trace with hash 502201410, now seen corresponding path program 1 times [2021-10-11 02:29:44,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:44,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661806487] [2021-10-11 02:29:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:44,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:29:44,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:44,543 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 02:29:44,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:44,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661806487] [2021-10-11 02:29:44,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:44,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:44,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620155863] [2021-10-11 02:29:44,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:44,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:44,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:44,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:44,546 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2021-10-11 02:29:44,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:44,673 INFO L93 Difference]: Finished difference Result 61 states and 79 transitions. [2021-10-11 02:29:44,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:44,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-10-11 02:29:44,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:44,675 INFO L225 Difference]: With dead ends: 61 [2021-10-11 02:29:44,676 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 02:29:44,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:44,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 02:29:44,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 30. [2021-10-11 02:29:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-10-11 02:29:44,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-10-11 02:29:44,682 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 12 [2021-10-11 02:29:44,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:44,682 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-11 02:29:44,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:44,683 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2021-10-11 02:29:44,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:29:44,683 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:44,684 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:44,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:29:44,900 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:44,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:44,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1951233721, now seen corresponding path program 1 times [2021-10-11 02:29:44,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:44,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474692620] [2021-10-11 02:29:44,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:44,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:29:44,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:45,028 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 02:29:45,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:45,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474692620] [2021-10-11 02:29:45,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:45,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:45,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315889625] [2021-10-11 02:29:45,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:45,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:45,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:45,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:45,030 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 4 states. [2021-10-11 02:29:45,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:45,082 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2021-10-11 02:29:45,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:45,083 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-10-11 02:29:45,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:45,084 INFO L225 Difference]: With dead ends: 52 [2021-10-11 02:29:45,084 INFO L226 Difference]: Without dead ends: 43 [2021-10-11 02:29:45,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-11 02:29:45,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2021-10-11 02:29:45,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-10-11 02:29:45,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2021-10-11 02:29:45,090 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 13 [2021-10-11 02:29:45,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:45,091 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-10-11 02:29:45,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:45,091 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2021-10-11 02:29:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:29:45,092 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:45,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:45,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:29:45,313 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:45,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:45,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2021-10-11 02:29:45,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:45,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744269369] [2021-10-11 02:29:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:45,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:29:45,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:45,433 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 02:29:45,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:45,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744269369] [2021-10-11 02:29:45,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:45,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:45,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383560195] [2021-10-11 02:29:45,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:45,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:45,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:45,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:45,436 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 4 states. [2021-10-11 02:29:45,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:45,495 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2021-10-11 02:29:45,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:45,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-10-11 02:29:45,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:45,504 INFO L225 Difference]: With dead ends: 52 [2021-10-11 02:29:45,504 INFO L226 Difference]: Without dead ends: 43 [2021-10-11 02:29:45,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:45,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-11 02:29:45,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 30. [2021-10-11 02:29:45,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-10-11 02:29:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-10-11 02:29:45,524 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2021-10-11 02:29:45,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:45,525 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-11 02:29:45,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2021-10-11 02:29:45,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:29:45,527 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:45,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:45,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:29:45,744 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:45,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:45,745 INFO L82 PathProgramCache]: Analyzing trace with hash 874935118, now seen corresponding path program 1 times [2021-10-11 02:29:45,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:45,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593012544] [2021-10-11 02:29:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:45,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:29:45,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:45,914 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 02:29:45,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:45,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593012544] [2021-10-11 02:29:45,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:45,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:45,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855981315] [2021-10-11 02:29:45,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:45,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:45,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:45,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:45,917 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2021-10-11 02:29:46,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,015 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2021-10-11 02:29:46,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:46,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2021-10-11 02:29:46,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:46,017 INFO L225 Difference]: With dead ends: 43 [2021-10-11 02:29:46,017 INFO L226 Difference]: Without dead ends: 29 [2021-10-11 02:29:46,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-11 02:29:46,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-11 02:29:46,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-10-11 02:29:46,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-10-11 02:29:46,023 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2021-10-11 02:29:46,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:46,023 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-10-11 02:29:46,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:46,023 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-10-11 02:29:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:46,024 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:29:46,225 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,225 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2021-10-11 02:29:46,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:46,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569517212] [2021-10-11 02:29:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:46,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:29:46,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:46,392 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 02:29:46,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:46,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569517212] [2021-10-11 02:29:46,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:46,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:46,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079019259] [2021-10-11 02:29:46,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:46,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:46,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:46,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:46,397 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2021-10-11 02:29:46,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,420 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2021-10-11 02:29:46,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:46,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-10-11 02:29:46,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:46,425 INFO L225 Difference]: With dead ends: 39 [2021-10-11 02:29:46,425 INFO L226 Difference]: Without dead ends: 29 [2021-10-11 02:29:46,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 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 02:29:46,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-11 02:29:46,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-11 02:29:46,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-10-11 02:29:46,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-10-11 02:29:46,433 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 18 [2021-10-11 02:29:46,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:46,434 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-10-11 02:29:46,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:46,434 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-10-11 02:29:46,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:46,435 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:29:46,641 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,642 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2021-10-11 02:29:46,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:46,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1701904423] [2021-10-11 02:29:46,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:46,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:29:46,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:46,814 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 02:29:46,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:46,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1701904423] [2021-10-11 02:29:46,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:46,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:29:46,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638213287] [2021-10-11 02:29:46,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:46,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:46,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:46,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:46,817 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 6 states. [2021-10-11 02:29:46,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:46,949 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2021-10-11 02:29:46,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:46,949 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-10-11 02:29:46,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:46,950 INFO L225 Difference]: With dead ends: 41 [2021-10-11 02:29:46,950 INFO L226 Difference]: Without dead ends: 38 [2021-10-11 02:29:46,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:29:46,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-11 02:29:46,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2021-10-11 02:29:46,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:29:46,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-10-11 02:29:46,956 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2021-10-11 02:29:46,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:46,957 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-10-11 02:29:46,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:46,957 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-10-11 02:29:46,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:29:46,958 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:46,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:29:47,177 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1049593954, now seen corresponding path program 1 times [2021-10-11 02:29:47,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:47,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65869766] [2021-10-11 02:29:47,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:29:47,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:47,291 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 02:29:47,291 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:47,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65869766] [2021-10-11 02:29:47,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:47,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337135340] [2021-10-11 02:29:47,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:47,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:47,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:47,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:47,294 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2021-10-11 02:29:47,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,342 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2021-10-11 02:29:47,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:47,348 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-10-11 02:29:47,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,348 INFO L225 Difference]: With dead ends: 51 [2021-10-11 02:29:47,348 INFO L226 Difference]: Without dead ends: 42 [2021-10-11 02:29:47,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:47,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-11 02:29:47,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 27. [2021-10-11 02:29:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-10-11 02:29:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-11 02:29:47,355 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 18 [2021-10-11 02:29:47,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,355 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-11 02:29:47,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-11 02:29:47,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:29:47,356 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:29:47,565 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2021-10-11 02:29:47,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:47,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704557403] [2021-10-11 02:29:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:47,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-11 02:29:47,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:47,830 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:29:47,887 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 02:29:47,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:47,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704557403] [2021-10-11 02:29:47,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:47,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-11 02:29:47,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415212630] [2021-10-11 02:29:47,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:29:47,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:47,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:29:47,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:29:47,891 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2021-10-11 02:29:48,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:48,121 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-11 02:29:48,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:29:48,122 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2021-10-11 02:29:48,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:48,122 INFO L225 Difference]: With dead ends: 27 [2021-10-11 02:29:48,122 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:29:48,123 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-10-11 02:29:48,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:29:48,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:29:48,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:29:48,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:29:48,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-11 02:29:48,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:48,124 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:29:48,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:29:48,124 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:29:48,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:29:48,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:29:48,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:29:48,773 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:29:48,773 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:29:48,773 INFO L262 CegarLoopResult]: For program point L28-1(lines 28 33) no Hoare annotation was computed. [2021-10-11 02:29:48,773 INFO L258 CegarLoopResult]: At program point L28-2(lines 28 33) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= .cse0 ULTIMATE.start_fmax_double_~x))) [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L28-3(lines 25 50) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L28-5(lines 28 33) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L258 CegarLoopResult]: At program point L28-6(lines 28 33) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L28-7(lines 25 50) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L86-2(lines 86 89) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L45(lines 45 49) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L45-1(lines 45 49) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L262 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2021-10-11 02:29:48,774 INFO L258 CegarLoopResult]: At program point L71(lines 62 72) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|) ULTIMATE.start___signbit_double_~msw~1) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))))) (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53)))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) |ULTIMATE.start_main_#t~short15| (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2021-10-11 02:29:48,775 INFO L262 CegarLoopResult]: For program point L38(lines 38 49) no Hoare annotation was computed. [2021-10-11 02:29:48,775 INFO L262 CegarLoopResult]: For program point L38-1(lines 38 49) no Hoare annotation was computed. [2021-10-11 02:29:48,775 INFO L262 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-10-11 02:29:48,775 INFO L262 CegarLoopResult]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2021-10-11 02:29:48,775 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:29:48,775 INFO L258 CegarLoopResult]: At program point L65-2(lines 65 69) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53)))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) |ULTIMATE.start_main_#t~short15| (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2021-10-11 02:29:48,775 INFO L262 CegarLoopResult]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2021-10-11 02:29:48,775 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 87) no Hoare annotation was computed. [2021-10-11 02:29:48,775 INFO L258 CegarLoopResult]: At program point L49(lines 25 50) the Hoare annotation is: (let ((.cse2 (fp.neg (_ +zero 11 53)))) (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (let ((.cse0 (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0)))) (.cse1 (= ULTIMATE.start___fpclassify_double_~x .cse2))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start___fpclassify_double_#res|) .cse1) (and (= (_ bv3 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1))) (= .cse2 ULTIMATE.start_fmax_double_~x))) [2021-10-11 02:29:48,776 INFO L258 CegarLoopResult]: At program point L49-1(lines 25 50) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (let ((.cse0 (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x)) (.cse1 (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53))))) (.cse2 (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x))) (or (and (= (_ bv2 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1 .cse2) (and (= (_ bv3 32) |ULTIMATE.start___fpclassify_double_#res|) .cse0 .cse1 .cse2)))) [2021-10-11 02:29:48,776 INFO L262 CegarLoopResult]: For program point L41(lines 41 49) no Hoare annotation was computed. [2021-10-11 02:29:48,776 INFO L262 CegarLoopResult]: For program point L41-1(lines 41 49) no Hoare annotation was computed. [2021-10-11 02:29:48,776 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:29:48,776 INFO L265 CegarLoopResult]: At program point L91(lines 74 92) the Hoare annotation is: true [2021-10-11 02:29:48,776 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-11 02:29:48,778 INFO L262 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2021-10-11 02:29:48,778 INFO L258 CegarLoopResult]: At program point L59-3(lines 52 60) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (_ +zero 11 53)))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2021-10-11 02:29:48,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,800 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,800 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,800 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,800 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,801 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,801 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,801 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,801 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,802 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,802 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,803 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,803 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,803 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,803 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,803 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,804 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,815 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,815 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,816 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,817 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,819 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,827 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,828 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,829 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,831 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:48 BoogieIcfgContainer [2021-10-11 02:29:48,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:48,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:48,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:48,833 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:48,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:43" (3/4) ... [2021-10-11 02:29:48,837 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:29:48,851 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-11 02:29:48,852 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:29:48,852 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:29:48,853 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:48,879 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == y && ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && 2bv32 == \result) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) || ((3bv32 == \result && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x [2021-10-11 02:29:48,880 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x [2021-10-11 02:29:48,880 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() [2021-10-11 02:29:48,881 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == y && ((((2bv32 == \result && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) || (((3bv32 == \result && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x)) [2021-10-11 02:29:48,881 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\exists v_skolemized_q#valueAsBitvector_9 : bv64 :: v_skolemized_q#valueAsBitvector_9[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() [2021-10-11 02:29:48,923 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cffe5b-a576-479d-9d6d-aef9d4cae9f0/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:48,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:48,924 INFO L168 Benchmark]: Toolchain (without parser) took 6779.70 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.3 MB in the beginning and 56.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:48,925 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:48,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.15 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 31.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:48,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.58 ms. Allocated memory is still 62.9 MB. Free memory was 31.0 MB in the beginning and 29.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:48,926 INFO L168 Benchmark]: Boogie Preprocessor took 35.41 ms. Allocated memory is still 62.9 MB. Free memory was 29.1 MB in the beginning and 27.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:48,927 INFO L168 Benchmark]: RCFGBuilder took 565.27 ms. Allocated memory is still 62.9 MB. Free memory was 27.5 MB in the beginning and 27.7 MB in the end (delta: -272.6 kB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:48,928 INFO L168 Benchmark]: TraceAbstraction took 5621.45 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 27.3 MB in the beginning and 28.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:48,928 INFO L168 Benchmark]: Witness Printer took 89.84 ms. Allocated memory is still 75.5 MB. Free memory was 28.7 MB in the beginning and 56.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:48,931 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 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 399.15 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 31.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.58 ms. Allocated memory is still 62.9 MB. Free memory was 31.0 MB in the beginning and 29.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.41 ms. Allocated memory is still 62.9 MB. Free memory was 29.1 MB in the beginning and 27.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 565.27 ms. Allocated memory is still 62.9 MB. Free memory was 27.5 MB in the beginning and 27.7 MB in the end (delta: -272.6 kB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5621.45 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 27.3 MB in the beginning and 28.7 MB in the end (delta: -1.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 89.84 ms. Allocated memory is still 75.5 MB. Free memory was 28.7 MB in the beginning and 56.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: 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: 65]: Loop Invariant [2021-10-11 02:29:48,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,946 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,946 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,946 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,946 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 25]: Loop Invariant [2021-10-11 02:29:48,947 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,948 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,948 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,948 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,948 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,948 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,949 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,949 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,949 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,949 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: ~Pluszero~LONGDOUBLE() == y && ((((2bv32 == \result && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) || (((3bv32 == \result && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x)) - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 25]: Loop Invariant [2021-10-11 02:29:48,952 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,952 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,952 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,952 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,952 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,955 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-11 02:29:48,955 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && ((((\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw) && 2bv32 == \result) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) || ((3bv32 == \result && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 62]: Loop Invariant [2021-10-11 02:29:48,955 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,956 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,956 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,956 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,956 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,956 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,957 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,957 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,957 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2021-10-11 02:29:48,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,959 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: (((((((((\exists v_skolemized_q#valueAsBitvector_9 : bv64 :: v_skolemized_q#valueAsBitvector_9[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0])) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0 && __signbit_double(res) == 0-aux) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant [2021-10-11 02:29:48,959 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,960 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,961 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-11 02:29:48,961 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64 :: msw == v_skolemized_q#valueAsBitvector_8[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 344 SDtfs, 238 SDslu, 501 SDs, 0 SdLazy, 174 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 10 MinimizatonAttempts, 72 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 257 HoareAnnotationTreeSize, 8 FomulaSimplifications, 413 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 145 ConstructedInterpolants, 8 QuantifiedInterpolants, 6854 SizeOfPredicates, 40 NumberOfNonLiveVariables, 619 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...