./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 411418f84906bedc11fcfc3b7bde3a728b9fa839 .......................................................................................................................................................................................................................................................................................................................................... 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_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 411418f84906bedc11fcfc3b7bde3a728b9fa839 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:30:50,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:30:50,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:30:51,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:30:51,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:30:51,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:30:51,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:30:51,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:30:51,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:30:51,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:30:51,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:30:51,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:30:51,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:30:51,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:30:51,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:30:51,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:30:51,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:30:51,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:30:51,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:30:51,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:30:51,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:30:51,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:30:51,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:30:51,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:30:51,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:30:51,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:30:51,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:30:51,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:30:51,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:30:51,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:30:51,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:30:51,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:30:51,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:30:51,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:30:51,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:30:51,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:30:51,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:30:51,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:30:51,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:30:51,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:30:51,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:30:51,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:30:51,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:30:51,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:30:51,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:30:51,132 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:30:51,132 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:30:51,133 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:30:51,133 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:30:51,133 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:30:51,133 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:30:51,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:30:51,135 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:30:51,135 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:30:51,135 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:30:51,136 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:30:51,136 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:30:51,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:30:51,137 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:30:51,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:30:51,138 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:30:51,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:30:51,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:30:51,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:30:51,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:30:51,139 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:30:51,139 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:30:51,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:30:51,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:30:51,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:30:51,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:30:51,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:30:51,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:51,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:30:51,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:30:51,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:30:51,143 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:30:51,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:30:51,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:30:51,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:30:51,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:30:51,145 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_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 411418f84906bedc11fcfc3b7bde3a728b9fa839 [2021-10-16 02:30:51,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:30:51,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:30:51,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:30:51,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:30:51,505 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:30:51,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2021-10-16 02:30:51,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data/7d2f451d4/c42a97596c3f4b2c99174f0d5a475783/FLAGaffbcc1bc [2021-10-16 02:30:52,146 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:30:52,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2021-10-16 02:30:52,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data/7d2f451d4/c42a97596c3f4b2c99174f0d5a475783/FLAGaffbcc1bc [2021-10-16 02:30:52,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data/7d2f451d4/c42a97596c3f4b2c99174f0d5a475783 [2021-10-16 02:30:52,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:30:52,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:30:52,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:52,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:30:52,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:30:52,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3613efec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52, skipping insertion in model container [2021-10-16 02:30:52,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:30:52,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:30:52,825 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2021-10-16 02:30:52,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:52,844 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:30:52,935 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2021-10-16 02:30:52,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:52,954 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:30:52,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52 WrapperNode [2021-10-16 02:30:52,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:52,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:52,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:30:52,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:30:52,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:52,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:53,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:30:53,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:30:53,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:30:53,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:30:53,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:30:53,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:30:53,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:30:53,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (1/1) ... [2021-10-16 02:30:53,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:53,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:30:53,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:30:53,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:30:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:30:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:30:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:30:53,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:30:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:30:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:30:53,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:30:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:30:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:30:53,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:30:53,906 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-16 02:30:53,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:53 BoogieIcfgContainer [2021-10-16 02:30:53,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:30:53,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:30:53,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:30:53,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:30:53,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:52" (1/3) ... [2021-10-16 02:30:53,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd698d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:53, skipping insertion in model container [2021-10-16 02:30:53,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:52" (2/3) ... [2021-10-16 02:30:53,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd698d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:30:53, skipping insertion in model container [2021-10-16 02:30:53,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:53" (3/3) ... [2021-10-16 02:30:53,921 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2021-10-16 02:30:53,927 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:30:53,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:30:54,003 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:30:54,012 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:30:54,012 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:30:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.7272727272727273) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:30:54,035 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:54,036 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:54,036 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:30:54,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:54,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1794980911, now seen corresponding path program 1 times [2021-10-16 02:30:54,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:30:54,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225957064] [2021-10-16 02:30:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:54,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:30:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:30:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:30:54,260 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:30:54,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225957064] [2021-10-16 02:30:54,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225957064] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:30:54,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:30:54,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:30:54,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004152811] [2021-10-16 02:30:54,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:30:54,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:30:54,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:30:54,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:30:54,288 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.7272727272727273) internal successors, (57), 34 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:54,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:30:54,303 INFO L93 Difference]: Finished difference Result 69 states and 113 transitions. [2021-10-16 02:30:54,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:30:54,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-16 02:30:54,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:30:54,314 INFO L225 Difference]: With dead ends: 69 [2021-10-16 02:30:54,314 INFO L226 Difference]: Without dead ends: 33 [2021-10-16 02:30:54,317 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:30:54,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-16 02:30:54,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-16 02:30:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-10-16 02:30:54,349 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 10 [2021-10-16 02:30:54,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:30:54,349 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-10-16 02:30:54,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:30:54,350 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2021-10-16 02:30:54,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-16 02:30:54,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:30:54,351 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:30:54,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:30:54,351 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:30:54,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:30:54,352 INFO L82 PathProgramCache]: Analyzing trace with hash -81492276, now seen corresponding path program 1 times [2021-10-16 02:30:54,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:30:54,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449644047] [2021-10-16 02:30:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:30:54,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:30:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:30:54,433 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:30:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:30:54,534 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:30:54,535 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:30:54,536 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:30:54,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:30:54,544 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:30:54,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:30:54 BoogieIcfgContainer [2021-10-16 02:30:54,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:30:54,592 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:30:54,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:30:54,592 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:30:54,592 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:30:53" (3/4) ... [2021-10-16 02:30:54,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:30:54,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:30:54,604 INFO L168 Benchmark]: Toolchain (without parser) took 2115.18 ms. Allocated memory was 109.1 MB in the beginning and 146.8 MB in the end (delta: 37.7 MB). Free memory was 76.7 MB in the beginning and 90.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:54,605 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 63.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:54,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 466.15 ms. Allocated memory is still 109.1 MB. Free memory was 76.5 MB in the beginning and 79.6 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:54,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.31 ms. Allocated memory is still 109.1 MB. Free memory was 79.6 MB in the beginning and 77.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:54,616 INFO L168 Benchmark]: Boogie Preprocessor took 57.90 ms. Allocated memory is still 109.1 MB. Free memory was 77.3 MB in the beginning and 75.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:54,617 INFO L168 Benchmark]: RCFGBuilder took 815.80 ms. Allocated memory was 109.1 MB in the beginning and 146.8 MB in the end (delta: 37.7 MB). Free memory was 75.2 MB in the beginning and 121.6 MB in the end (delta: -46.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:54,618 INFO L168 Benchmark]: TraceAbstraction took 680.55 ms. Allocated memory is still 146.8 MB. Free memory was 121.1 MB in the beginning and 90.8 MB in the end (delta: 30.3 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:30:54,618 INFO L168 Benchmark]: Witness Printer took 10.20 ms. Allocated memory is still 146.8 MB. Free memory was 90.8 MB in the beginning and 90.2 MB in the end (delta: 639.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:30:54,629 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory is still 63.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 466.15 ms. Allocated memory is still 109.1 MB. Free memory was 76.5 MB in the beginning and 79.6 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.31 ms. Allocated memory is still 109.1 MB. Free memory was 79.6 MB in the beginning and 77.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.90 ms. Allocated memory is still 109.1 MB. Free memory was 77.3 MB in the beginning and 75.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 815.80 ms. Allocated memory was 109.1 MB in the beginning and 146.8 MB in the end (delta: 37.7 MB). Free memory was 75.2 MB in the beginning and 121.6 MB in the end (delta: -46.4 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 680.55 ms. Allocated memory is still 146.8 MB. Free memory was 121.1 MB in the beginning and 90.8 MB in the end (delta: 30.3 MB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * Witness Printer took 10.20 ms. Allocated memory is still 146.8 MB. Free memory was 90.8 MB in the beginning and 90.2 MB in the end (delta: 639.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 188]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someUnaryDOUBLEoperation at line 183, overapproximation of someBinaryArithmeticDOUBLEoperation at line 150, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L128-L131] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L133] static const double zero_log10 = 0.0; [L183] double x = -0.0; [L136] double y, z; [L137] __int32_t i, k, hx; [L138] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L141] ieee_double_shape_type ew_u; [L142] ew_u.value = (x) [L143] EXPR ew_u.parts.msw [L143] (hx) = ew_u.parts.msw [L144] EXPR ew_u.parts.lsw [L144] (lx) = ew_u.parts.lsw [L147] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L148] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L149] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L150] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] double res = __ieee754_log10(x); [L21] __int32_t hx, lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L187] COND TRUE !isinf_double(res) [L188] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 541.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 12.7ms, AutomataDifference: 47.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 42 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 18.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.7ms SsaConstructionTime, 112.7ms SatisfiabilityAnalysisTime, 77.5ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:30:54,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:30:57,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:30:57,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:30:57,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:30:57,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:30:57,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:30:57,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:30:57,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:30:57,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:30:57,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:30:57,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:30:57,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:30:57,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:30:57,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:30:57,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:30:57,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:30:57,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:30:57,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:30:57,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:30:57,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:30:57,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:30:57,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:30:57,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:30:57,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:30:57,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:30:57,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:30:57,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:30:57,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:30:57,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:30:57,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:30:57,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:30:57,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:30:57,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:30:57,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:30:57,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:30:57,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:30:57,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:30:57,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:30:57,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:30:57,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:30:57,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:30:57,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:30:57,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:30:57,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:30:57,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:30:57,313 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:30:57,314 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:30:57,314 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:30:57,314 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:30:57,314 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:30:57,315 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:30:57,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:30:57,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:30:57,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:30:57,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:30:57,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:30:57,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:30:57,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:30:57,319 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:30:57,319 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:30:57,320 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:30:57,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:30:57,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:30:57,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:30:57,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:30:57,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:30:57,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:30:57,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:30:57,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:57,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:30:57,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:30:57,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:30:57,322 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:30:57,323 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:30:57,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:30:57,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:30:57,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:30:57,324 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_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 411418f84906bedc11fcfc3b7bde3a728b9fa839 [2021-10-16 02:30:57,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:30:57,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:30:57,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:30:57,697 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:30:57,698 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:30:57,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2021-10-16 02:30:57,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data/38262ba68/b9b8757700f545009757b14a1ee954d2/FLAG001c7de38 [2021-10-16 02:30:58,371 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:30:58,373 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2021-10-16 02:30:58,385 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data/38262ba68/b9b8757700f545009757b14a1ee954d2/FLAG001c7de38 [2021-10-16 02:30:58,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/data/38262ba68/b9b8757700f545009757b14a1ee954d2 [2021-10-16 02:30:58,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:30:58,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:30:58,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:58,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:30:58,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:30:58,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:58" (1/1) ... [2021-10-16 02:30:58,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fe6f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:58, skipping insertion in model container [2021-10-16 02:30:58,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:30:58" (1/1) ... [2021-10-16 02:30:58,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:30:58,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:30:59,024 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2021-10-16 02:30:59,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:59,040 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:30:59,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2021-10-16 02:30:59,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:30:59,102 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:30:59,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59 WrapperNode [2021-10-16 02:30:59,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:30:59,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:59,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:30:59,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:30:59,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:30:59,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:30:59,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:30:59,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:30:59,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:30:59,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:30:59,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:30:59,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:30:59,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (1/1) ... [2021-10-16 02:30:59,270 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:30:59,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:30:59,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:30:59,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:30:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-16 02:30:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-16 02:30:59,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:30:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:30:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:30:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:30:59,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:30:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:30:59,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:31:29,928 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:31:29,929 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-16 02:31:29,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:31:29 BoogieIcfgContainer [2021-10-16 02:31:29,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:31:29,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:31:29,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:31:29,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:31:29,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:30:58" (1/3) ... [2021-10-16 02:31:29,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ee52d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:31:29, skipping insertion in model container [2021-10-16 02:31:29,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:30:59" (2/3) ... [2021-10-16 02:31:29,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ee52d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:31:29, skipping insertion in model container [2021-10-16 02:31:29,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:31:29" (3/3) ... [2021-10-16 02:31:29,940 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2021-10-16 02:31:29,945 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:31:29,945 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:31:29,994 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:31:30,000 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:31:30,001 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:31:30,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:31:30,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-16 02:31:30,020 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:31:30,021 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:31:30,022 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:31:30,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:30,027 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2021-10-16 02:31:30,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:30,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435367] [2021-10-16 02:31:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:30,041 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:30,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:30,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:30,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:31:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:31:30,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:31:30,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:31:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:31,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:31:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:31,360 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:31:31,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435367] [2021-10-16 02:31:31,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435367] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:31:31,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:31:31,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:31:31,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139402279] [2021-10-16 02:31:31,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:31:31,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:31:31,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:31:31,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:31:31,386 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:31:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:31:31,408 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2021-10-16 02:31:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:31:31,426 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-16 02:31:31,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:31:31,435 INFO L225 Difference]: With dead ends: 88 [2021-10-16 02:31:31,436 INFO L226 Difference]: Without dead ends: 42 [2021-10-16 02:31:31,439 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:31:31,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-16 02:31:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-16 02:31:31,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 41 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:31:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2021-10-16 02:31:31,472 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2021-10-16 02:31:31,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:31:31,472 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2021-10-16 02:31:31,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:31:31,473 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2021-10-16 02:31:31,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 02:31:31,474 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:31:31,474 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:31:31,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:31:31,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:31:31,694 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:31:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:31:31,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2021-10-16 02:31:31,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:31:31,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567565624] [2021-10-16 02:31:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:31:31,703 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:31:31,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:31:31,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:31:31,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:31:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:31:32,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 02:31:32,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:31:33,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2021-10-16 02:31:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:31:35,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:31:36,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 89 [2021-10-16 02:31:45,594 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_15| (_ BitVec 64))) (or (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_15|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_15|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32))))))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_15|)) (fp.div c_currentRoundingMode (fp.neg c_~two54_log10~0) c_~zero_log10~0))))) is different from false [2021-10-16 02:31:47,794 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_15| (_ BitVec 64))) (or (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_15|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_15|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32))))))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_15|)) (fp.div c_currentRoundingMode (fp.neg c_~two54_log10~0) c_~zero_log10~0))))) is different from true [2021-10-16 02:32:32,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:32:32,706 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:32:32,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567565624] [2021-10-16 02:32:32,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567565624] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:32:32,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:32:32,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-10-16 02:32:32,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508137920] [2021-10-16 02:32:32,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-16 02:32:32,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:32:32,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-16 02:32:32,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=128, Unknown=2, NotChecked=22, Total=182 [2021-10-16 02:32:32,712 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:32:35,135 WARN L860 $PredicateComparison]: unable to prove that (and (= c_~two54_log10~0 ((_ to_fp 11 53) c_currentRoundingMode 18014398509481984.0)) (= (_ +zero 11 53) c_~zero_log10~0) (forall ((|v_skolemized_q#valueAsBitvector_15| (_ BitVec 64))) (or (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_15|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_15|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32))))))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_15|)) (fp.div c_currentRoundingMode (fp.neg c_~two54_log10~0) c_~zero_log10~0)))))) is different from true [2021-10-16 02:33:19,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:33:19,778 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2021-10-16 02:33:19,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 02:33:19,926 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-16 02:33:19,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:33:19,927 INFO L225 Difference]: With dead ends: 50 [2021-10-16 02:33:19,927 INFO L226 Difference]: Without dead ends: 42 [2021-10-16 02:33:19,929 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 11550.5ms TimeCoverageRelationStatistics Valid=68, Invalid=209, Unknown=3, NotChecked=62, Total=342 [2021-10-16 02:33:19,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-16 02:33:19,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-10-16 02:33:19,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 41 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:33:19,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2021-10-16 02:33:19,937 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 14 [2021-10-16 02:33:19,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:33:19,937 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2021-10-16 02:33:19,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:33:19,938 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2021-10-16 02:33:19,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 02:33:19,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:33:19,938 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:33:19,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-16 02:33:20,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:33:20,139 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:33:20,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:33:20,140 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2021-10-16 02:33:20,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:33:20,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919215456] [2021-10-16 02:33:20,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:33:20,141 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:33:20,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:33:20,143 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:33:20,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:33:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:33:20,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:33:20,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:33:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:33:21,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:33:21,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:33:21,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:33:21,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919215456] [2021-10-16 02:33:21,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919215456] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:33:21,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:33:21,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:33:21,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047301824] [2021-10-16 02:33:21,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:33:21,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:33:21,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:33:21,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:33:21,997 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:33:25,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:33:25,269 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2021-10-16 02:33:25,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:33:25,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-16 02:33:25,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:33:25,303 INFO L225 Difference]: With dead ends: 50 [2021-10-16 02:33:25,303 INFO L226 Difference]: Without dead ends: 16 [2021-10-16 02:33:25,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 659.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:33:25,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-16 02:33:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-16 02:33:25,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:33:25,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-16 02:33:25,308 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2021-10-16 02:33:25,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:33:25,308 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-16 02:33:25,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:33:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-16 02:33:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 02:33:25,310 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:33:25,310 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:33:25,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:33:25,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:33:25,527 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:33:25,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:33:25,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1233905145, now seen corresponding path program 1 times [2021-10-16 02:33:25,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:33:25,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545538463] [2021-10-16 02:33:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:33:25,529 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:33:25,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:33:25,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:33:25,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:33:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:33:26,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:33:26,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:33:26,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-10-16 02:33:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:33:27,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:33:28,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2021-10-16 02:33:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:33:28,687 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:33:28,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545538463] [2021-10-16 02:33:28,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1545538463] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:33:28,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:33:28,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:33:28,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206897883] [2021-10-16 02:33:28,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:33:28,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:33:28,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:33:28,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:33:28,690 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:33:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:33:28,931 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-10-16 02:33:28,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:33:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-16 02:33:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:33:28,933 INFO L225 Difference]: With dead ends: 16 [2021-10-16 02:33:28,933 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:33:28,933 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 627.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:33:28,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:33:28,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:33:28,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:33:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:33:28,934 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-16 02:33:28,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:33:28,934 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:33:28,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:33:28,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:33:28,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:33:28,938 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:33:28,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:33:29,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:33:29,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:33:29,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:29,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:33:36,544 WARN L207 SmtUtils]: Spent 7.21 s on a formula simplification. DAG size of input: 44 DAG size of output: 12 [2021-10-16 02:33:37,008 INFO L860 garLoopResultBuilder]: At program point L192(lines 177 193) the Hoare annotation is: true [2021-10-16 02:33:37,008 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2021-10-16 02:33:37,008 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2021-10-16 02:33:37,008 INFO L857 garLoopResultBuilder]: For program point L151(lines 151 152) no Hoare annotation was computed. [2021-10-16 02:33:37,008 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2021-10-16 02:33:37,009 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: false [2021-10-16 02:33:37,009 INFO L857 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2021-10-16 02:33:37,009 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:33:37,009 INFO L857 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2021-10-16 02:33:37,010 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:33:37,010 INFO L857 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2021-10-16 02:33:37,010 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2021-10-16 02:33:37,010 INFO L853 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2021-10-16 02:33:37,011 INFO L857 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2021-10-16 02:33:37,011 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2021-10-16 02:33:37,011 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2021-10-16 02:33:37,011 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2021-10-16 02:33:37,012 INFO L857 garLoopResultBuilder]: For program point L187(lines 187 190) no Hoare annotation was computed. [2021-10-16 02:33:37,012 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-10-16 02:33:37,012 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2021-10-16 02:33:37,012 INFO L857 garLoopResultBuilder]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2021-10-16 02:33:37,013 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10_#res| (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53))))) [2021-10-16 02:33:37,013 INFO L857 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2021-10-16 02:33:37,013 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2021-10-16 02:33:37,013 INFO L853 garLoopResultBuilder]: At program point L31(lines 20 32) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (exists ((|v_skolemized_q#valueAsBitvector_15| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_15|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53))) (= |ULTIMATE.start_isinf_double_#res| (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (_ bv2146435072 32) (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_15|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_15|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32))))))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32))))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10_#res| (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53))))) [2021-10-16 02:33:37,014 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-16 02:33:37,014 INFO L857 garLoopResultBuilder]: For program point L155-1(lines 155 159) no Hoare annotation was computed. [2021-10-16 02:33:37,014 INFO L853 garLoopResultBuilder]: At program point L155-2(lines 155 159) the Hoare annotation is: false [2021-10-16 02:33:37,014 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:33:37,015 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2021-10-16 02:33:37,015 INFO L857 garLoopResultBuilder]: For program point L148(lines 148 160) no Hoare annotation was computed. [2021-10-16 02:33:37,015 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 135 175) no Hoare annotation was computed. [2021-10-16 02:33:37,015 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2021-10-16 02:33:37,016 INFO L857 garLoopResultBuilder]: For program point L140-1(lines 140 145) no Hoare annotation was computed. [2021-10-16 02:33:37,016 INFO L853 garLoopResultBuilder]: At program point L140-2(lines 140 145) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_log10_~x (fp.neg (_ +zero 11 53))) (= ~two54_log10~0 ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (= (_ +zero 11 53) ~zero_log10~0)) [2021-10-16 02:33:37,016 INFO L857 garLoopResultBuilder]: For program point L140-3(lines 140 145) no Hoare annotation was computed. [2021-10-16 02:33:37,016 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:33:37,017 INFO L853 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: false [2021-10-16 02:33:37,017 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 150) no Hoare annotation was computed. [2021-10-16 02:33:37,017 INFO L853 garLoopResultBuilder]: At program point L174(lines 135 175) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10_#res| (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) [2021-10-16 02:33:37,017 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2021-10-16 02:33:37,018 INFO L853 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2021-10-16 02:33:37,018 INFO L857 garLoopResultBuilder]: For program point L167-1(lines 167 172) no Hoare annotation was computed. [2021-10-16 02:33:37,018 INFO L853 garLoopResultBuilder]: At program point L167-2(lines 167 172) the Hoare annotation is: false [2021-10-16 02:33:37,018 INFO L857 garLoopResultBuilder]: For program point L167-3(lines 167 172) no Hoare annotation was computed. [2021-10-16 02:33:37,022 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:33:37,030 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,031 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,035 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,035 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,039 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,040 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,040 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,040 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,040 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,041 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,041 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,041 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,041 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,042 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,042 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,042 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,042 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,043 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,043 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,044 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,046 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,047 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,048 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,048 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,049 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,050 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,050 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,050 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,051 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,051 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,051 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,051 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:33:37 BoogieIcfgContainer [2021-10-16 02:33:37,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:33:37,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:33:37,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:33:37,054 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:33:37,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:31:29" (3/4) ... [2021-10-16 02:33:37,058 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:33:37,073 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-10-16 02:33:37,074 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-16 02:33:37,074 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:33:37,075 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:33:37,104 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) [2021-10-16 02:33:37,105 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) [2021-10-16 02:33:37,106 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_15 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_15[63:63], v_skolemized_q#valueAsBitvector_15[62:52], v_skolemized_q#valueAsBitvector_15[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) && \result == ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(2146435072bv32, ~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_15[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_15[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_15[31:0])), 31bv32)))), ~bvneg32(~bvadd64(2146435072bv32, ~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_15[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_15[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_15[31:0])), 31bv32)))))), 31bv32)), 1bv32))) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) [2021-10-16 02:33:37,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:33:37,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:33:37,165 INFO L168 Benchmark]: Toolchain (without parser) took 158440.13 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 27.0 MB in the beginning and 27.5 MB in the end (delta: -452.1 kB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:33:37,166 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:33:37,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.64 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 24.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:33:37,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.45 ms. Allocated memory is still 50.3 MB. Free memory was 24.2 MB in the beginning and 21.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:33:37,167 INFO L168 Benchmark]: Boogie Preprocessor took 68.21 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 21.8 MB in the beginning and 51.6 MB in the end (delta: -29.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:33:37,168 INFO L168 Benchmark]: RCFGBuilder took 30669.21 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 50.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:33:37,168 INFO L168 Benchmark]: TraceAbstraction took 127119.52 ms. Allocated memory is still 69.2 MB. Free memory was 49.5 MB in the beginning and 33.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:33:37,169 INFO L168 Benchmark]: Witness Printer took 110.60 ms. Allocated memory is still 69.2 MB. Free memory was 33.8 MB in the beginning and 27.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:33:37,172 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 377.64 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 24.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.45 ms. Allocated memory is still 50.3 MB. Free memory was 24.2 MB in the beginning and 21.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.21 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 21.8 MB in the beginning and 51.6 MB in the end (delta: -29.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 30669.21 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 50.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 127119.52 ms. Allocated memory is still 69.2 MB. Free memory was 49.5 MB in the beginning and 33.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Witness Printer took 110.60 ms. Allocated memory is still 69.2 MB. Free memory was 33.8 MB in the beginning and 27.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 188]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 127029.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 11.8ms, AutomataDifference: 50839.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 7865.1ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 125 SDtfs, 28 SDslu, 402 SDs, 0 SdLazy, 50 SolverSat, 5 SolverUnsat, 18 SolverUnknown, 0 SolverNotchecked, 44211.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 12837.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 32.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 130 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 58.1ms HoareSimplificationTime, 11 FomulaSimplificationsInter, 58 FormulaSimplificationTreeSizeReductionInter, 7799.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 59.0ms SsaConstructionTime, 3029.5ms SatisfiabilityAnalysisTime, 64026.9ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 23 QuantifiedInterpolants, 1046 SizeOfPredicates, 24 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 135]: Loop Invariant [2021-10-16 02:33:37,186 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,187 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,187 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,187 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && two54_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16)) && ~Pluszero~LONGDOUBLE() == zero_log10 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2021-10-16 02:33:37,190 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,203 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,203 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,207 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2021-10-16 02:33:37,211 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,211 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_15 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_15[63:63], v_skolemized_q#valueAsBitvector_15[62:52], v_skolemized_q#valueAsBitvector_15[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) && \result == ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(2146435072bv32, ~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_15[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_15[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_15[31:0])), 31bv32)))), ~bvneg32(~bvadd64(2146435072bv32, ~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_15[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_15[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_15[31:0])), 31bv32)))))), 31bv32)), 1bv32))) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-10-16 02:33:37,212 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,213 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,213 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,213 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,214 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,214 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,214 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 02:33:37,214 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) RESULT: Ultimate proved your program to be correct! [2021-10-16 02:33:37,434 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-16 02:33:37,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78d0a4f-967d-4a97-b887-a31d97deca6b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...