./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs --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 d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:54:21,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:54:21,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:54:21,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:54:21,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:54:21,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:54:21,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:54:21,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:54:21,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:54:21,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:54:21,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:54:21,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:54:21,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:54:21,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:54:21,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:54:21,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:54:21,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:54:21,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:54:21,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:54:21,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:54:21,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:54:21,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:54:21,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:54:21,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:54:21,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:54:21,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:54:21,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:54:21,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:54:21,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:54:21,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:54:21,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:54:21,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:54:21,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:54:21,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:54:21,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:54:21,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:54:21,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:54:21,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:54:21,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:54:21,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:54:21,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:54:21,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:54:21,223 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:54:21,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:54:21,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:54:21,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:54:21,229 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:54:21,229 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:54:21,230 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:54:21,230 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:54:21,234 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:54:21,234 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:54:21,235 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:54:21,236 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:54:21,236 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:54:21,236 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:54:21,236 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:54:21,237 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:54:21,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:54:21,238 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:54:21,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:54:21,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:54:21,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:54:21,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:54:21,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:54:21,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:54:21,240 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:54:21,240 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:54:21,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:54:21,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:54:21,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:54:21,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:54:21,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:54:21,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:54:21,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:54:21,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:54:21,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:54:21,244 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:54:21,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:54:21,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:54:21,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:54:21,245 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:54:21,246 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_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 [2021-11-19 14:54:21,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:54:21,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:54:21,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:54:21,628 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:54:21,629 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:54:21,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2021-11-19 14:54:21,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data/b6ac7820b/41b3bc0075fe45cc86d772ddb9739c2b/FLAG6012e24f8 [2021-11-19 14:54:22,194 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:54:22,194 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2021-11-19 14:54:22,215 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data/b6ac7820b/41b3bc0075fe45cc86d772ddb9739c2b/FLAG6012e24f8 [2021-11-19 14:54:22,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data/b6ac7820b/41b3bc0075fe45cc86d772ddb9739c2b [2021-11-19 14:54:22,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:54:22,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:54:22,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:54:22,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:54:22,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:54:22,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ab5ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22, skipping insertion in model container [2021-11-19 14:54:22,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:54:22,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:54:22,785 WARN L230 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_e9736864-89c8-4f89-846d-bb59532e4a22/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2021-11-19 14:54:22,788 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:54:22,796 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:54:22,819 WARN L230 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_e9736864-89c8-4f89-846d-bb59532e4a22/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2021-11-19 14:54:22,820 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:54:22,835 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:54:22,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22 WrapperNode [2021-11-19 14:54:22,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:54:22,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:54:22,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:54:22,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:54:22,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,885 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2021-11-19 14:54:22,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:54:22,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:54:22,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:54:22,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:54:22,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:54:22,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:54:22,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:54:22,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:54:22,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (1/1) ... [2021-11-19 14:54:22,946 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:54:22,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:54:22,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:54:22,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:54:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:54:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:54:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:54:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 14:54:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 14:54:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 14:54:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:54:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:54:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 14:54:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:54:23,096 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:54:23,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:54:23,275 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:54:23,337 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:54:23,338 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 14:54:23,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:23 BoogieIcfgContainer [2021-11-19 14:54:23,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:54:23,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:54:23,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:54:23,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:54:23,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:54:22" (1/3) ... [2021-11-19 14:54:23,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6096533f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:54:23, skipping insertion in model container [2021-11-19 14:54:23,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:22" (2/3) ... [2021-11-19 14:54:23,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6096533f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:54:23, skipping insertion in model container [2021-11-19 14:54:23,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:23" (3/3) ... [2021-11-19 14:54:23,364 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2021-11-19 14:54:23,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:54:23,378 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:54:23,466 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:54:23,475 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, mAutomataTypeConcurrency=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 [2021-11-19 14:54:23,486 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:54:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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) [2021-11-19 14:54:23,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 14:54:23,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:23,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:23,527 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:23,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:23,533 INFO L85 PathProgramCache]: Analyzing trace with hash -342175972, now seen corresponding path program 1 times [2021-11-19 14:54:23,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:54:23,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376267292] [2021-11-19 14:54:23,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:23,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:54:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:23,703 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:54:23,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376267292] [2021-11-19 14:54:23,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376267292] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:54:23,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:54:23,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:54:23,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573804485] [2021-11-19 14:54:23,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:54:23,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:54:23,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:54:23,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:54:23,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:54:23,752 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 15 states have internal predecessors, (23), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:54:23,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:23,785 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2021-11-19 14:54:23,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:54:23,788 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 14:54:23,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:23,797 INFO L225 Difference]: With dead ends: 31 [2021-11-19 14:54:23,798 INFO L226 Difference]: Without dead ends: 14 [2021-11-19 14:54:23,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:54:23,805 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:23,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:54:23,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-19 14:54:23,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-19 14:54:23,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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) [2021-11-19 14:54:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-19 14:54:23,881 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2021-11-19 14:54:23,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:23,882 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-19 14:54:23,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:54:23,895 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-19 14:54:23,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:54:23,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:23,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:23,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:54:23,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:23,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:23,906 INFO L85 PathProgramCache]: Analyzing trace with hash 141140715, now seen corresponding path program 1 times [2021-11-19 14:54:23,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:54:23,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680531938] [2021-11-19 14:54:23,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:23,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:54:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:54:24,019 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:54:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:54:24,118 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:54:24,118 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:54:24,120 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:54:24,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 14:54:24,127 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 14:54:24,131 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:54:24,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:54:24 BoogieIcfgContainer [2021-11-19 14:54:24,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:54:24,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:54:24,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:54:24,162 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:54:24,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:23" (3/4) ... [2021-11-19 14:54:24,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:54:24,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:54:24,168 INFO L158 Benchmark]: Toolchain (without parser) took 1605.24ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 49.2MB in the beginning and 93.2MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:54:24,168 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:54:24,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.85ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 49.0MB in the beginning and 101.5MB in the end (delta: -52.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2021-11-19 14:54:24,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.73ms. Allocated memory is still 125.8MB. Free memory was 101.5MB in the beginning and 99.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:54:24,170 INFO L158 Benchmark]: Boogie Preprocessor took 44.50ms. Allocated memory is still 125.8MB. Free memory was 99.7MB in the beginning and 98.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:54:24,171 INFO L158 Benchmark]: RCFGBuilder took 405.89ms. Allocated memory is still 125.8MB. Free memory was 98.4MB in the beginning and 85.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:54:24,172 INFO L158 Benchmark]: TraceAbstraction took 818.10ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 93.2MB in the end (delta: -8.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:54:24,172 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 125.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:54:24,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.85ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 49.0MB in the beginning and 101.5MB in the end (delta: -52.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.73ms. Allocated memory is still 125.8MB. Free memory was 101.5MB in the beginning and 99.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.50ms. Allocated memory is still 125.8MB. Free memory was 99.7MB in the beginning and 98.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.89ms. Allocated memory is still 125.8MB. Free memory was 98.4MB in the beginning and 85.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 818.10ms. Allocated memory is still 125.8MB. Free memory was 84.5MB in the beginning and 93.2MB in the end (delta: -8.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 125.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 73]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 60, overapproximation of someBinaryArithmeticFLOAToperation at line 47, overapproximation of bitwiseAnd at line 24. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L68] float x = 0.0f / 0.0f; [L69] CALL, EXPR floor_float(x) [L17] __int32_t i0, j0; [L18] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000001, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000001] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] ix = (i0 & 0x7fffffff) [L25] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000001, huge_floor=1000000000000000000000000000000, i=-36028792723996673, i0=-1, j0=384, x=1000000000000000000000000000001] [L26] COND FALSE !(j0 < 23) [L46] COND TRUE !((ix) < 0x7f800000L) [L47] return x + x; VAL [\old(x)=1000000000000000000000000000001, \result=1000000000000000000000000000001, huge_floor=1000000000000000000000000000000, i=-36028792723996673, i0=-1, j0=384, x=1000000000000000000000000000001] [L69] RET, EXPR floor_float(x) [L69] float res = floor_float(x); [L72] CALL, EXPR isnan_float(res) [L60] return x != x; [L72] RET, EXPR isnan_float(res) [L72] COND TRUE !isnan_float(res) [L73] reach_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000001, x=1000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2021-11-19 14:54:24,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs --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 d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:54:26,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:54:26,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:54:26,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:54:26,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:54:26,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:54:26,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:54:26,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:54:26,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:54:26,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:54:26,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:54:26,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:54:26,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:54:26,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:54:26,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:54:26,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:54:26,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:54:26,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:54:26,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:54:26,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:54:26,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:54:26,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:54:26,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:54:26,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:54:26,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:54:26,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:54:26,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:54:26,925 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:54:26,926 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:54:26,927 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:54:26,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:54:26,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:54:26,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:54:26,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:54:26,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:54:26,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:54:26,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:54:26,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:54:26,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:54:26,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:54:26,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:54:26,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:54:26,965 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:54:26,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:54:26,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:54:26,966 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:54:26,966 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:54:26,967 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:54:26,967 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:54:26,967 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:54:26,967 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:54:26,968 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:54:26,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:54:26,969 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:54:26,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:54:26,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:54:26,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:54:26,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:54:26,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:54:26,970 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:54:26,971 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:54:26,971 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:54:26,971 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:54:26,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:54:26,972 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:54:26,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:54:26,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:54:26,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:54:26,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:54:26,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:54:26,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:54:26,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:54:26,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:54:26,974 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:54:26,974 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:54:26,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:54:26,975 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:54:26,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:54:26,975 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_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 [2021-11-19 14:54:27,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:54:27,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:54:27,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:54:27,366 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:54:27,369 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:54:27,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2021-11-19 14:54:27,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data/258ac7c0d/b4accc312fd8490b8bb98f51208ceb81/FLAG3a7e08086 [2021-11-19 14:54:28,014 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:54:28,020 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2021-11-19 14:54:28,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data/258ac7c0d/b4accc312fd8490b8bb98f51208ceb81/FLAG3a7e08086 [2021-11-19 14:54:28,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/data/258ac7c0d/b4accc312fd8490b8bb98f51208ceb81 [2021-11-19 14:54:28,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:54:28,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:54:28,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:54:28,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:54:28,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:54:28,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273a649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28, skipping insertion in model container [2021-11-19 14:54:28,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:54:28,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:54:28,675 WARN L230 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_e9736864-89c8-4f89-846d-bb59532e4a22/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2021-11-19 14:54:28,678 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:54:28,690 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:54:28,758 WARN L230 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_e9736864-89c8-4f89-846d-bb59532e4a22/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2021-11-19 14:54:28,759 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:54:28,805 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:54:28,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28 WrapperNode [2021-11-19 14:54:28,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:54:28,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:54:28,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:54:28,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:54:28,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,872 INFO L137 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2021-11-19 14:54:28,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:54:28,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:54:28,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:54:28,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:54:28,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:54:28,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:54:28,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:54:28,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:54:28,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (1/1) ... [2021-11-19 14:54:28,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:54:28,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:54:28,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:54:29,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:54:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:54:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:54:29,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:54:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-19 14:54:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:54:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:54:29,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:54:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-19 14:54:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:54:29,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:54:29,172 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:54:29,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:54:29,758 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:54:29,764 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:54:29,764 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-19 14:54:29,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:29 BoogieIcfgContainer [2021-11-19 14:54:29,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:54:29,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:54:29,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:54:29,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:54:29,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:54:28" (1/3) ... [2021-11-19 14:54:29,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b6f3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:54:29, skipping insertion in model container [2021-11-19 14:54:29,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:28" (2/3) ... [2021-11-19 14:54:29,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b6f3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:54:29, skipping insertion in model container [2021-11-19 14:54:29,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:29" (3/3) ... [2021-11-19 14:54:29,775 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2021-11-19 14:54:29,781 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:54:29,782 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:54:29,844 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:54:29,850 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, mAutomataTypeConcurrency=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 [2021-11-19 14:54:29,851 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:54:29,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 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) [2021-11-19 14:54:29,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-19 14:54:29,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:29,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:29,870 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:29,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:29,876 INFO L85 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2021-11-19 14:54:29,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:54:29,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870959450] [2021-11-19 14:54:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:29,891 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:54:29,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:54:29,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:54:29,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:54:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:30,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:54:30,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:54:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:30,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:54:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:30,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:54:30,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870959450] [2021-11-19 14:54:30,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870959450] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:54:30,162 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:54:30,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:54:30,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003165413] [2021-11-19 14:54:30,165 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:54:30,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:54:30,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:54:30,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:54:30,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:54:30,222 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 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) [2021-11-19 14:54:30,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:30,247 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2021-11-19 14:54:30,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:54:30,249 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 [2021-11-19 14:54:30,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:30,261 INFO L225 Difference]: With dead ends: 50 [2021-11-19 14:54:30,261 INFO L226 Difference]: Without dead ends: 23 [2021-11-19 14:54:30,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:54:30,271 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:30,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:54:30,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-19 14:54:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-19 14:54:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 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) [2021-11-19 14:54:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2021-11-19 14:54:30,304 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2021-11-19 14:54:30,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:30,304 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-11-19 14:54:30,305 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) [2021-11-19 14:54:30,305 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2021-11-19 14:54:30,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:54:30,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:30,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:30,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:54:30,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:54:30,528 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:30,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:30,530 INFO L85 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2021-11-19 14:54:30,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:54:30,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627522499] [2021-11-19 14:54:30,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:30,531 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:54:30,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:54:30,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:54:30,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:54:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:30,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 14:54:30,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:54:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:30,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:54:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:31,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:54:31,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627522499] [2021-11-19 14:54:31,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627522499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:54:31,028 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:54:31,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:54:31,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784062351] [2021-11-19 14:54:31,028 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:54:31,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:54:31,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:54:31,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:54:31,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:54:31,032 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2021-11-19 14:54:31,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:31,447 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2021-11-19 14:54:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:54:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 11 [2021-11-19 14:54:31,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:31,448 INFO L225 Difference]: With dead ends: 35 [2021-11-19 14:54:31,449 INFO L226 Difference]: Without dead ends: 20 [2021-11-19 14:54:31,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:54:31,451 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:31,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 56 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 12 Unchecked, 0.3s Time] [2021-11-19 14:54:31,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-19 14:54:31,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-11-19 14:54:31,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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) [2021-11-19 14:54:31,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-19 14:54:31,457 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2021-11-19 14:54:31,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:31,457 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-19 14:54:31,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) [2021-11-19 14:54:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-19 14:54:31,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:54:31,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:31,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:31,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:54:31,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:54:31,673 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:31,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:31,675 INFO L85 PathProgramCache]: Analyzing trace with hash -64453298, now seen corresponding path program 1 times [2021-11-19 14:54:31,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:54:31,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494176831] [2021-11-19 14:54:31,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:31,676 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:54:31,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:54:31,677 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:54:31,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:54:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:31,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:54:31,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:54:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:32,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:54:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:33,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:54:33,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494176831] [2021-11-19 14:54:33,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494176831] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:54:33,021 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:54:33,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:54:33,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807655352] [2021-11-19 14:54:33,022 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:54:33,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:54:33,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:54:33,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:54:33,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:54:33,024 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2021-11-19 14:54:33,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:33,443 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-11-19 14:54:33,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:54:33,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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 11 [2021-11-19 14:54:33,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:33,445 INFO L225 Difference]: With dead ends: 24 [2021-11-19 14:54:33,445 INFO L226 Difference]: Without dead ends: 18 [2021-11-19 14:54:33,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:54:33,447 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 35 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:33,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 74 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:54:33,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-19 14:54:33,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-19 14:54:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2021-11-19 14:54:33,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-11-19 14:54:33,453 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2021-11-19 14:54:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:33,453 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-11-19 14:54:33,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 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) [2021-11-19 14:54:33,454 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-11-19 14:54:33,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-19 14:54:33,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:33,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:33,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:54:33,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:54:33,683 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:33,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:33,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2021-11-19 14:54:33,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:54:33,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371248001] [2021-11-19 14:54:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:33,685 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:54:33,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:54:33,687 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:54:33,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:54:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:33,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:54:33,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:54:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:34,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:54:34,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:34,191 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:54:34,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371248001] [2021-11-19 14:54:34,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371248001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:54:34,192 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:54:34,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:54:34,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434419916] [2021-11-19 14:54:34,192 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:54:34,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:54:34,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:54:34,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:54:34,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:54:34,204 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-11-19 14:54:34,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:34,249 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-11-19 14:54:34,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:54:34,250 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 [2021-11-19 14:54:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:34,250 INFO L225 Difference]: With dead ends: 18 [2021-11-19 14:54:34,250 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:54:34,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:54:34,252 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:34,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2021-11-19 14:54:34,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:54:34,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:54:34,254 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) [2021-11-19 14:54:34,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:54:34,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-19 14:54:34,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:34,255 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:54:34,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-11-19 14:54:34,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:54:34,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:54:34,260 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:54:34,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:54:34,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:54:34,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:54:34,583 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-19 14:54:34,584 INFO L854 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2021-11-19 14:54:34,584 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 44) no Hoare annotation was computed. [2021-11-19 14:54:34,584 INFO L854 garLoopResultBuilder]: At program point L56(lines 16 57) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_floor_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_floor_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2021-11-19 14:54:34,585 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-11-19 14:54:34,585 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_floor_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2021-11-19 14:54:34,585 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-11-19 14:54:34,585 INFO L861 garLoopResultBuilder]: At program point L77(lines 62 78) the Hoare annotation is: true [2021-11-19 14:54:34,586 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-19 14:54:34,586 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-19 14:54:34,587 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 41) no Hoare annotation was computed. [2021-11-19 14:54:34,587 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 14:54:34,587 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:54:34,587 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 14:54:34,587 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 34) no Hoare annotation was computed. [2021-11-19 14:54:34,588 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2021-11-19 14:54:34,588 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-19 14:54:34,588 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:54:34,588 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2021-11-19 14:54:34,589 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 49) no Hoare annotation was computed. [2021-11-19 14:54:34,589 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 50) no Hoare annotation was computed. [2021-11-19 14:54:34,589 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 55) no Hoare annotation was computed. [2021-11-19 14:54:34,589 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 16 57) no Hoare annotation was computed. [2021-11-19 14:54:34,589 INFO L858 garLoopResultBuilder]: For program point L51-2(lines 51 55) no Hoare annotation was computed. [2021-11-19 14:54:34,590 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-11-19 14:54:34,590 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2021-11-19 14:54:34,594 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-19 14:54:34,595 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:54:34,604 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:54:34,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,609 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:54:34,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,611 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:54:34 BoogieIcfgContainer [2021-11-19 14:54:34,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:54:34,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:54:34,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:54:34,615 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:54:34,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:29" (3/4) ... [2021-11-19 14:54:34,619 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:54:34,631 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-19 14:54:34,632 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-19 14:54:34,632 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 14:54:34,633 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:54:34,660 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2021-11-19 14:54:34,660 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2021-11-19 14:54:34,661 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2021-11-19 14:54:34,676 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:54:34,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:54:34,677 INFO L158 Benchmark]: Toolchain (without parser) took 6287.84ms. Allocated memory was 54.5MB in the beginning and 92.3MB in the end (delta: 37.7MB). Free memory was 32.9MB in the beginning and 65.1MB in the end (delta: -32.3MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-19 14:54:34,677 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:54:34,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.62ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 32.7MB in the beginning and 56.4MB in the end (delta: -23.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:54:34,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.66ms. Allocated memory is still 73.4MB. Free memory was 56.2MB in the beginning and 54.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:54:34,679 INFO L158 Benchmark]: Boogie Preprocessor took 70.69ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 53.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:54:34,679 INFO L158 Benchmark]: RCFGBuilder took 821.48ms. Allocated memory is still 73.4MB. Free memory was 53.1MB in the beginning and 42.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:54:34,680 INFO L158 Benchmark]: TraceAbstraction took 4845.27ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 41.4MB in the beginning and 68.1MB in the end (delta: -26.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:54:34,681 INFO L158 Benchmark]: Witness Printer took 61.65ms. Allocated memory is still 92.3MB. Free memory was 68.1MB in the beginning and 65.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:54:34,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 54.5MB. Free memory was 35.9MB in the beginning and 35.9MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.62ms. Allocated memory was 54.5MB in the beginning and 73.4MB in the end (delta: 18.9MB). Free memory was 32.7MB in the beginning and 56.4MB in the end (delta: -23.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.66ms. Allocated memory is still 73.4MB. Free memory was 56.2MB in the beginning and 54.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.69ms. Allocated memory is still 73.4MB. Free memory was 54.6MB in the beginning and 53.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 821.48ms. Allocated memory is still 73.4MB. Free memory was 53.1MB in the beginning and 42.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4845.27ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 41.4MB in the beginning and 68.1MB in the end (delta: -26.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.65ms. Allocated memory is still 92.3MB. Free memory was 68.1MB in the beginning and 65.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 73]: 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, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 172 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 14 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 64 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 30 HoareAnnotationTreeSize, 4 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 86 ConstructedInterpolants, 11 QuantifiedInterpolants, 393 SizeOfPredicates, 28 NumberOfNonLiveVariables, 161 ConjunctsInSsa, 31 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: 19]: Loop Invariant [2021-11-19 14:54:34,694 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:54:34,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,695 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-19 14:54:34,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 16]: Loop Invariant [2021-11-19 14:54:34,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,697 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,697 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:54:34,697 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-19 14:54:34,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e9736864-89c8-4f89-846d-bb59532e4a22/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE