./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1011b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1011b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF --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 10784a87e48316f2b03c13799bd6ebc99b9b18e5987e0f86e07dc775e21d10ae --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:27:39,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:27:39,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:27:39,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:27:39,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:27:39,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:27:39,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:27:39,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:27:39,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:27:39,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:27:39,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:27:39,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:27:39,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:27:39,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:27:39,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:27:39,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:27:39,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:27:39,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:27:39,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:27:39,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:27:39,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:27:39,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:27:39,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:27:39,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:27:39,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:27:39,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:27:39,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:27:39,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:27:39,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:27:39,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:27:39,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:27:39,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:27:39,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:27:39,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:27:39,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:27:39,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:27:39,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:27:39,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:27:39,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:27:39,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:27:39,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:27:39,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:27:39,931 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:27:39,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:27:39,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:27:39,933 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:27:39,934 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:27:39,934 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:27:39,934 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:27:39,935 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:27:39,935 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:27:39,935 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:27:39,936 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:27:39,936 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:27:39,937 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:27:39,937 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:27:39,937 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:27:39,937 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:27:39,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:27:39,939 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:27:39,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:27:39,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:27:39,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:27:39,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:27:39,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:27:39,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:27:39,941 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:27:39,941 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:27:39,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:27:39,941 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:27:39,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:27:39,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:27:39,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:27:39,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:39,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:27:39,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:27:39,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:27:39,945 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:27:39,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:27:39,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:27:39,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:27:39,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:27:39,946 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_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10784a87e48316f2b03c13799bd6ebc99b9b18e5987e0f86e07dc775e21d10ae [2021-11-13 01:27:40,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:27:40,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:27:40,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:27:40,325 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:27:40,326 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:27:40,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_1011b.c [2021-11-13 01:27:40,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data/b51de01ab/2970e18c7b884dc1a4cdb2236be4e2d1/FLAGbd17c3f69 [2021-11-13 01:27:40,924 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:27:40,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/sv-benchmarks/c/float-newlib/float_req_bl_1011b.c [2021-11-13 01:27:40,932 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data/b51de01ab/2970e18c7b884dc1a4cdb2236be4e2d1/FLAGbd17c3f69 [2021-11-13 01:27:41,280 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data/b51de01ab/2970e18c7b884dc1a4cdb2236be4e2d1 [2021-11-13 01:27:41,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:27:41,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:27:41,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:41,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:27:41,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:27:41,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0fafed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41, skipping insertion in model container [2021-11-13 01:27:41,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:27:41,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:27:41,540 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/sv-benchmarks/c/float-newlib/float_req_bl_1011b.c[1146,1159] [2021-11-13 01:27:41,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:41,550 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:27:41,572 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/sv-benchmarks/c/float-newlib/float_req_bl_1011b.c[1146,1159] [2021-11-13 01:27:41,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:41,590 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:27:41,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41 WrapperNode [2021-11-13 01:27:41,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:41,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:27:41,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:27:41,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:27:41,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:27:41,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:27:41,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:27:41,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:27:41,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:27:41,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:27:41,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:27:41,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:27:41,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (1/1) ... [2021-11-13 01:27:41,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:41,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:41,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:27:41,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:27:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:27:41,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:27:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-13 01:27:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 01:27:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-13 01:27:41,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:27:41,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:27:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 01:27:41,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:27:42,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:27:42,016 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-13 01:27:42,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:42 BoogieIcfgContainer [2021-11-13 01:27:42,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:27:42,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:27:42,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:27:42,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:27:42,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:27:41" (1/3) ... [2021-11-13 01:27:42,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2260049a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:42, skipping insertion in model container [2021-11-13 01:27:42,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:41" (2/3) ... [2021-11-13 01:27:42,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2260049a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:42, skipping insertion in model container [2021-11-13 01:27:42,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:42" (3/3) ... [2021-11-13 01:27:42,029 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011b.c [2021-11-13 01:27:42,035 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:27:42,035 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:27:42,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:27:42,108 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 [2021-11-13 01:27:42,109 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:27:42,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-13 01:27:42,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:27:42,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:42,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:42,136 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:42,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:42,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1329672220, now seen corresponding path program 1 times [2021-11-13 01:27:42,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:27:42,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131826356] [2021-11-13 01:27:42,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:42,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:27:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:27:42,324 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:27:42,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131826356] [2021-11-13 01:27:42,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131826356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:27:42,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:27:42,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:27:42,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296682177] [2021-11-13 01:27:42,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:27:42,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:27:42,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:27:42,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:27:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:27:42,406 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-13 01:27:42,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:42,433 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2021-11-13 01:27:42,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:27:42,435 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 [2021-11-13 01:27:42,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:42,443 INFO L225 Difference]: With dead ends: 29 [2021-11-13 01:27:42,444 INFO L226 Difference]: Without dead ends: 13 [2021-11-13 01:27:42,447 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 [2021-11-13 01:27:42,451 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.63ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:42,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.41ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 11.63ms Time] [2021-11-13 01:27:42,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-13 01:27:42,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-13 01:27:42,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 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) [2021-11-13 01:27:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-11-13 01:27:42,484 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2021-11-13 01:27:42,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:42,484 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-11-13 01:27:42,484 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) [2021-11-13 01:27:42,485 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-11-13 01:27:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:27:42,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:42,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:42,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:27:42,486 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:42,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:42,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2070443673, now seen corresponding path program 1 times [2021-11-13 01:27:42,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:27:42,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7708740] [2021-11-13 01:27:42,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:42,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:27:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:27:42,532 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:27:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:27:42,620 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 01:27:42,620 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:27:42,622 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:27:42,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:27:42,630 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 01:27:42,633 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:27:42,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:27:42 BoogieIcfgContainer [2021-11-13 01:27:42,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:27:42,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:27:42,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:27:42,686 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:27:42,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:42" (3/4) ... [2021-11-13 01:27:42,692 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:27:42,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:27:42,695 INFO L158 Benchmark]: Toolchain (without parser) took 1408.12ms. Allocated memory was 96.5MB in the beginning and 132.1MB in the end (delta: 35.7MB). Free memory was 66.0MB in the beginning and 67.6MB in the end (delta: -1.6MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2021-11-13 01:27:42,696 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 96.5MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:27:42,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.12ms. Allocated memory was 96.5MB in the beginning and 132.1MB in the end (delta: 35.7MB). Free memory was 65.8MB in the beginning and 107.5MB in the end (delta: -41.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 01:27:42,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.34ms. Allocated memory is still 132.1MB. Free memory was 107.5MB in the beginning and 105.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:27:42,702 INFO L158 Benchmark]: Boogie Preprocessor took 32.84ms. Allocated memory is still 132.1MB. Free memory was 105.9MB in the beginning and 104.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:27:42,704 INFO L158 Benchmark]: RCFGBuilder took 347.57ms. Allocated memory is still 132.1MB. Free memory was 104.8MB in the beginning and 93.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 01:27:42,708 INFO L158 Benchmark]: TraceAbstraction took 658.74ms. Allocated memory is still 132.1MB. Free memory was 92.8MB in the beginning and 68.2MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-13 01:27:42,709 INFO L158 Benchmark]: Witness Printer took 6.35ms. Allocated memory is still 132.1MB. Free memory was 68.2MB in the beginning and 67.6MB in the end (delta: 543.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:27:42,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 96.5MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.12ms. Allocated memory was 96.5MB in the beginning and 132.1MB in the end (delta: 35.7MB). Free memory was 65.8MB in the beginning and 107.5MB in the end (delta: -41.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.34ms. Allocated memory is still 132.1MB. Free memory was 107.5MB in the beginning and 105.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.84ms. Allocated memory is still 132.1MB. Free memory was 105.9MB in the beginning and 104.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.57ms. Allocated memory is still 132.1MB. Free memory was 104.8MB in the beginning and 93.3MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 658.74ms. Allocated memory is still 132.1MB. Free memory was 92.8MB in the beginning and 68.2MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 6.35ms. Allocated memory is still 132.1MB. Free memory was 68.2MB in the beginning and 67.6MB in the end (delta: 543.3kB). Peak memory consumption was 2.1MB. 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: 52]: 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 51, overapproximation of someUnaryFLOAToperation at line 47, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L47] float x = -0.0f; [L48] CALL, EXPR fabs_float(x) [L15] __uint32_t ix; VAL [\old(x)=52, x=52] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type sf_u; [L23] sf_u.word = (ix & 0x7fffffff) [L24] EXPR sf_u.value [L24] (x) = sf_u.value [L26] return x; [L48] RET, EXPR fabs_float(x) [L48] float res = fabs_float(x); [L51] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=49, res == 0.0f && __signbit_float(res) == 0=0, x=52] [L51] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L52] reach_error() VAL [res=49, x=52] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 11.63ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 9.50ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 4 mSolverCounterSat, 0.41ms 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=15occurred 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, 16 NumberOfCodeBlocks, 16 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 [2021-11-13 01:27:42,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/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_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1011b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF --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 10784a87e48316f2b03c13799bd6ebc99b9b18e5987e0f86e07dc775e21d10ae --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:27:45,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:27:45,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:27:45,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:27:45,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:27:45,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:27:45,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:27:45,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:27:45,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:27:45,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:27:45,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:27:45,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:27:45,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:27:45,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:27:45,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:27:45,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:27:45,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:27:45,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:27:45,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:27:45,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:27:45,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:27:45,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:27:45,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:27:45,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:27:45,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:27:45,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:27:45,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:27:45,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:27:45,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:27:45,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:27:45,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:27:45,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:27:45,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:27:45,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:27:45,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:27:45,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:27:45,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:27:45,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:27:45,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:27:45,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:27:45,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:27:45,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:27:45,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:27:45,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:27:45,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:27:45,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:27:45,626 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:27:45,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:27:45,627 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:27:45,627 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:27:45,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:27:45,627 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:27:45,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:27:45,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:27:45,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:27:45,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:27:45,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:27:45,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:27:45,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:27:45,632 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:27:45,632 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:27:45,632 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:27:45,633 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:27:45,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:27:45,633 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:27:45,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:27:45,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:27:45,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:27:45,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:27:45,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:45,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:27:45,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:27:45,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:27:45,635 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:27:45,636 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:27:45,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:27:45,636 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:27:45,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:27:45,637 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_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10784a87e48316f2b03c13799bd6ebc99b9b18e5987e0f86e07dc775e21d10ae [2021-11-13 01:27:46,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:27:46,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:27:46,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:27:46,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:27:46,109 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:27:46,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_1011b.c [2021-11-13 01:27:46,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data/c925e703b/fa4bd2ad0c5a4d1ba726a9cc43e4a72c/FLAGe699001af [2021-11-13 01:27:46,742 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:27:46,743 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/sv-benchmarks/c/float-newlib/float_req_bl_1011b.c [2021-11-13 01:27:46,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data/c925e703b/fa4bd2ad0c5a4d1ba726a9cc43e4a72c/FLAGe699001af [2021-11-13 01:27:47,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/data/c925e703b/fa4bd2ad0c5a4d1ba726a9cc43e4a72c [2021-11-13 01:27:47,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:27:47,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:27:47,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:47,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:27:47,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:27:47,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b731d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47, skipping insertion in model container [2021-11-13 01:27:47,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:27:47,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:27:47,362 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/sv-benchmarks/c/float-newlib/float_req_bl_1011b.c[1146,1159] [2021-11-13 01:27:47,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:47,380 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:27:47,403 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/sv-benchmarks/c/float-newlib/float_req_bl_1011b.c[1146,1159] [2021-11-13 01:27:47,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:27:47,429 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:27:47,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47 WrapperNode [2021-11-13 01:27:47,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:27:47,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:27:47,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:27:47,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:27:47,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:27:47,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:27:47,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:27:47,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:27:47,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:27:47,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:27:47,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:27:47,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:27:47,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (1/1) ... [2021-11-13 01:27:47,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:27:47,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:27:47,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:27:47,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:27:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:27:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:27:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-13 01:27:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:27:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:27:47,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:27:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-13 01:27:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:27:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:27:47,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:27:47,958 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-13 01:27:47,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:47 BoogieIcfgContainer [2021-11-13 01:27:47,960 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:27:47,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:27:47,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:27:47,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:27:47,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:27:47" (1/3) ... [2021-11-13 01:27:47,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627fa407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:47, skipping insertion in model container [2021-11-13 01:27:47,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:27:47" (2/3) ... [2021-11-13 01:27:47,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627fa407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:27:47, skipping insertion in model container [2021-11-13 01:27:47,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:47" (3/3) ... [2021-11-13 01:27:47,968 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011b.c [2021-11-13 01:27:47,973 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:27:47,978 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:27:48,056 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:27:48,068 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 [2021-11-13 01:27:48,068 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:27:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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) [2021-11-13 01:27:48,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:27:48,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:48,104 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:48,104 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:48,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:48,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1641221055, now seen corresponding path program 1 times [2021-11-13 01:27:48,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:27:48,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710397022] [2021-11-13 01:27:48,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:48,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:27:48,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:27:48,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:27:48,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:27:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:48,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:27:48,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:27:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:27:48,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:27:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:27:48,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:27:48,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710397022] [2021-11-13 01:27:48,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710397022] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:27:48,331 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:27:48,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:27:48,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131464490] [2021-11-13 01:27:48,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:27:48,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:27:48,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:27:48,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:27:48,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:27:48,376 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-13 01:27:48,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:48,397 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-11-13 01:27:48,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:27:48,399 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-13 01:27:48,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:48,406 INFO L225 Difference]: With dead ends: 36 [2021-11-13 01:27:48,406 INFO L226 Difference]: Without dead ends: 16 [2021-11-13 01:27:48,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:27:48,412 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.19ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:48,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 1.19ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:27:48,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-13 01:27:48,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-13 01:27:48,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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) [2021-11-13 01:27:48,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-13 01:27:48,482 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2021-11-13 01:27:48,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:48,483 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-13 01:27:48,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-13 01:27:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-13 01:27:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 01:27:48,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:48,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:48,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:27:48,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:27:48,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:48,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash 558264036, now seen corresponding path program 1 times [2021-11-13 01:27:48,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:27:48,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289843340] [2021-11-13 01:27:48,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:48,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:27:48,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:27:48,693 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:27:48,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:27:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:48,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 01:27:48,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:27:48,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-13 01:27:48,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 26 [2021-11-13 01:27:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:27:49,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:27:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:27:49,194 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:27:49,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289843340] [2021-11-13 01:27:49,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289843340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:27:49,195 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:27:49,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 10 [2021-11-13 01:27:49,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562375060] [2021-11-13 01:27:49,195 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:27:49,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 01:27:49,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:27:49,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 01:27:49,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:27:49,199 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2021-11-13 01:27:49,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:49,250 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-11-13 01:27:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:27:49,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) Word has length 11 [2021-11-13 01:27:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:49,251 INFO L225 Difference]: With dead ends: 19 [2021-11-13 01:27:49,251 INFO L226 Difference]: Without dead ends: 16 [2021-11-13 01:27:49,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:27:49,254 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 18.92ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:49,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 63 Invalid, 18 Unknown, 0 Unchecked, 1.30ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 9 Unchecked, 18.92ms Time] [2021-11-13 01:27:49,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-13 01:27:49,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-13 01:27:49,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:27:49,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-11-13 01:27:49,259 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2021-11-13 01:27:49,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:49,260 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-11-13 01:27:49,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2021-11-13 01:27:49,260 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-11-13 01:27:49,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 01:27:49,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:27:49,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:27:49,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:27:49,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:27:49,474 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:27:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:27:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2014349959, now seen corresponding path program 1 times [2021-11-13 01:27:49,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:27:49,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922420724] [2021-11-13 01:27:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:27:49,476 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:27:49,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:27:49,477 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:27:49,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:27:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:27:49,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-13 01:27:49,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:27:49,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-13 01:27:49,697 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-13 01:27:49,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 52 [2021-11-13 01:27:50,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-11-13 01:27:50,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:27:50,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:27:50,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:27:50,958 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:27:50,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922420724] [2021-11-13 01:27:50,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922420724] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:27:50,959 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:27:50,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 19 [2021-11-13 01:27:50,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901903145] [2021-11-13 01:27:50,960 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:27:50,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-13 01:27:50,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:27:50,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-13 01:27:50,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-11-13 01:27:50,961 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:27:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:27:51,087 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-13 01:27:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 01:27:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-13 01:27:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:27:51,091 INFO L225 Difference]: With dead ends: 16 [2021-11-13 01:27:51,092 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:27:51,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-11-13 01:27:51,093 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 11.68ms IncrementalHoareTripleChecker+Time [2021-11-13 01:27:51,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 43 Invalid, 32 Unknown, 0 Unchecked, 1.17ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 26 Unchecked, 11.68ms Time] [2021-11-13 01:27:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:27:51,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:27:51,095 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) [2021-11-13 01:27:51,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:27:51,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-13 01:27:51,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:27:51,095 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:27:51,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:27:51,096 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:27:51,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:27:51,101 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:27:51,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:27:51,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:27:51,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:27:51,367 INFO L861 garLoopResultBuilder]: At program point L56(lines 41 57) the Hoare annotation is: true [2021-11-13 01:27:51,367 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-11-13 01:27:51,368 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 01:27:51,368 INFO L858 garLoopResultBuilder]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2021-11-13 01:27:51,368 INFO L854 garLoopResultBuilder]: At program point L32-2(lines 32 36) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short12#1| (exists ((|v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8| (_ BitVec 32)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8|) (_ bv0 32)))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (= |ULTIMATE.start___signbit_float_~x#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= .cse0 (bvand (_ bv2147483647 32) v_arrayElimCell_2)))))) [2021-11-13 01:27:51,368 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:27:51,368 INFO L858 garLoopResultBuilder]: For program point L32-3(lines 32 36) no Hoare annotation was computed. [2021-11-13 01:27:51,368 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 01:27:51,369 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2021-11-13 01:27:51,369 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-13 01:27:51,369 INFO L854 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start_fabs_float_~x#1|) [2021-11-13 01:27:51,369 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:27:51,369 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-11-13 01:27:51,369 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2021-11-13 01:27:51,369 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-11-13 01:27:51,370 INFO L854 garLoopResultBuilder]: At program point L38(lines 29 39) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) |ULTIMATE.start_main_#t~short12#1|) [2021-11-13 01:27:51,370 INFO L854 garLoopResultBuilder]: At program point L26(lines 14 27) the Hoare annotation is: (exists ((|v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8| (_ BitVec 32)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8|) (_ bv0 32)))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (= .cse0 (bvand (_ bv2147483647 32) v_arrayElimCell_2)) (= |ULTIMATE.start_fabs_float_#res#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) [2021-11-13 01:27:51,370 INFO L858 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2021-11-13 01:27:51,370 INFO L858 garLoopResultBuilder]: For program point L51-2(lines 51 54) no Hoare annotation was computed. [2021-11-13 01:27:51,373 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-13 01:27:51,375 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:27:51,382 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,383 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,383 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,385 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,392 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:27:51 BoogieIcfgContainer [2021-11-13 01:27:51,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:27:51,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:27:51,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:27:51,403 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:27:51,404 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:27:47" (3/4) ... [2021-11-13 01:27:51,407 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:27:51,419 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-13 01:27:51,419 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 01:27:51,419 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 01:27:51,420 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:27:51,452 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:27:51,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:27:51,453 INFO L158 Benchmark]: Toolchain (without parser) took 4344.03ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 49.3MB in the beginning and 56.6MB in the end (delta: -7.3MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2021-11-13 01:27:51,453 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:27:51,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.96ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 68.5MB in the end (delta: -19.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-11-13 01:27:51,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.00ms. Allocated memory is still 83.9MB. Free memory was 68.5MB in the beginning and 66.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:27:51,455 INFO L158 Benchmark]: Boogie Preprocessor took 43.73ms. Allocated memory is still 83.9MB. Free memory was 66.8MB in the beginning and 65.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:27:51,455 INFO L158 Benchmark]: RCFGBuilder took 417.81ms. Allocated memory is still 83.9MB. Free memory was 65.4MB in the beginning and 54.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:27:51,456 INFO L158 Benchmark]: TraceAbstraction took 3440.39ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 53.5MB in the beginning and 58.7MB in the end (delta: -5.3MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2021-11-13 01:27:51,456 INFO L158 Benchmark]: Witness Printer took 49.71ms. Allocated memory is still 113.2MB. Free memory was 58.7MB in the beginning and 56.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:27:51,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.96ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 68.5MB in the end (delta: -19.4MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.00ms. Allocated memory is still 83.9MB. Free memory was 68.5MB in the beginning and 66.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.73ms. Allocated memory is still 83.9MB. Free memory was 66.8MB in the beginning and 65.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 417.81ms. Allocated memory is still 83.9MB. Free memory was 65.4MB in the beginning and 54.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3440.39ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 53.5MB in the beginning and 58.7MB in the end (delta: -5.3MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Witness Printer took 49.71ms. Allocated memory is still 113.2MB. Free memory was 58.7MB in the beginning and 56.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,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: 52]: 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, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 30.59ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 26.25ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 35 IncrementalHoareTripleChecker+Unchecked, 91 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 15 mSolverCounterSat, 3.66ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 96 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 23 QuantifiedInterpolants, 811 SizeOfPredicates, 21 NumberOfNonLiveVariables, 143 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 32]: Loop Invariant [2021-11-13 01:27:51,473 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,473 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,473 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,474 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,474 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,474 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,474 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,474 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,475 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,475 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,476 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,476 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,476 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,476 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,476 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,477 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] Derived loop invariant: aux-res == 0.0f && __signbit_float(res) == 0-aux && (\exists v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8 : bv32, v_arrayElimCell_2 : bv32 :: (~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0]) && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8][0bv32][22:0])) && unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(2147483647bv32, v_arrayElimCell_2)) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 14]: Loop Invariant [2021-11-13 01:27:51,478 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,478 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,478 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,479 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,479 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,479 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,479 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,479 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_2,QUANTIFIED] [2021-11-13 01:27:51,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] [2021-11-13 01:27:51,482 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8 : bv32, v_arrayElimCell_2 : bv32 :: (~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_arrayElimCell_2[31:31], v_arrayElimCell_2[30:23], v_arrayElimCell_2[22:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8][0bv32] == ~bvand32(2147483647bv32, v_arrayElimCell_2)) && \result == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_8][0bv32][22:0])) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: \result == 0bv32 && aux-res == 0.0f && __signbit_float(res) == 0-aux RESULT: Ultimate proved your program to be correct! [2021-11-13 01:27:51,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c86ab60-4dbb-4945-b698-49561f6c7eb3/bin/utaipan-vmNK8stdcF/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