./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8 --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 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:31,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:31,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:31,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:31,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:31,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:31,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:31,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:31,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:31,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:31,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:31,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:31,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:31,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:31,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:31,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:31,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:31,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:31,734 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:31,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:31,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:31,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:31,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:31,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:31,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:31,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:31,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:31,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:31,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:31,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:31,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:31,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:31,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:31,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:31,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:31,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:31,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:31,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:31,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:31,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:31,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:31,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 00:53:31,820 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:31,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:31,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:31,822 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:31,822 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:31,822 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:31,823 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:53:31,823 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:31,823 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:31,823 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:53:31,823 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:53:31,823 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:31,824 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:53:31,824 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:53:31,824 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:53:31,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:31,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:31,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:53:31,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:31,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:31,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:31,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:31,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:31,826 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:31,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:31,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:31,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:31,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:31,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:31,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:31,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:31,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:31,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:31,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:31,829 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:53:31,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:53:31,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:31,829 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:31,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:31,829 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_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2021-11-07 00:53:32,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:32,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:32,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:32,153 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:32,153 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:32,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2021-11-07 00:53:32,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data/0b8e5c80a/25034ef74f5d4899be7f556278afd868/FLAGffbbecca6 [2021-11-07 00:53:32,747 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:32,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2021-11-07 00:53:32,762 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data/0b8e5c80a/25034ef74f5d4899be7f556278afd868/FLAGffbbecca6 [2021-11-07 00:53:33,135 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data/0b8e5c80a/25034ef74f5d4899be7f556278afd868 [2021-11-07 00:53:33,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:33,139 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:33,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:33,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:33,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:33,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346fc4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33, skipping insertion in model container [2021-11-07 00:53:33,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:33,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:33,389 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_f4462cc8-5088-4c45-a45a-0983ba8556ac/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2021-11-07 00:53:33,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:33,400 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:53:33,419 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_f4462cc8-5088-4c45-a45a-0983ba8556ac/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2021-11-07 00:53:33,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:33,434 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:53:33,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33 WrapperNode [2021-11-07 00:53:33,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:33,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:33,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:53:33,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:53:33,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:33,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:53:33,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:53:33,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:53:33,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:53:33,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:53:33,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:53:33,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:53:33,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (1/1) ... [2021-11-07 00:53:33,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:33,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:33,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:53:33,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:53:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 00:53:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:53:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-07 00:53:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 00:53:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-07 00:53:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:53:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:53:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 00:53:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:53:33,957 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:53:33,957 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-07 00:53:33,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:33 BoogieIcfgContainer [2021-11-07 00:53:33,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:53:33,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:53:33,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:53:33,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:53:33,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:33" (1/3) ... [2021-11-07 00:53:33,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b518c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:33, skipping insertion in model container [2021-11-07 00:53:33,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:33" (2/3) ... [2021-11-07 00:53:33,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b518c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:33, skipping insertion in model container [2021-11-07 00:53:33,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:33" (3/3) ... [2021-11-07 00:53:33,968 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2021-11-07 00:53:33,973 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:53:33,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 00:53:34,034 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:53:34,041 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 [2021-11-07 00:53:34,041 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 00:53:34,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:34,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-07 00:53:34,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:34,061 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:34,061 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:53:34,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:34,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1931305588, now seen corresponding path program 1 times [2021-11-07 00:53:34,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:53:34,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629924822] [2021-11-07 00:53:34,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:34,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:53:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:34,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:34,279 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 00:53:34,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629924822] [2021-11-07 00:53:34,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629924822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:34,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:34,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 00:53:34,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240630145] [2021-11-07 00:53:34,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:53:34,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 00:53:34,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:53:34,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:53:34,317 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-11-07 00:53:34,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:34,333 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2021-11-07 00:53:34,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:53:34,336 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 [2021-11-07 00:53:34,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:34,345 INFO L225 Difference]: With dead ends: 25 [2021-11-07 00:53:34,346 INFO L226 Difference]: Without dead ends: 11 [2021-11-07 00:53:34,350 INFO L786 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 [2021-11-07 00:53:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-07 00:53:34,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-07 00:53:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-11-07 00:53:34,382 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 7 [2021-11-07 00:53:34,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:34,382 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-11-07 00:53:34,383 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) [2021-11-07 00:53:34,383 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-11-07 00:53:34,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 00:53:34,384 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:34,384 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:34,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 00:53:34,385 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:53:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1496915768, now seen corresponding path program 1 times [2021-11-07 00:53:34,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 00:53:34,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115956505] [2021-11-07 00:53:34,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:34,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 00:53:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 00:53:34,481 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 00:53:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 00:53:34,533 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 00:53:34,534 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 00:53:34,535 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:53:34,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 00:53:34,541 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 00:53:34,544 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 00:53:34,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:53:34 BoogieIcfgContainer [2021-11-07 00:53:34,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 00:53:34,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 00:53:34,574 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 00:53:34,574 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 00:53:34,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:33" (3/4) ... [2021-11-07 00:53:34,581 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 00:53:34,582 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 00:53:34,585 INFO L168 Benchmark]: Toolchain (without parser) took 1443.45 ms. Allocated memory is still 121.6 MB. Free memory was 86.7 MB in the beginning and 56.6 MB in the end (delta: 30.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:34,586 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 41.1 MB in the beginning and 41.0 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:34,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.52 ms. Allocated memory is still 121.6 MB. Free memory was 86.4 MB in the beginning and 95.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:34,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 121.6 MB. Free memory was 95.7 MB in the beginning and 94.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:34,595 INFO L168 Benchmark]: Boogie Preprocessor took 38.64 ms. Allocated memory is still 121.6 MB. Free memory was 94.4 MB in the beginning and 92.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:34,597 INFO L168 Benchmark]: RCFGBuilder took 436.79 ms. Allocated memory is still 121.6 MB. Free memory was 92.9 MB in the beginning and 81.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:34,598 INFO L168 Benchmark]: TraceAbstraction took 611.05 ms. Allocated memory is still 121.6 MB. Free memory was 80.3 MB in the beginning and 57.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:34,598 INFO L168 Benchmark]: Witness Printer took 8.56 ms. Allocated memory is still 121.6 MB. Free memory was 57.2 MB in the beginning and 56.6 MB in the end (delta: 611.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:34,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory was 41.1 MB in the beginning and 41.0 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.52 ms. Allocated memory is still 121.6 MB. Free memory was 86.4 MB in the beginning and 95.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 121.6 MB. Free memory was 95.7 MB in the beginning and 94.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.64 ms. Allocated memory is still 121.6 MB. Free memory was 94.4 MB in the beginning and 92.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 436.79 ms. Allocated memory is still 121.6 MB. Free memory was 92.9 MB in the beginning and 81.2 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 611.05 ms. Allocated memory is still 121.6 MB. Free memory was 80.3 MB in the beginning and 57.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 8.56 ms. Allocated memory is still 121.6 MB. Free memory was 57.2 MB in the beginning and 56.6 MB in the end (delta: 611.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 51]: 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 35, overapproximation of bitwiseOr at line 28, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L45] float x = 0.0f / 0.0f; [L46] float y = __VERIFIER_nondet_float(); [L15] __uint32_t ix, iy; [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 gf_u; [L23] gf_u.value = (y) [L24] EXPR gf_u.word [L24] (iy) = gf_u.word [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L29] EXPR sf_u.value [L29] (x) = sf_u.value [L31] return x; [L47] float res = copysign_float(x, y); [L35] return x != x; [L50] COND TRUE !isnan_float(res) [L51] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 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 [2021-11-07 00:53:34,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/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_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8 --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 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:53:37,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:53:37,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:53:37,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:53:37,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:53:37,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:53:37,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:53:37,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:53:37,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:53:37,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:53:37,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:53:37,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:53:37,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:53:37,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:53:37,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:53:37,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:53:37,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:53:37,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:53:37,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:53:37,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:53:37,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:53:37,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:53:37,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:53:37,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:53:37,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:53:37,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:53:37,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:53:37,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:53:37,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:53:37,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:53:37,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:53:37,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:53:37,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:53:37,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:53:37,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:53:37,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:53:37,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:53:37,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:53:37,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:53:37,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:53:37,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:53:37,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 00:53:37,288 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:53:37,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:53:37,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:53:37,290 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:53:37,291 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:53:37,291 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:53:37,291 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:53:37,292 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:53:37,292 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:53:37,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:53:37,294 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 00:53:37,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 00:53:37,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:53:37,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:53:37,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:53:37,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:53:37,296 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:53:37,296 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:53:37,297 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:53:37,297 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 00:53:37,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:53:37,298 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:53:37,298 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:53:37,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:53:37,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:53:37,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:53:37,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:37,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:53:37,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:53:37,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:53:37,301 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:53:37,302 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:53:37,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:53:37,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:53:37,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:53:37,303 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_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2021-11-07 00:53:37,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:53:37,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:53:37,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:53:37,707 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:53:37,707 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:53:37,708 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2021-11-07 00:53:37,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data/af80f1d0c/ca9c90a5bc0c4496b544ca1c2a03fc79/FLAG3fb21bfd7 [2021-11-07 00:53:38,252 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:53:38,253 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2021-11-07 00:53:38,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data/af80f1d0c/ca9c90a5bc0c4496b544ca1c2a03fc79/FLAG3fb21bfd7 [2021-11-07 00:53:38,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/data/af80f1d0c/ca9c90a5bc0c4496b544ca1c2a03fc79 [2021-11-07 00:53:38,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:53:38,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:53:38,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:38,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:53:38,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:53:38,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:38,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32cb904b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38, skipping insertion in model container [2021-11-07 00:53:38,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:38,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:53:38,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:53:38,808 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_f4462cc8-5088-4c45-a45a-0983ba8556ac/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2021-11-07 00:53:38,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:38,824 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:53:38,871 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_f4462cc8-5088-4c45-a45a-0983ba8556ac/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2021-11-07 00:53:38,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:53:38,897 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:53:38,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38 WrapperNode [2021-11-07 00:53:38,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:53:38,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:38,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:53:38,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:53:38,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:38,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:38,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:53:38,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:53:38,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:53:38,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:53:38,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:38,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:38,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:38,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:38,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:39,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:39,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:39,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:53:39,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:53:39,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:53:39,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:53:39,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (1/1) ... [2021-11-07 00:53:39,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:53:39,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:53:39,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:53:39,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:53:39,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:53:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:53:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-07 00:53:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:53:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:53:39,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:53:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-07 00:53:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:53:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:53:39,473 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:53:39,474 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-07 00:53:39,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:39 BoogieIcfgContainer [2021-11-07 00:53:39,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:53:39,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:53:39,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:53:39,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:53:39,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:38" (1/3) ... [2021-11-07 00:53:39,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375c036a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:39, skipping insertion in model container [2021-11-07 00:53:39,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:38" (2/3) ... [2021-11-07 00:53:39,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375c036a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:39, skipping insertion in model container [2021-11-07 00:53:39,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:39" (3/3) ... [2021-11-07 00:53:39,497 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2021-11-07 00:53:39,502 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:53:39,502 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 00:53:39,591 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:53:39,601 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 [2021-11-07 00:53:39,602 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 00:53:39,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 00:53:39,633 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:39,636 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:39,637 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:53:39,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:39,647 INFO L85 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2021-11-07 00:53:39,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:39,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [180388045] [2021-11-07 00:53:39,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:39,662 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:39,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:39,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:39,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:53:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:39,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 00:53:39,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:39,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:39,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:39,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:39,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [180388045] [2021-11-07 00:53:39,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [180388045] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:39,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:39,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 00:53:39,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093574033] [2021-11-07 00:53:39,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 00:53:39,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:39,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 00:53:39,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:53:39,920 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:39,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:39,935 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2021-11-07 00:53:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 00:53:39,936 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 00:53:39,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:39,944 INFO L225 Difference]: With dead ends: 32 [2021-11-07 00:53:39,944 INFO L226 Difference]: Without dead ends: 14 [2021-11-07 00:53:39,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 00:53:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-07 00:53:39,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-07 00:53:39,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2021-11-07 00:53:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-07 00:53:39,976 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2021-11-07 00:53:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:39,977 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-07 00:53:39,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 00:53:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-07 00:53:39,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 00:53:39,978 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:53:39,979 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:53:39,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:40,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:40,192 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 00:53:40,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:53:40,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2021-11-07 00:53:40,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:53:40,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817918048] [2021-11-07 00:53:40,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:53:40,195 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:53:40,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:53:40,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:53:40,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:53:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:53:40,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 00:53:40,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:53:40,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:40,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:53:41,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 00:53:41,057 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:53:41,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817918048] [2021-11-07 00:53:41,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817918048] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:53:41,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:53:41,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 00:53:41,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293928638] [2021-11-07 00:53:41,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 00:53:41,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:53:41,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 00:53:41,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-07 00:53:41,064 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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) [2021-11-07 00:53:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:53:41,609 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-07 00:53:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 00:53:41,609 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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 13 [2021-11-07 00:53:41,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:53:41,610 INFO L225 Difference]: With dead ends: 14 [2021-11-07 00:53:41,610 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 00:53:41,611 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-11-07 00:53:41,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 00:53:41,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 00:53:41,612 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) [2021-11-07 00:53:41,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 00:53:41,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-07 00:53:41,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:53:41,613 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 00:53:41,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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) [2021-11-07 00:53:41,613 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 00:53:41,613 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 00:53:41,616 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 00:53:41,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:53:41,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:53:41,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 00:53:41,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:53:41,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:53:41,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:53:41,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 00:53:41,932 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 00:53:41,932 INFO L853 garLoopResultBuilder]: At program point L31(lines 14 32) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_copysign_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (forall ((ULTIMATE.start_copysign_float_~iy~0 (_ BitVec 32))) (not (let ((.cse0 (let ((.cse1 (bvor (bvand (_ bv2147483647 32) ULTIMATE.start_copysign_float_~ix~0) (bvand (_ bv2147483648 32) ULTIMATE.start_copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.eq .cse0 .cse0)))) (not (fp.eq |ULTIMATE.start_copysign_float_#res| |ULTIMATE.start_copysign_float_#res|))) [2021-11-07 00:53:41,932 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-11-07 00:53:41,933 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 14 32) no Hoare annotation was computed. [2021-11-07 00:53:41,933 INFO L857 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-11-07 00:53:41,933 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 00:53:41,933 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 00:53:41,933 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 00:53:41,933 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-11-07 00:53:41,934 INFO L857 garLoopResultBuilder]: For program point L26-1(lines 14 32) no Hoare annotation was computed. [2021-11-07 00:53:41,934 INFO L857 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-11-07 00:53:41,934 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2021-11-07 00:53:41,934 INFO L860 garLoopResultBuilder]: At program point L55(lines 37 56) the Hoare annotation is: true [2021-11-07 00:53:41,934 INFO L857 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2021-11-07 00:53:41,935 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-07 00:53:41,935 INFO L853 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (not (fp.eq ULTIMATE.start_copysign_float_~x ULTIMATE.start_copysign_float_~x)) [2021-11-07 00:53:41,935 INFO L853 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_copysign_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (forall ((ULTIMATE.start_copysign_float_~iy~0 (_ BitVec 32))) (not (let ((.cse0 (let ((.cse1 (bvor (bvand (_ bv2147483647 32) ULTIMATE.start_copysign_float_~ix~0) (bvand (_ bv2147483648 32) ULTIMATE.start_copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.eq .cse0 .cse0)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_copysign_float_#res| |ULTIMATE.start_copysign_float_#res|))) [2021-11-07 00:53:41,938 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 00:53:41,953 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 00:53:41,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 00:53:41,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,969 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,969 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,973 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 00:53:41,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,974 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,975 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,976 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 00:53:41,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,977 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,978 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 00:53:41,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,979 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,982 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,982 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:41,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:53:41 BoogieIcfgContainer [2021-11-07 00:53:41,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 00:53:41,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 00:53:41,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 00:53:41,994 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 00:53:41,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:39" (3/4) ... [2021-11-07 00:53:41,998 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 00:53:42,011 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 00:53:42,012 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-07 00:53:42,012 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 00:53:42,012 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 00:53:42,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 00:53:42,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 00:53:42,072 INFO L168 Benchmark]: Toolchain (without parser) took 3443.14 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 61.3 MB in the beginning and 61.9 MB in the end (delta: -553.0 kB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:42,073 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:42,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.77 ms. Allocated memory is still 77.6 MB. Free memory was 61.1 MB in the beginning and 59.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:42,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.13 ms. Allocated memory is still 77.6 MB. Free memory was 59.6 MB in the beginning and 58.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:53:42,075 INFO L168 Benchmark]: Boogie Preprocessor took 63.45 ms. Allocated memory is still 77.6 MB. Free memory was 58.0 MB in the beginning and 56.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:42,076 INFO L168 Benchmark]: RCFGBuilder took 451.20 ms. Allocated memory is still 77.6 MB. Free memory was 56.5 MB in the beginning and 45.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:42,076 INFO L168 Benchmark]: TraceAbstraction took 2514.25 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 44.8 MB in the beginning and 64.1 MB in the end (delta: -19.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:42,080 INFO L168 Benchmark]: Witness Printer took 76.88 ms. Allocated memory is still 104.9 MB. Free memory was 64.1 MB in the beginning and 61.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 00:53:42,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.77 ms. Allocated memory is still 77.6 MB. Free memory was 61.1 MB in the beginning and 59.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.13 ms. Allocated memory is still 77.6 MB. Free memory was 59.6 MB in the beginning and 58.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.45 ms. Allocated memory is still 77.6 MB. Free memory was 58.0 MB in the beginning and 56.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 451.20 ms. Allocated memory is still 77.6 MB. Free memory was 56.5 MB in the beginning and 45.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2514.25 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 44.8 MB in the beginning and 64.1 MB in the end (delta: -19.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Witness Printer took 76.88 ms. Allocated memory is still 104.9 MB. Free memory was 64.1 MB in the beginning and 61.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,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: 51]: 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 14 SDslu, 24 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 138 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 12 QuantifiedInterpolants, 344 SizeOfPredicates, 16 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 16]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(x, x) - InvariantResult [Line: 14]: Loop Invariant [2021-11-07 00:53:42,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 00:53:42,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,104 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,104 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 00:53:42,105 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,105 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,105 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,105 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,106 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,106 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (forall ULTIMATE.start_copysign_float_~iy~0 : bv32 :: !~fp.eq~FLOAT(~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0]), ~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0])))) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 35]: Loop Invariant [2021-11-07 00:53:42,107 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 00:53:42,107 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,107 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,108 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,108 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,108 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,109 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,110 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 00:53:42,111 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,111 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,112 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,112 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,112 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 00:53:42,113 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (forall ULTIMATE.start_copysign_float_~iy~0 : bv32 :: !~fp.eq~FLOAT(~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0]), ~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0])))) && 1bv32 == \result) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-07 00:53:42,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4462cc8-5088-4c45-a45a-0983ba8556ac/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE