./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0910a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0910a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1985c142f4bad82ade144c3cf2f9b0ec416a6e8e883d7c5dd74ff953a2b83fc0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:40:29,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:40:29,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:40:29,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:40:29,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:40:29,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:40:29,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:40:29,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:40:29,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:40:29,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:40:29,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:40:29,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:40:29,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:40:29,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:40:29,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:40:29,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:40:29,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:40:29,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:40:29,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:40:29,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:40:29,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:40:29,729 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:40:29,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:40:29,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:40:29,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:40:29,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:40:29,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:40:29,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:40:29,740 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:40:29,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:40:29,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:40:29,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:40:29,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:40:29,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:40:29,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:40:29,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:40:29,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:40:29,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:40:29,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:40:29,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:40:29,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:40:29,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:40:29,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:40:29,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:40:29,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:40:29,783 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:40:29,783 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:40:29,783 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:40:29,784 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:40:29,784 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:40:29,784 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:40:29,785 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:40:29,785 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:40:29,785 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:40:29,785 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:40:29,786 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:40:29,786 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:40:29,786 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:40:29,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:40:29,787 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:40:29,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:40:29,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:40:29,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:40:29,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:40:29,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:40:29,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:40:29,789 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:40:29,790 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:40:29,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:40:29,790 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:40:29,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:40:29,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:40:29,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:40:29,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:40:29,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:40:29,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:40:29,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:40:29,793 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:40:29,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:40:29,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:40:29,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:40:29,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:40:29,794 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_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1985c142f4bad82ade144c3cf2f9b0ec416a6e8e883d7c5dd74ff953a2b83fc0 [2021-11-12 22:40:30,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:40:30,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:40:30,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:40:30,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:40:30,184 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:40:30,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0910a.c [2021-11-12 22:40:30,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data/3ad30991e/0c9499439db8402c958748719106e328/FLAGde804d1b8 [2021-11-12 22:40:30,746 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:40:30,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/sv-benchmarks/c/float-newlib/float_req_bl_0910a.c [2021-11-12 22:40:30,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data/3ad30991e/0c9499439db8402c958748719106e328/FLAGde804d1b8 [2021-11-12 22:40:31,120 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data/3ad30991e/0c9499439db8402c958748719106e328 [2021-11-12 22:40:31,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:40:31,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:40:31,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:40:31,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:40:31,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:40:31,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@705c7712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31, skipping insertion in model container [2021-11-12 22:40:31,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:40:31,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:40:31,454 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_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/sv-benchmarks/c/float-newlib/float_req_bl_0910a.c[3092,3105] [2021-11-12 22:40:31,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:40:31,476 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:40:31,549 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_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/sv-benchmarks/c/float-newlib/float_req_bl_0910a.c[3092,3105] [2021-11-12 22:40:31,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:40:31,576 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:40:31,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31 WrapperNode [2021-11-12 22:40:31,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:40:31,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:40:31,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:40:31,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:40:31,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:40:31,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:40:31,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:40:31,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:40:31,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:40:31,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:40:31,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:40:31,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:40:31,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (1/1) ... [2021-11-12 22:40:31,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:40:31,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:40:31,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:40:31,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:40:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:40:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:40:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-12 22:40:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:40:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-12 22:40:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:40:31,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:40:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:40:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:40:32,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:40:32,264 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-12 22:40:32,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:40:32 BoogieIcfgContainer [2021-11-12 22:40:32,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:40:32,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:40:32,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:40:32,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:40:32,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:40:31" (1/3) ... [2021-11-12 22:40:32,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c8e68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:40:32, skipping insertion in model container [2021-11-12 22:40:32,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:31" (2/3) ... [2021-11-12 22:40:32,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c8e68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:40:32, skipping insertion in model container [2021-11-12 22:40:32,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:40:32" (3/3) ... [2021-11-12 22:40:32,283 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910a.c [2021-11-12 22:40:32,289 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:40:32,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:40:32,372 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:40:32,381 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 [2021-11-12 22:40:32,381 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:40:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 22 states have internal predecessors, (35), 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) [2021-11-12 22:40:32,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-12 22:40:32,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:32,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:40:32,423 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:40:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:32,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1916996224, now seen corresponding path program 1 times [2021-11-12 22:40:32,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:40:32,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630007458] [2021-11-12 22:40:32,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:40:32,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:40:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:40:32,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:32,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:40:32,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630007458] [2021-11-12 22:40:32,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630007458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:40:32,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:40:32,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:40:32,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499763899] [2021-11-12 22:40:32,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:32,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:40:32,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:40:32,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:40:32,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:40:32,782 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 22 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:40:32,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:32,830 INFO L93 Difference]: Finished difference Result 45 states and 69 transitions. [2021-11-12 22:40:32,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:40:32,834 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-12 22:40:32,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:32,845 INFO L225 Difference]: With dead ends: 45 [2021-11-12 22:40:32,845 INFO L226 Difference]: Without dead ends: 21 [2021-11-12 22:40:32,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:40:32,854 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.21ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:32,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 4 Unknown, 0 Unchecked, 0.78ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 31.21ms Time] [2021-11-12 22:40:32,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-12 22:40:32,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-12 22:40:32,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 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) [2021-11-12 22:40:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-11-12 22:40:32,899 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2021-11-12 22:40:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:32,900 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-11-12 22:40:32,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:40:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-11-12 22:40:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:40:32,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:32,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:40:32,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:40:32,903 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:40:32,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:32,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1372990139, now seen corresponding path program 1 times [2021-11-12 22:40:32,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:40:32,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649456445] [2021-11-12 22:40:32,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:40:32,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:40:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:40:33,001 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:40:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:40:33,122 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 22:40:33,122 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:40:33,125 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:40:33,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:40:33,132 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 22:40:33,136 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:40:33,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:40:33 BoogieIcfgContainer [2021-11-12 22:40:33,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:40:33,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:40:33,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:40:33,180 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:40:33,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:40:32" (3/4) ... [2021-11-12 22:40:33,185 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 22:40:33,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:40:33,187 INFO L158 Benchmark]: Toolchain (without parser) took 2062.53ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 59.4MB in the beginning and 85.4MB in the end (delta: -26.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2021-11-12 22:40:33,188 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 75.9MB in the beginning and 75.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:40:33,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.86ms. Allocated memory is still 96.5MB. Free memory was 59.1MB in the beginning and 70.0MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:40:33,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.55ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 68.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:40:33,190 INFO L158 Benchmark]: Boogie Preprocessor took 76.79ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:40:33,191 INFO L158 Benchmark]: RCFGBuilder took 531.42ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 50.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-12 22:40:33,192 INFO L158 Benchmark]: TraceAbstraction took 909.86ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 50.2MB in the beginning and 85.4MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:40:33,193 INFO L158 Benchmark]: Witness Printer took 6.01ms. Allocated memory is still 125.8MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:40:33,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory was 75.9MB in the beginning and 75.8MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 446.86ms. Allocated memory is still 96.5MB. Free memory was 59.1MB in the beginning and 70.0MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.55ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 68.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.79ms. Allocated memory is still 96.5MB. Free memory was 68.0MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.42ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 50.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 909.86ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 50.2MB in the beginning and 85.4MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.01ms. Allocated memory is still 125.8MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 122]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L25-L29] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L31] static const float zero_log = 0.0; [L117] float x = 0.0f; [L118] CALL, EXPR __ieee754_logf(x) [L34] float hfsq, f, s, z, R, w, t1, t2, dk; [L35] __int32_t k, ix, i, j; VAL [\old(x)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L38] ieee_float_shape_type gf_u; [L39] gf_u.value = (x) [L40] EXPR gf_u.word [L40] (ix) = gf_u.word [L43] k = 0 VAL [\old(x)=0, ix=0, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L44] COND TRUE ((ix & 0x7fffffff) == 0) [L45] return -two25_log / zero_log; VAL [\old(x)=0, ix=0, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=0, zero_log=0] [L118] RET, EXPR __ieee754_logf(x) [L118] float res = __ieee754_logf(x); [L121] CALL, EXPR isinf_float(res) [L15] __int32_t ix; VAL [\old(x)=33554433, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=33554433, zero_log=0] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L21] ix &= 0x7fffffff [L22] return ((ix) == 0x7f800000L); [L121] RET, EXPR isinf_float(res) [L121] COND TRUE !isinf_float(res) [L122] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=33554433, two25_log=33554432, x=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 31.21ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 25.08ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 4 mSolverCounterSat, 0.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-11-12 22:40:33,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0910a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1985c142f4bad82ade144c3cf2f9b0ec416a6e8e883d7c5dd74ff953a2b83fc0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:40:36,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:40:36,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:40:36,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:40:36,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:40:36,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:40:36,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:40:36,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:40:36,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:40:36,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:40:36,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:40:36,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:40:36,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:40:36,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:40:36,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:40:36,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:40:36,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:40:36,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:40:36,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:40:36,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:40:36,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:40:36,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:40:36,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:40:36,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:40:36,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:40:36,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:40:36,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:40:36,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:40:36,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:40:36,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:40:36,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:40:36,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:40:36,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:40:36,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:40:36,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:40:36,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:40:36,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:40:36,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:40:36,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:40:36,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:40:36,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:40:36,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:40:36,378 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:40:36,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:40:36,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:40:36,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:40:36,380 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:40:36,381 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:40:36,381 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:40:36,381 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:40:36,381 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:40:36,382 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:40:36,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:40:36,385 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:40:36,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:40:36,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:40:36,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:40:36,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:40:36,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:40:36,386 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:40:36,386 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:40:36,387 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:40:36,387 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:40:36,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:40:36,387 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:40:36,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:40:36,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:40:36,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:40:36,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:40:36,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:40:36,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:40:36,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:40:36,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:40:36,390 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:40:36,390 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:40:36,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:40:36,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:40:36,391 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:40:36,391 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_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1985c142f4bad82ade144c3cf2f9b0ec416a6e8e883d7c5dd74ff953a2b83fc0 [2021-11-12 22:40:36,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:40:36,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:40:36,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:40:36,924 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:40:36,927 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:40:36,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0910a.c [2021-11-12 22:40:37,027 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data/7e9fc8a14/037d5a4c22194329a6c5bb46fc177bbb/FLAG316e9e274 [2021-11-12 22:40:37,742 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:40:37,742 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/sv-benchmarks/c/float-newlib/float_req_bl_0910a.c [2021-11-12 22:40:37,750 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data/7e9fc8a14/037d5a4c22194329a6c5bb46fc177bbb/FLAG316e9e274 [2021-11-12 22:40:38,062 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/data/7e9fc8a14/037d5a4c22194329a6c5bb46fc177bbb [2021-11-12 22:40:38,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:40:38,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:40:38,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:40:38,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:40:38,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:40:38,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4f5307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38, skipping insertion in model container [2021-11-12 22:40:38,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:40:38,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:40:38,284 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_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/sv-benchmarks/c/float-newlib/float_req_bl_0910a.c[3092,3105] [2021-11-12 22:40:38,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:40:38,300 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:40:38,344 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_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/sv-benchmarks/c/float-newlib/float_req_bl_0910a.c[3092,3105] [2021-11-12 22:40:38,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:40:38,361 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:40:38,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38 WrapperNode [2021-11-12 22:40:38,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:40:38,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:40:38,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:40:38,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:40:38,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:40:38,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:40:38,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:40:38,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:40:38,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:40:38,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:40:38,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:40:38,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:40:38,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (1/1) ... [2021-11-12 22:40:38,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:40:38,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:40:38,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:40:38,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:40:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-12 22:40:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:40:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:40:38,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:40:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-12 22:40:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:40:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:40:56,406 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:40:56,406 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-12 22:40:56,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:40:56 BoogieIcfgContainer [2021-11-12 22:40:56,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:40:56,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:40:56,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:40:56,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:40:56,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:40:38" (1/3) ... [2021-11-12 22:40:56,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e53b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:40:56, skipping insertion in model container [2021-11-12 22:40:56,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:40:38" (2/3) ... [2021-11-12 22:40:56,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e53b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:40:56, skipping insertion in model container [2021-11-12 22:40:56,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:40:56" (3/3) ... [2021-11-12 22:40:56,417 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910a.c [2021-11-12 22:40:56,423 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:40:56,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:40:56,502 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:40:56,508 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 [2021-11-12 22:40:56,508 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:40:56,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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) [2021-11-12 22:40:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-12 22:40:56,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:56,530 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:40:56,530 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:40:56,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:56,536 INFO L85 PathProgramCache]: Analyzing trace with hash -179144357, now seen corresponding path program 1 times [2021-11-12 22:40:56,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:56,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292779132] [2021-11-12 22:40:56,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:40:56,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:56,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:56,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:56,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:40:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:40:57,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:40:57,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:57,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:40:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:57,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:40:57,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292779132] [2021-11-12 22:40:57,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292779132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:40:57,364 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:40:57,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:40:57,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323340273] [2021-11-12 22:40:57,367 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:40:57,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:40:57,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:40:57,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:40:57,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:40:57,403 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 32 states have internal predecessors, (52), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-12 22:40:57,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:40:57,433 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2021-11-12 22:40:57,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:40:57,436 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-12 22:40:57,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:40:57,444 INFO L225 Difference]: With dead ends: 64 [2021-11-12 22:40:57,444 INFO L226 Difference]: Without dead ends: 30 [2021-11-12 22:40:57,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:40:57,465 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:40:57,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.70ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:40:57,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-12 22:40:57,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-12 22:40:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:40:57,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-11-12 22:40:57,499 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 11 [2021-11-12 22:40:57,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:40:57,499 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-11-12 22:40:57,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-12 22:40:57,500 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-11-12 22:40:57,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-12 22:40:57,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:40:57,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:40:57,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:40:57,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:40:57,702 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:40:57,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:40:57,703 INFO L85 PathProgramCache]: Analyzing trace with hash 574087680, now seen corresponding path program 1 times [2021-11-12 22:40:57,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:40:57,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596480253] [2021-11-12 22:40:57,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:40:57,704 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:40:57,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:40:57,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:40:57,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:40:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:40:58,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-12 22:40:58,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:40:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:40:59,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:41:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:41:46,309 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:41:46,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596480253] [2021-11-12 22:41:46,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [596480253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:41:46,310 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:41:46,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-12 22:41:46,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206018307] [2021-11-12 22:41:46,310 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:41:46,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 22:41:46,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:41:46,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 22:41:46,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=148, Unknown=3, NotChecked=0, Total=182 [2021-11-12 22:41:46,314 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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) [2021-11-12 22:41:50,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:41:52,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:41:55,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:41:57,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:41:59,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:01,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:04,117 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:06,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-12 22:42:06,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:06,212 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2021-11-12 22:42:06,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:42:06,229 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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 [2021-11-12 22:42:06,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:06,230 INFO L225 Difference]: With dead ends: 46 [2021-11-12 22:42:06,230 INFO L226 Difference]: Without dead ends: 38 [2021-11-12 22:42:06,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 28.4s TimeCoverageRelationStatistics Valid=75, Invalid=264, Unknown=3, NotChecked=0, Total=342 [2021-11-12 22:42:06,233 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 40 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18718.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.74ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 19156.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:06,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 221 Invalid, 111 Unknown, 0 Unchecked, 4.74ms Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 8 Unknown, 32 Unchecked, 19156.75ms Time] [2021-11-12 22:42:06,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-12 22:42:06,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2021-11-12 22:42:06,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:42:06,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-11-12 22:42:06,242 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 13 [2021-11-12 22:42:06,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:06,242 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-11-12 22:42:06,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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) [2021-11-12 22:42:06,243 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2021-11-12 22:42:06,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-12 22:42:06,244 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:42:06,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:42:06,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:06,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:06,456 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:42:06,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:42:06,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1681903329, now seen corresponding path program 1 times [2021-11-12 22:42:06,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:42:06,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631081736] [2021-11-12 22:42:06,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:42:06,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:42:06,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:42:06,458 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:42:06,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:42:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:42:06,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 22:42:06,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:42:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:42:07,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:42:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:42:07,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:42:07,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631081736] [2021-11-12 22:42:07,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631081736] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:42:07,485 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:42:07,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 22:42:07,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258299896] [2021-11-12 22:42:07,486 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:42:07,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 22:42:07,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:42:07,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 22:42:07,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:42:07,487 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:42:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:42:07,570 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-11-12 22:42:07,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:42:07,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-12 22:42:07,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:42:07,571 INFO L225 Difference]: With dead ends: 30 [2021-11-12 22:42:07,571 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 22:42:07,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:42:07,573 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.63ms IncrementalHoareTripleChecker+Time [2021-11-12 22:42:07,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.22ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 25.63ms Time] [2021-11-12 22:42:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 22:42:07,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 22:42:07,576 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) [2021-11-12 22:42:07,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 22:42:07,576 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-12 22:42:07,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:42:07,577 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 22:42:07,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:42:07,577 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 22:42:07,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 22:42:07,581 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:42:07,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:42:07,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:42:07,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 22:42:08,109 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-12 22:42:08,109 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 85) no Hoare annotation was computed. [2021-11-12 22:42:08,109 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 22:42:08,110 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 22:42:08,110 INFO L858 garLoopResultBuilder]: For program point L53-1(lines 53 57) no Hoare annotation was computed. [2021-11-12 22:42:08,110 INFO L854 garLoopResultBuilder]: At program point L53-2(lines 53 57) the Hoare annotation is: false [2021-11-12 22:42:08,110 INFO L858 garLoopResultBuilder]: For program point L70(lines 70 77) no Hoare annotation was computed. [2021-11-12 22:42:08,110 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 37 41) no Hoare annotation was computed. [2021-11-12 22:42:08,110 INFO L854 garLoopResultBuilder]: At program point L37-2(lines 37 41) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_logf_~x#1| (_ +zero 8 24)) (= ~two25_log~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-12 22:42:08,111 INFO L858 garLoopResultBuilder]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2021-11-12 22:42:08,111 INFO L858 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-11-12 22:42:08,111 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2021-11-12 22:42:08,111 INFO L858 garLoopResultBuilder]: For program point L62-3(lines 62 66) no Hoare annotation was computed. [2021-11-12 22:42:08,111 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 84) no Hoare annotation was computed. [2021-11-12 22:42:08,111 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 47) no Hoare annotation was computed. [2021-11-12 22:42:08,111 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 107) no Hoare annotation was computed. [2021-11-12 22:42:08,112 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 76) no Hoare annotation was computed. [2021-11-12 22:42:08,112 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 108) no Hoare annotation was computed. [2021-11-12 22:42:08,112 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2021-11-12 22:42:08,112 INFO L854 garLoopResultBuilder]: At program point L22(lines 14 23) the Hoare annotation is: (and (= ~two25_log~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven) (= (bvand (_ bv2147483647 32) |ULTIMATE.start_isinf_float_~ix~0#1|) (_ bv2139095040 32))) [2021-11-12 22:42:08,112 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-12 22:42:08,112 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 49) no Hoare annotation was computed. [2021-11-12 22:42:08,112 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 102) no Hoare annotation was computed. [2021-11-12 22:42:08,113 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 22:42:08,113 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2021-11-12 22:42:08,113 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-12 22:42:08,113 INFO L854 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 33554432.0))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))) (and (= .cse0 |ULTIMATE.start_isinf_float_~x#1|) (= ~two25_log~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start___ieee754_logf_#res#1| .cse0))) [2021-11-12 22:42:08,113 INFO L858 garLoopResultBuilder]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2021-11-12 22:42:08,114 INFO L854 garLoopResultBuilder]: At program point L107(lines 33 109) the Hoare annotation is: (and (= ~two25_log~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start___ieee754_logf_#res#1| (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 33554432.0))) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))))) [2021-11-12 22:42:08,114 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 22:42:08,114 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 58) no Hoare annotation was computed. [2021-11-12 22:42:08,114 INFO L858 garLoopResultBuilder]: For program point L50-1(lines 50 58) no Hoare annotation was computed. [2021-11-12 22:42:08,114 INFO L861 garLoopResultBuilder]: At program point L125(lines 111 126) the Hoare annotation is: true [2021-11-12 22:42:08,119 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-12 22:42:08,121 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:42:08,132 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,137 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,139 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,139 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,141 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,142 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,142 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,142 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,145 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,145 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,146 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,146 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,146 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,146 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,147 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,147 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,148 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,148 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,148 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,148 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:42:08 BoogieIcfgContainer [2021-11-12 22:42:08,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:42:08,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:42:08,150 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:42:08,151 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:42:08,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:40:56" (3/4) ... [2021-11-12 22:42:08,155 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 22:42:08,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-12 22:42:08,168 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-12 22:42:08,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 22:42:08,169 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:42:08,195 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((two25_log == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 3.3554432E7))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) [2021-11-12 22:42:08,196 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 3.3554432E7))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == x && two25_log == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 3.3554432E7))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) [2021-11-12 22:42:08,197 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((two25_log == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && \result == 1bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~bvand32(2147483647bv32, ix) == 2139095040bv32 [2021-11-12 22:42:08,220 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 22:42:08,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:42:08,221 INFO L158 Benchmark]: Toolchain (without parser) took 90155.23ms. Allocated memory is still 69.2MB. Free memory was 48.4MB in the beginning and 31.3MB in the end (delta: 17.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-11-12 22:42:08,221 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 69.2MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:42:08,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.08ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 50.2MB in the end (delta: -2.1MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-11-12 22:42:08,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.81ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 48.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:42:08,223 INFO L158 Benchmark]: Boogie Preprocessor took 54.42ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 46.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:42:08,223 INFO L158 Benchmark]: RCFGBuilder took 17925.14ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 31.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-12 22:42:08,223 INFO L158 Benchmark]: TraceAbstraction took 71739.39ms. Allocated memory is still 69.2MB. Free memory was 30.9MB in the beginning and 35.9MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:42:08,224 INFO L158 Benchmark]: Witness Printer took 70.49ms. Allocated memory is still 69.2MB. Free memory was 35.9MB in the beginning and 31.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 22:42:08,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 69.2MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.08ms. Allocated memory is still 69.2MB. Free memory was 48.1MB in the beginning and 50.2MB in the end (delta: -2.1MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.81ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 48.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.42ms. Allocated memory is still 69.2MB. Free memory was 48.0MB in the beginning and 46.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 17925.14ms. Allocated memory is still 69.2MB. Free memory was 46.2MB in the beginning and 31.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 71739.39ms. Allocated memory is still 69.2MB. Free memory was 30.9MB in the beginning and 35.9MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.49ms. Allocated memory is still 69.2MB. Free memory was 35.9MB in the beginning and 31.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 122]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 71.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 19182.38ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 271 SdHoareTripleChecker+Invalid, 18743.53ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 32 IncrementalHoareTripleChecker+Unchecked, 198 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 73 mSDtfsCounter, 72 mSolverCounterSat, 5.67ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 28.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 117 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 48.9s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 8 QuantifiedInterpolants, 409 SizeOfPredicates, 15 NumberOfNonLiveVariables, 180 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant [2021-11-12 22:42:08,238 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,238 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((two25_log == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && \result == 1bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~bvand32(2147483647bv32, ix) == 2139095040bv32 - InvariantResult [Line: 37]: Loop Invariant [2021-11-12 22:42:08,239 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && two25_log == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant [2021-11-12 22:42:08,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 3.3554432E7))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == x && two25_log == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 3.3554432E7))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 33]: Loop Invariant [2021-11-12 22:42:08,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,245 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-12 22:42:08,247 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((two25_log == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 3.3554432E7))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) RESULT: Ultimate proved your program to be correct! [2021-11-12 22:42:08,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a30fc9d7-8409-4e08-a8aa-a5b02bee13fc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE