./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0833.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0833.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl --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 b63eb992c00c845168476a1db77eced17c7e9aa742c6bcee68b2e04a80fb6c93 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:20:26,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:20:26,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:20:27,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:20:27,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:20:27,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:20:27,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:20:27,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:20:27,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:20:27,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:20:27,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:20:27,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:20:27,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:20:27,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:20:27,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:20:27,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:20:27,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:20:27,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:20:27,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:20:27,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:20:27,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:20:27,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:20:27,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:20:27,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:20:27,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:20:27,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:20:27,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:20:27,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:20:27,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:20:27,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:20:27,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:20:27,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:20:27,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:20:27,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:20:27,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:20:27,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:20:27,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:20:27,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:20:27,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:20:27,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:20:27,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:20:27,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:20:27,137 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:20:27,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:20:27,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:20:27,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:20:27,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:20:27,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:20:27,140 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:20:27,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:20:27,140 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:20:27,140 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:20:27,142 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:20:27,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:20:27,142 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:20:27,142 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:20:27,143 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:20:27,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:20:27,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:20:27,143 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:20:27,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:20:27,145 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:20:27,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:20:27,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:20:27,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:20:27,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:20:27,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:20:27,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:20:27,148 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:20:27,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:20:27,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:20:27,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:20:27,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:20:27,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:20:27,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:27,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:20:27,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:20:27,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:20:27,151 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:20:27,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:20:27,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:20:27,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:20:27,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:20:27,152 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_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63eb992c00c845168476a1db77eced17c7e9aa742c6bcee68b2e04a80fb6c93 [2021-11-23 17:20:27,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:20:27,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:20:27,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:20:27,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:20:27,432 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:20:27,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-11-23 17:20:27,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data/eca83476b/d071bb196fd641d49c8bd001f7affe0b/FLAG1ea1362f2 [2021-11-23 17:20:27,956 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:20:27,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-11-23 17:20:27,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data/eca83476b/d071bb196fd641d49c8bd001f7affe0b/FLAG1ea1362f2 [2021-11-23 17:20:28,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data/eca83476b/d071bb196fd641d49c8bd001f7affe0b [2021-11-23 17:20:28,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:20:28,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:20:28,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:28,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:20:28,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:20:28,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770f7016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28, skipping insertion in model container [2021-11-23 17:20:28,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:20:28,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:20:28,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/sv-benchmarks/c/float-newlib/double_req_bl_0833.c[4075,4088] [2021-11-23 17:20:28,666 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:28,674 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:20:28,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/sv-benchmarks/c/float-newlib/double_req_bl_0833.c[4075,4088] [2021-11-23 17:20:28,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:28,766 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:20:28,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28 WrapperNode [2021-11-23 17:20:28,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:28,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:28,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:20:28,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:20:28,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,830 INFO L137 Inliner]: procedures = 18, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 201 [2021-11-23 17:20:28,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:28,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:20:28,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:20:28,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:20:28,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:20:28,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:20:28,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:20:28,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:20:28,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:28" (1/1) ... [2021-11-23 17:20:28,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:28,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:20:28,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:20:28,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:20:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:20:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:20:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:20:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:20:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 17:20:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 17:20:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:20:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:20:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:20:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 17:20:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:20:29,070 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:20:29,072 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:29,294 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:20:29,315 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:20:29,319 INFO L158 Benchmark]: Toolchain (without parser) took 964.65ms. Allocated memory is still 94.4MB. Free memory was 61.2MB in the beginning and 48.5MB in the end (delta: 12.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2021-11-23 17:20:29,320 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory was 51.3MB in the beginning and 51.3MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:20:29,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.19ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 68.3MB in the end (delta: -7.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:20:29,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.05ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 66.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:29,323 INFO L158 Benchmark]: Boogie Preprocessor took 67.85ms. Allocated memory is still 94.4MB. Free memory was 66.1MB in the beginning and 64.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:29,324 INFO L158 Benchmark]: RCFGBuilder took 417.96ms. Allocated memory is still 94.4MB. Free memory was 64.1MB in the beginning and 48.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 17:20:29,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory was 51.3MB in the beginning and 51.3MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.19ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 68.3MB in the end (delta: -7.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.05ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 66.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.85ms. Allocated memory is still 94.4MB. Free memory was 66.1MB in the beginning and 64.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.96ms. Allocated memory is still 94.4MB. Free memory was 64.1MB in the beginning and 48.5MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:20:29,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/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_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0833.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl --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 b63eb992c00c845168476a1db77eced17c7e9aa742c6bcee68b2e04a80fb6c93 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:20:31,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:20:31,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:20:31,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:20:31,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:20:31,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:20:31,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:20:31,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:20:31,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:20:31,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:20:31,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:20:31,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:20:31,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:20:31,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:20:31,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:20:31,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:20:31,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:20:31,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:20:31,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:20:31,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:20:31,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:20:31,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:20:31,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:20:31,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:20:31,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:20:31,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:20:31,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:20:31,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:20:31,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:20:31,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:20:31,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:20:31,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:20:31,948 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:20:31,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:20:31,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:20:31,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:20:31,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:20:31,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:20:31,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:20:31,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:20:31,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:20:31,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:20:32,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:20:32,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:20:32,007 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:20:32,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:20:32,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:20:32,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:20:32,009 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:20:32,009 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:20:32,009 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:20:32,009 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:20:32,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:20:32,011 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:20:32,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:20:32,012 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:20:32,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:20:32,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:20:32,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:20:32,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:20:32,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:20:32,014 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:20:32,014 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:20:32,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:20:32,014 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:20:32,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:20:32,015 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:20:32,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:20:32,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:20:32,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:20:32,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:20:32,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:32,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:20:32,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:20:32,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:20:32,017 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:20:32,017 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:20:32,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:20:32,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:20:32,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:20:32,018 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_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63eb992c00c845168476a1db77eced17c7e9aa742c6bcee68b2e04a80fb6c93 [2021-11-23 17:20:32,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:20:32,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:20:32,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:20:32,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:20:32,467 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:20:32,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-11-23 17:20:32,547 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data/91fa0d19f/ac8a0708fcfa49988e15407bda2ea02d/FLAGc77a12ec3 [2021-11-23 17:20:33,169 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:20:33,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-11-23 17:20:33,181 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data/91fa0d19f/ac8a0708fcfa49988e15407bda2ea02d/FLAGc77a12ec3 [2021-11-23 17:20:33,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/data/91fa0d19f/ac8a0708fcfa49988e15407bda2ea02d [2021-11-23 17:20:33,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:20:33,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:20:33,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:33,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:20:33,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:20:33,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:33,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54619864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33, skipping insertion in model container [2021-11-23 17:20:33,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:33,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:20:33,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:20:33,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/sv-benchmarks/c/float-newlib/double_req_bl_0833.c[4075,4088] [2021-11-23 17:20:33,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:33,811 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:20:33,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/sv-benchmarks/c/float-newlib/double_req_bl_0833.c[4075,4088] [2021-11-23 17:20:33,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:20:33,896 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:20:33,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33 WrapperNode [2021-11-23 17:20:33,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:20:33,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:33,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:20:33,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:20:33,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:33,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:33,980 INFO L137 Inliner]: procedures = 21, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 201 [2021-11-23 17:20:33,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:20:33,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:20:33,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:20:33,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:20:33,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:33,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:34,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:34,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:34,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:34,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:34,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:34,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:20:34,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:20:34,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:20:34,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:20:34,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (1/1) ... [2021-11-23 17:20:34,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:20:34,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:20:34,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:20:34,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:20:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:20:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-23 17:20:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-23 17:20:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:20:34,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:20:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-23 17:20:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:20:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:20:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:20:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:20:34,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:20:34,255 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:20:34,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:20:46,192 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:20:46,200 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:20:46,201 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-23 17:20:46,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:46 BoogieIcfgContainer [2021-11-23 17:20:46,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:20:46,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:20:46,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:20:46,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:20:46,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:20:33" (1/3) ... [2021-11-23 17:20:46,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a237a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:20:46, skipping insertion in model container [2021-11-23 17:20:46,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:20:33" (2/3) ... [2021-11-23 17:20:46,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a237a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:20:46, skipping insertion in model container [2021-11-23 17:20:46,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:46" (3/3) ... [2021-11-23 17:20:46,213 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0833.c [2021-11-23 17:20:46,220 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:20:46,220 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:20:46,270 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:20:46,277 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 [2021-11-23 17:20:46,278 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:20:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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) [2021-11-23 17:20:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 17:20:46,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:46,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:46,301 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:46,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:46,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1722268475, now seen corresponding path program 1 times [2021-11-23 17:20:46,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1559711001] [2021-11-23 17:20:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:46,320 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:46,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:46,336 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:46,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:20:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:46,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 17:20:46,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:46,967 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:46,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:46,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1559711001] [2021-11-23 17:20:46,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1559711001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:46,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:46,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:20:46,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933487387] [2021-11-23 17:20:46,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:46,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 17:20:46,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:47,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 17:20:47,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:20:47,017 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 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) [2021-11-23 17:20:47,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:47,052 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2021-11-23 17:20:47,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 17:20:47,054 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 [2021-11-23 17:20:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:47,062 INFO L225 Difference]: With dead ends: 86 [2021-11-23 17:20:47,062 INFO L226 Difference]: Without dead ends: 41 [2021-11-23 17:20:47,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:20:47,068 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:47,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:20:47,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-23 17:20:47,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-23 17:20:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 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) [2021-11-23 17:20:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2021-11-23 17:20:47,099 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 11 [2021-11-23 17:20:47,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:47,099 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2021-11-23 17:20:47,099 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) [2021-11-23 17:20:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-11-23 17:20:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 17:20:47,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:47,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:47,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:47,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:47,315 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:47,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:47,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1102347550, now seen corresponding path program 1 times [2021-11-23 17:20:47,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:47,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244158649] [2021-11-23 17:20:47,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:47,318 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:47,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:47,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:47,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:20:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:47,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 17:20:47,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:48,631 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:48,631 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:48,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244158649] [2021-11-23 17:20:48,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244158649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:48,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:48,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:20:48,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242400539] [2021-11-23 17:20:48,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:48,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:20:48,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:48,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:20:48,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:20:48,635 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:48,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:48,647 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2021-11-23 17:20:48,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:20:48,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 17:20:48,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:48,649 INFO L225 Difference]: With dead ends: 68 [2021-11-23 17:20:48,649 INFO L226 Difference]: Without dead ends: 39 [2021-11-23 17:20:48,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:20:48,651 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:48,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 34 Unchecked, 0.0s Time] [2021-11-23 17:20:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-23 17:20:48,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-23 17:20:48,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 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) [2021-11-23 17:20:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2021-11-23 17:20:48,664 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 12 [2021-11-23 17:20:48,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:48,664 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-11-23 17:20:48,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:48,665 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2021-11-23 17:20:48,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 17:20:48,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:48,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:48,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 17:20:48,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:48,880 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:48,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:48,881 INFO L85 PathProgramCache]: Analyzing trace with hash -5323571, now seen corresponding path program 1 times [2021-11-23 17:20:48,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:48,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093263414] [2021-11-23 17:20:48,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:48,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:48,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:48,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:48,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:20:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:49,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 17:20:49,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:50,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:50,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:50,002 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:50,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093263414] [2021-11-23 17:20:50,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093263414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:50,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:50,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:20:50,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456983909] [2021-11-23 17:20:50,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:50,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:20:50,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:50,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:20:50,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:20:50,005 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:50,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:50,011 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-11-23 17:20:50,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:20:50,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 17:20:50,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:50,012 INFO L225 Difference]: With dead ends: 48 [2021-11-23 17:20:50,013 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 17:20:50,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:20:50,015 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:50,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 14 Unchecked, 0.0s Time] [2021-11-23 17:20:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 17:20:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 17:20:50,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-11-23 17:20:50,021 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2021-11-23 17:20:50,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:50,021 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-11-23 17:20:50,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:50,022 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-11-23 17:20:50,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 17:20:50,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:50,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:50,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:50,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:50,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:50,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:50,243 INFO L85 PathProgramCache]: Analyzing trace with hash -691534902, now seen corresponding path program 1 times [2021-11-23 17:20:50,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:50,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608897274] [2021-11-23 17:20:50,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:50,244 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:50,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:50,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:50,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:20:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:50,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 17:20:50,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:50,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2021-11-23 17:20:52,359 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 17:20:52,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2021-11-23 17:20:52,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 17:20:53,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:53,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:53,659 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:53,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608897274] [2021-11-23 17:20:53,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608897274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:53,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:53,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 17:20:53,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074261948] [2021-11-23 17:20:53,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:53,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 17:20:53,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:53,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 17:20:53,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:20:53,662 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-11-23 17:20:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:53,673 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-11-23 17:20:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 17:20:53,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 [2021-11-23 17:20:53,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:53,674 INFO L225 Difference]: With dead ends: 30 [2021-11-23 17:20:53,674 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 17:20:53,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:20:53,680 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:53,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 55 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 13 Unchecked, 0.0s Time] [2021-11-23 17:20:53,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 17:20:53,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 17:20:53,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-23 17:20:53,685 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2021-11-23 17:20:53,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:53,685 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-23 17:20:53,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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) [2021-11-23 17:20:53,686 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-23 17:20:53,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 17:20:53,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:53,687 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:53,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:53,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:53,906 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:53,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:53,907 INFO L85 PathProgramCache]: Analyzing trace with hash -129518544, now seen corresponding path program 1 times [2021-11-23 17:20:53,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:53,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104128604] [2021-11-23 17:20:53,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:53,908 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:53,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:53,909 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:53,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:20:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:54,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 17:20:54,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:55,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:55,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:55,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:55,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104128604] [2021-11-23 17:20:55,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104128604] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:55,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:55,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:20:55,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52990906] [2021-11-23 17:20:55,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:55,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:20:55,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:55,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:20:55,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:20:55,360 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:55,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:55,363 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-11-23 17:20:55,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:20:55,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 17:20:55,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:55,363 INFO L225 Difference]: With dead ends: 31 [2021-11-23 17:20:55,364 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 17:20:55,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:20:55,365 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:55,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2021-11-23 17:20:55,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 17:20:55,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 17:20:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:55,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-23 17:20:55,370 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 16 [2021-11-23 17:20:55,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:55,370 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-23 17:20:55,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:55,371 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-23 17:20:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 17:20:55,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:55,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:55,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:55,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:55,584 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:55,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:55,585 INFO L85 PathProgramCache]: Analyzing trace with hash -72260242, now seen corresponding path program 1 times [2021-11-23 17:20:55,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:55,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338069075] [2021-11-23 17:20:55,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:55,586 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:55,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:55,587 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:55,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 17:20:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:55,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 17:20:55,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:56,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:56,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:56,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338069075] [2021-11-23 17:20:56,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338069075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:56,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:56,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:20:56,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668022958] [2021-11-23 17:20:56,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:56,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:20:56,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:56,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:20:56,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:20:56,165 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:56,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:56,430 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-11-23 17:20:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:20:56,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 17:20:56,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:56,431 INFO L225 Difference]: With dead ends: 24 [2021-11-23 17:20:56,431 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 17:20:56,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:20:56,433 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:56,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 53 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:20:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 17:20:56,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 17:20:56,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.0) internal successors, (20), 20 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:56,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2021-11-23 17:20:56,438 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2021-11-23 17:20:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:56,438 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2021-11-23 17:20:56,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:56,439 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2021-11-23 17:20:56,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 17:20:56,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:20:56,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:56,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:56,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:56,641 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:20:56,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:20:56,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1346464765, now seen corresponding path program 1 times [2021-11-23 17:20:56,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:20:56,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239728995] [2021-11-23 17:20:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:20:56,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:20:56,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:20:56,643 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:20:56,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 17:20:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:20:56,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 17:20:56,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:20:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:20:58,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:20:58,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:20:58,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239728995] [2021-11-23 17:20:58,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1239728995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:20:58,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:20:58,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 17:20:58,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941044414] [2021-11-23 17:20:58,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:20:58,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 17:20:58,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:20:58,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 17:20:58,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-23 17:20:58,082 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:59,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:20:59,027 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-11-23 17:20:59,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 17:20:59,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-23 17:20:59,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:20:59,028 INFO L225 Difference]: With dead ends: 21 [2021-11-23 17:20:59,028 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:20:59,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-23 17:20:59,030 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 17:20:59,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 86 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 5 Unchecked, 0.3s Time] [2021-11-23 17:20:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:20:59,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:20:59,032 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) [2021-11-23 17:20:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:20:59,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-11-23 17:20:59,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:20:59,033 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:20:59,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:20:59,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:20:59,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:20:59,036 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:20:59,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 17:20:59,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:20:59,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:20:59,670 INFO L861 garLoopResultBuilder]: At program point L159(lines 145 160) the Hoare annotation is: true [2021-11-23 17:20:59,670 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 71) no Hoare annotation was computed. [2021-11-23 17:20:59,671 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-11-23 17:20:59,671 INFO L854 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2021-11-23 17:20:59,671 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 130) no Hoare annotation was computed. [2021-11-23 17:20:59,671 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:20:59,671 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:20:59,671 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-11-23 17:20:59,671 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-11-23 17:20:59,672 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19#1| (= |ULTIMATE.start_main_~res~0#1| (_ +zero 11 53)) (= (_ +zero 11 53) |ULTIMATE.start___signbit_double_~x#1|) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_exp_#res#1|)) [2021-11-23 17:20:59,672 INFO L858 garLoopResultBuilder]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2021-11-23 17:20:59,672 INFO L858 garLoopResultBuilder]: For program point L70-2(line 70) no Hoare annotation was computed. [2021-11-23 17:20:59,672 INFO L858 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-11-23 17:20:59,672 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_27| (_ BitVec 64))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10|) (_ bv4 32)))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_27|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_27|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_27|)) |ULTIMATE.start___ieee754_exp_~x#1|) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_27|) .cse0) (= (bvand (_ bv2147483647 32) .cse0) |ULTIMATE.start___ieee754_exp_~hx~0#1|)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_exp_~x#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) (exists ((|v_skolemized_q#valueAsBitvector_32| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_32|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_32|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_32|))) (= |ULTIMATE.start___ieee754_exp_~xsb~0#1| (bvand (_ bv1 32) (bvlshr ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_32|) (_ bv31 32))))))) [2021-11-23 17:20:59,673 INFO L858 garLoopResultBuilder]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2021-11-23 17:20:59,673 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 88) no Hoare annotation was computed. [2021-11-23 17:20:59,673 INFO L858 garLoopResultBuilder]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2021-11-23 17:20:59,673 INFO L858 garLoopResultBuilder]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2021-11-23 17:20:59,673 INFO L854 garLoopResultBuilder]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2021-11-23 17:20:59,673 INFO L854 garLoopResultBuilder]: At program point L129(lines 46 131) the Hoare annotation is: (= (_ +zero 11 53) |ULTIMATE.start___ieee754_exp_#res#1|) [2021-11-23 17:20:59,674 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-11-23 17:20:59,674 INFO L858 garLoopResultBuilder]: For program point L154-2(lines 154 157) no Hoare annotation was computed. [2021-11-23 17:20:59,674 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-11-23 17:20:59,674 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-23 17:20:59,674 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2021-11-23 17:20:59,674 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:20:59,675 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 128) no Hoare annotation was computed. [2021-11-23 17:20:59,675 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 93) no Hoare annotation was computed. [2021-11-23 17:20:59,675 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2021-11-23 17:20:59,675 INFO L858 garLoopResultBuilder]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2021-11-23 17:20:59,675 INFO L858 garLoopResultBuilder]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2021-11-23 17:20:59,675 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2021-11-23 17:20:59,675 INFO L858 garLoopResultBuilder]: For program point L74(lines 74 75) no Hoare annotation was computed. [2021-11-23 17:20:59,676 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:20:59,676 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-11-23 17:20:59,676 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 76) no Hoare annotation was computed. [2021-11-23 17:20:59,676 INFO L858 garLoopResultBuilder]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2021-11-23 17:20:59,676 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-11-23 17:20:59,676 INFO L854 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_exp_~x#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2021-11-23 17:20:59,677 INFO L858 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-11-23 17:20:59,677 INFO L854 garLoopResultBuilder]: At program point L142(lines 133 143) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19#1| (= (_ bv0 32) |ULTIMATE.start___signbit_double_#res#1|) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_exp_#res#1|)) [2021-11-23 17:20:59,677 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-11-23 17:20:59,677 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2021-11-23 17:20:59,677 INFO L858 garLoopResultBuilder]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2021-11-23 17:20:59,681 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:20:59,683 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:20:59,690 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,691 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,698 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,700 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] [2021-11-23 17:20:59,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] [2021-11-23 17:20:59,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:20:59 BoogieIcfgContainer [2021-11-23 17:20:59,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:20:59,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:20:59,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:20:59,714 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:20:59,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:20:46" (3/4) ... [2021-11-23 17:20:59,718 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:20:59,733 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-23 17:20:59,734 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 17:20:59,734 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:20:59,735 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:20:59,761 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-11-23 17:20:59,762 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10 : bv32, v_skolemized_q#valueAsBitvector_27 : bv64 :: (~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_27[63:63], v_skolemized_q#valueAsBitvector_27[62:52], v_skolemized_q#valueAsBitvector_27[51:0]) == x && v_skolemized_q#valueAsBitvector_27[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10][4bv32]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10][4bv32]) == hx) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && (\exists v_skolemized_q#valueAsBitvector_32 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_32[63:63], v_skolemized_q#valueAsBitvector_32[62:52], v_skolemized_q#valueAsBitvector_32[51:0]) && xsb == ~bvand32(1bv32, ~bvlshr32(v_skolemized_q#valueAsBitvector_32[63:32], 31bv32))) [2021-11-23 17:20:59,762 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == \result [2021-11-23 17:20:59,763 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-res == 0.0 && __signbit_double(res) == 0-aux && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result [2021-11-23 17:20:59,764 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result) && ~Pluszero~LONGDOUBLE() == \result [2021-11-23 17:20:59,819 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:20:59,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:20:59,820 INFO L158 Benchmark]: Toolchain (without parser) took 26299.09ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 42.1MB in the beginning and 43.3MB in the end (delta: -1.2MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2021-11-23 17:20:59,820 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 62.9MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:20:59,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.57ms. Allocated memory is still 62.9MB. Free memory was 41.9MB in the beginning and 42.8MB in the end (delta: -911.9kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:20:59,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.02ms. Allocated memory is still 62.9MB. Free memory was 42.8MB in the beginning and 40.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:59,821 INFO L158 Benchmark]: Boogie Preprocessor took 87.81ms. Allocated memory is still 62.9MB. Free memory was 40.5MB in the beginning and 38.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:59,822 INFO L158 Benchmark]: RCFGBuilder took 12133.48ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 38.4MB in the beginning and 69.9MB in the end (delta: -31.5MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-23 17:20:59,823 INFO L158 Benchmark]: TraceAbstraction took 13507.27ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 52.4MB in the end (delta: 17.1MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-23 17:20:59,823 INFO L158 Benchmark]: Witness Printer took 106.00ms. Allocated memory is still 96.5MB. Free memory was 52.4MB in the beginning and 43.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:20:59,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 62.9MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.57ms. Allocated memory is still 62.9MB. Free memory was 41.9MB in the beginning and 42.8MB in the end (delta: -911.9kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.02ms. Allocated memory is still 62.9MB. Free memory was 42.8MB in the beginning and 40.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.81ms. Allocated memory is still 62.9MB. Free memory was 40.5MB in the beginning and 38.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 12133.48ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 38.4MB in the beginning and 69.9MB in the end (delta: -31.5MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 13507.27ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 52.4MB in the end (delta: 17.1MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 106.00ms. Allocated memory is still 96.5MB. Free memory was 52.4MB in the beginning and 43.3MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 155]: 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, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 517 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 75 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 182 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 37, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 99 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 95 ConstructedInterpolants, 28 QuantifiedInterpolants, 771 SizeOfPredicates, 35 NumberOfNonLiveVariables, 664 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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: 51]: Loop Invariant [2021-11-23 17:20:59,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 62]: Loop Invariant [2021-11-23 17:20:59,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] [2021-11-23 17:20:59,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] [2021-11-23 17:20:59,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_27,QUANTIFIED] [2021-11-23 17:20:59,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] [2021-11-23 17:20:59,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10,QUANTIFIED] [2021-11-23 17:20:59,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-23 17:20:59,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] [2021-11-23 17:20:59,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_32,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10 : bv32, v_skolemized_q#valueAsBitvector_27 : bv64 :: (~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_27[63:63], v_skolemized_q#valueAsBitvector_27[62:52], v_skolemized_q#valueAsBitvector_27[51:0]) == x && v_skolemized_q#valueAsBitvector_27[63:32] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10][4bv32]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0#1.base_10][4bv32]) == hx) && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && (\exists v_skolemized_q#valueAsBitvector_32 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_32[63:63], v_skolemized_q#valueAsBitvector_32[62:52], v_skolemized_q#valueAsBitvector_32[51:0]) && xsb == ~bvand32(1bv32, ~bvlshr32(v_skolemized_q#valueAsBitvector_32[63:32], 31bv32))) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((aux-res == 0.0 && __signbit_double(res) == 0-aux && res == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (aux-res == 0.0 && __signbit_double(res) == 0-aux && 0bv32 == \result) && ~Pluszero~LONGDOUBLE() == \result RESULT: Ultimate proved your program to be correct! [2021-11-23 17:21:00,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bf57dd2-2c89-41cd-9984-bd1b5b0922e6/bin/utaipan-fb15Y9Yzbl/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