./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH --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 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:29:30,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:29:30,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:29:30,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:29:30,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:29:30,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:29:30,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:29:30,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:29:30,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:29:30,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:29:30,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:29:30,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:29:30,477 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:29:30,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:29:30,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:29:30,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:29:30,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:29:30,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:29:30,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:29:30,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:29:30,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:29:30,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:29:30,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:29:30,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:29:30,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:29:30,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:29:30,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:29:30,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:29:30,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:29:30,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:29:30,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:29:30,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:29:30,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:29:30,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:29:30,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:29:30,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:29:30,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:29:30,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:29:30,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:29:30,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:29:30,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:29:30,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:29:30,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:29:30,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:29:30,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:29:30,543 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:29:30,543 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:29:30,544 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:29:30,544 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:29:30,545 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:29:30,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:29:30,546 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:29:30,546 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:29:30,546 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:29:30,547 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:29:30,547 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:29:30,547 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:29:30,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:29:30,548 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:29:30,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:29:30,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:29:30,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:29:30,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:29:30,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:29:30,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:29:30,550 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:29:30,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:29:30,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:29:30,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:29:30,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:29:30,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:29:30,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:29:30,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:29:30,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:29:30,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:29:30,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:29:30,554 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:29:30,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:29:30,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:29:30,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:29:30,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:29:30,555 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_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2021-11-03 05:29:30,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:29:30,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:29:30,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:29:30,869 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:29:30,870 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:29:30,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-11-03 05:29:30,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data/0fe4f74cb/ec69c31757ba44b9a1c4dba1a766eda1/FLAG03b52864b [2021-11-03 05:29:31,414 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:29:31,415 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-11-03 05:29:31,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data/0fe4f74cb/ec69c31757ba44b9a1c4dba1a766eda1/FLAG03b52864b [2021-11-03 05:29:31,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data/0fe4f74cb/ec69c31757ba44b9a1c4dba1a766eda1 [2021-11-03 05:29:31,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:29:31,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:29:31,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:29:31,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:29:31,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:29:31,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:29:31" (1/1) ... [2021-11-03 05:29:31,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da05c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:31, skipping insertion in model container [2021-11-03 05:29:31,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:29:31" (1/1) ... [2021-11-03 05:29:31,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:29:31,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:29:32,090 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-11-03 05:29:32,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:29:32,104 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:29:32,130 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-11-03 05:29:32,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:29:32,145 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:29:32,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32 WrapperNode [2021-11-03 05:29:32,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:29:32,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:29:32,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:29:32,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:29:32,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:29:32,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:29:32,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:29:32,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:29:32,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:29:32,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:29:32,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:29:32,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:29:32,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (1/1) ... [2021-11-03 05:29:32,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:29:32,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:29:32,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:29:32,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:29:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:29:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:29:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-03 05:29:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:29:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-03 05:29:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:29:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:29:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 05:29:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:29:33,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:29:33,033 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-03 05:29:33,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:29:33 BoogieIcfgContainer [2021-11-03 05:29:33,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:29:33,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:29:33,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:29:33,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:29:33,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:29:31" (1/3) ... [2021-11-03 05:29:33,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b13b123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:29:33, skipping insertion in model container [2021-11-03 05:29:33,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:32" (2/3) ... [2021-11-03 05:29:33,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b13b123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:29:33, skipping insertion in model container [2021-11-03 05:29:33,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:29:33" (3/3) ... [2021-11-03 05:29:33,044 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2021-11-03 05:29:33,049 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:29:33,050 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:29:33,094 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:29:33,106 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 [2021-11-03 05:29:33,106 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:29:33,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:29:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 05:29:33,122 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:29:33,122 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:29:33,123 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:29:33,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:29:33,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1181666889, now seen corresponding path program 1 times [2021-11-03 05:29:33,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:29:33,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316587164] [2021-11-03 05:29:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:29:33,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:29:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:29:33,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:29:33,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 05:29:33,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316587164] [2021-11-03 05:29:33,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316587164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:29:33,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:29:33,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 05:29:33,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123000480] [2021-11-03 05:29:33,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:29:33,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 05:29:33,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:29:33,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:29:33,302 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-03 05:29:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:29:33,318 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2021-11-03 05:29:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:29:33,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-03 05:29:33,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:29:33,328 INFO L225 Difference]: With dead ends: 35 [2021-11-03 05:29:33,329 INFO L226 Difference]: Without dead ends: 16 [2021-11-03 05:29:33,332 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:29:33,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-03 05:29:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-03 05:29:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) [2021-11-03 05:29:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-11-03 05:29:33,364 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2021-11-03 05:29:33,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:29:33,377 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-11-03 05:29:33,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-03 05:29:33,377 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-11-03 05:29:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 05:29:33,378 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:29:33,378 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:29:33,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:29:33,380 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:29:33,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:29:33,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1211032174, now seen corresponding path program 1 times [2021-11-03 05:29:33,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:29:33,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83320040] [2021-11-03 05:29:33,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:29:33,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:29:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:29:33,472 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 05:29:33,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:29:33,525 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 05:29:33,526 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 05:29:33,527 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:29:33,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 05:29:33,532 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-03 05:29:33,535 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:29:33,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:29:33 BoogieIcfgContainer [2021-11-03 05:29:33,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:29:33,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:29:33,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:29:33,559 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:29:33,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:29:33" (3/4) ... [2021-11-03 05:29:33,562 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 05:29:33,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:29:33,564 INFO L168 Benchmark]: Toolchain (without parser) took 1740.33 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 49.4 MB in the beginning and 75.9 MB in the end (delta: -26.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:33,565 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 58.1 MB in the beginning and 58.0 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:33,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.62 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 49.2 MB in the beginning and 82.3 MB in the end (delta: -33.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:33,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.69 ms. Allocated memory is still 107.0 MB. Free memory was 82.3 MB in the beginning and 80.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:33,567 INFO L168 Benchmark]: Boogie Preprocessor took 29.68 ms. Allocated memory is still 107.0 MB. Free memory was 80.8 MB in the beginning and 79.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:33,568 INFO L168 Benchmark]: RCFGBuilder took 801.04 ms. Allocated memory is still 107.0 MB. Free memory was 79.0 MB in the beginning and 58.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:33,568 INFO L168 Benchmark]: TraceAbstraction took 520.76 ms. Allocated memory is still 107.0 MB. Free memory was 57.7 MB in the beginning and 75.9 MB in the end (delta: -18.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:33,569 INFO L168 Benchmark]: Witness Printer took 3.99 ms. Allocated memory is still 107.0 MB. Free memory is still 75.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:33,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 58.1 MB in the beginning and 58.0 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.62 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 49.2 MB in the beginning and 82.3 MB in the end (delta: -33.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.69 ms. Allocated memory is still 107.0 MB. Free memory was 82.3 MB in the beginning and 80.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.68 ms. Allocated memory is still 107.0 MB. Free memory was 80.8 MB in the beginning and 79.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 801.04 ms. Allocated memory is still 107.0 MB. Free memory was 79.0 MB in the beginning and 58.1 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 520.76 ms. Allocated memory is still 107.0 MB. Free memory was 57.7 MB in the beginning and 75.9 MB in the end (delta: -18.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.99 ms. Allocated memory is still 107.0 MB. Free memory is still 75.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 97]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55, overapproximation of bitwiseAnd at line 30. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; [L92] double x = 0.0 / 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L53] COND TRUE j0 > 51 [L54] COND FALSE !(j0 == 0x400) [L57] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double res = ceil_double(x); [L17] return x != x; [L96] COND TRUE !isnan_double(res) [L97] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 05:29:33,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/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_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH --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 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:29:35,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:29:35,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:29:35,979 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:29:35,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:29:35,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:29:35,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:29:35,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:29:35,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:29:35,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:29:35,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:29:35,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:29:35,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:29:35,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:29:35,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:29:35,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:29:35,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:29:36,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:29:36,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:29:36,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:29:36,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:29:36,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:29:36,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:29:36,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:29:36,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:29:36,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:29:36,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:29:36,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:29:36,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:29:36,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:29:36,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:29:36,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:29:36,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:29:36,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:29:36,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:29:36,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:29:36,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:29:36,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:29:36,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:29:36,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:29:36,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:29:36,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:29:36,107 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:29:36,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:29:36,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:29:36,109 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:29:36,109 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:29:36,110 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:29:36,110 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:29:36,110 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:29:36,110 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:29:36,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:29:36,112 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:29:36,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:29:36,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:29:36,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:29:36,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:29:36,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:29:36,114 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:29:36,114 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:29:36,114 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:29:36,114 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:29:36,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:29:36,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:29:36,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:29:36,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:29:36,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:29:36,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:29:36,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:29:36,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:29:36,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:29:36,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:29:36,116 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:29:36,117 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:29:36,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:29:36,117 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:29:36,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:29:36,117 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_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ead6fe7830da205228466fa2d47f2a018c45d096ed1f821ce96b27193830e65 [2021-11-03 05:29:36,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:29:36,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:29:36,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:29:36,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:29:36,560 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:29:36,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-11-03 05:29:36,648 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data/a5410878f/2f6451378e334c9393de1c7d42abf3f0/FLAG68b4a1500 [2021-11-03 05:29:37,245 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:29:37,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2021-11-03 05:29:37,255 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data/a5410878f/2f6451378e334c9393de1c7d42abf3f0/FLAG68b4a1500 [2021-11-03 05:29:37,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/data/a5410878f/2f6451378e334c9393de1c7d42abf3f0 [2021-11-03 05:29:37,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:29:37,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:29:37,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:29:37,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:29:37,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:29:37,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:37,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375a8b89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37, skipping insertion in model container [2021-11-03 05:29:37,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:37,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:29:37,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:29:37,852 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-11-03 05:29:37,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:29:37,866 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:29:37,913 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/sv-benchmarks/c/float-newlib/double_req_bl_1091.c[2108,2121] [2021-11-03 05:29:37,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:29:37,935 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:29:37,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37 WrapperNode [2021-11-03 05:29:37,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:29:37,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:29:37,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:29:37,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:29:37,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:37,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:37,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:29:37,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:29:37,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:29:37,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:29:37,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:37,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:38,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:38,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:38,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:38,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:38,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:38,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:29:38,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:29:38,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:29:38,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:29:38,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (1/1) ... [2021-11-03 05:29:38,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:29:38,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:29:38,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:29:38,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:29:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-03 05:29:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-03 05:29:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:29:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:29:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:29:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:29:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:29:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:29:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:29:39,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:29:39,576 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-03 05:29:39,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:29:39 BoogieIcfgContainer [2021-11-03 05:29:39,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:29:39,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:29:39,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:29:39,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:29:39,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:29:37" (1/3) ... [2021-11-03 05:29:39,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61dd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:29:39, skipping insertion in model container [2021-11-03 05:29:39,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:29:37" (2/3) ... [2021-11-03 05:29:39,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61dd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:29:39, skipping insertion in model container [2021-11-03 05:29:39,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:29:39" (3/3) ... [2021-11-03 05:29:39,586 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2021-11-03 05:29:39,590 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:29:39,591 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:29:39,636 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:29:39,641 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 [2021-11-03 05:29:39,641 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:29:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 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) [2021-11-03 05:29:39,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 05:29:39,659 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:29:39,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:29:39,660 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:29:39,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:29:39,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2021-11-03 05:29:39,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:29:39,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695331945] [2021-11-03 05:29:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:29:39,679 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:29:39,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:29:39,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:29:39,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:29:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:29:39,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:29:39,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:29:39,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:29:39,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:29:39,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:29:39,956 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:29:39,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695331945] [2021-11-03 05:29:39,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695331945] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:29:39,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:29:39,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:29:39,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816219188] [2021-11-03 05:29:39,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:29:39,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:29:39,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:29:39,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:29:39,978 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.65625) internal successors, (53), 33 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) 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) [2021-11-03 05:29:39,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:29:39,995 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2021-11-03 05:29:39,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:29:39,996 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 [2021-11-03 05:29:39,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:29:40,004 INFO L225 Difference]: With dead ends: 66 [2021-11-03 05:29:40,005 INFO L226 Difference]: Without dead ends: 31 [2021-11-03 05:29:40,007 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:29:40,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-03 05:29:40,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-03 05:29:40,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 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) [2021-11-03 05:29:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2021-11-03 05:29:40,038 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2021-11-03 05:29:40,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:29:40,039 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2021-11-03 05:29:40,039 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) [2021-11-03 05:29:40,039 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-11-03 05:29:40,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 05:29:40,040 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:29:40,040 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:29:40,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:29:40,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:29:40,254 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:29:40,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:29:40,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2021-11-03 05:29:40,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:29:40,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749193520] [2021-11-03 05:29:40,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:29:40,256 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:29:40,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:29:40,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:29:40,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:29:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:29:40,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-03 05:29:40,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:29:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:29:40,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:29:40,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:29:40,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:29:40,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749193520] [2021-11-03 05:29:40,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749193520] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:29:40,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:29:40,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-03 05:29:40,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891521161] [2021-11-03 05:29:40,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:29:40,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:29:40,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:29:40,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:29:40,822 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-11-03 05:29:41,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:29:41,944 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2021-11-03 05:29:41,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:29:41,945 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) Word has length 12 [2021-11-03 05:29:41,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:29:41,946 INFO L225 Difference]: With dead ends: 42 [2021-11-03 05:29:41,946 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 05:29:41,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-11-03 05:29:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 05:29:41,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-03 05:29:41,949 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) [2021-11-03 05:29:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-03 05:29:41,950 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2021-11-03 05:29:41,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:29:41,951 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-03 05:29:41,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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) [2021-11-03 05:29:41,951 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-03 05:29:41,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 05:29:41,952 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:29:41,952 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:29:41,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:29:42,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:29:42,154 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:29:42,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:29:42,154 INFO L85 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2021-11-03 05:29:42,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:29:42,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189319737] [2021-11-03 05:29:42,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:29:42,156 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:29:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:29:42,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:29:42,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:29:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:29:42,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:29:42,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:29:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:29:42,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:29:42,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:29:42,870 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:29:42,871 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189319737] [2021-11-03 05:29:42,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189319737] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:29:42,871 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:29:42,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 05:29:42,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707035544] [2021-11-03 05:29:42,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:29:42,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:29:42,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:29:42,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:29:42,873 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:29:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:29:43,098 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-11-03 05:29:43,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:29:43,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 05:29:43,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:29:43,100 INFO L225 Difference]: With dead ends: 21 [2021-11-03 05:29:43,100 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 05:29:43,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:29:43,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 05:29:43,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 05:29:43,102 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) [2021-11-03 05:29:43,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 05:29:43,102 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-03 05:29:43,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:29:43,102 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 05:29:43,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:29:43,103 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 05:29:43,103 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 05:29:43,108 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:29:43,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:29:43,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:29:43,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 05:29:43,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:29:43,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:29:43,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:29:43,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 05:29:43,443 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2021-11-03 05:29:43,443 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-03 05:29:43,443 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 05:29:43,443 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 05:29:43,443 INFO L857 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2021-11-03 05:29:43,444 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 40) no Hoare annotation was computed. [2021-11-03 05:29:43,444 INFO L857 garLoopResultBuilder]: For program point L62(lines 62 74) no Hoare annotation was computed. [2021-11-03 05:29:43,444 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 57) no Hoare annotation was computed. [2021-11-03 05:29:43,444 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 51) no Hoare annotation was computed. [2021-11-03 05:29:43,444 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 99) no Hoare annotation was computed. [2021-11-03 05:29:43,444 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-11-03 05:29:43,445 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-11-03 05:29:43,445 INFO L857 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-11-03 05:29:43,445 INFO L857 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-11-03 05:29:43,445 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-11-03 05:29:43,445 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 71) no Hoare annotation was computed. [2021-11-03 05:29:43,445 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2021-11-03 05:29:43,445 INFO L857 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2021-11-03 05:29:43,445 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 05:29:43,446 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2021-11-03 05:29:43,446 INFO L857 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2021-11-03 05:29:43,446 INFO L853 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) [2021-11-03 05:29:43,446 INFO L857 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2021-11-03 05:29:43,446 INFO L853 garLoopResultBuilder]: At program point L82(lines 21 83) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|))) [2021-11-03 05:29:43,447 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 41) no Hoare annotation was computed. [2021-11-03 05:29:43,447 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 05:29:43,447 INFO L853 garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|))) [2021-11-03 05:29:43,447 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 40) no Hoare annotation was computed. [2021-11-03 05:29:43,447 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2021-11-03 05:29:43,447 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2021-11-03 05:29:43,447 INFO L857 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2021-11-03 05:29:43,448 INFO L860 garLoopResultBuilder]: At program point L101(lines 85 102) the Hoare annotation is: true [2021-11-03 05:29:43,448 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 69) no Hoare annotation was computed. [2021-11-03 05:29:43,448 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-11-03 05:29:43,451 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-03 05:29:43,458 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:29:43,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:29:43 BoogieIcfgContainer [2021-11-03 05:29:43,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:29:43,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:29:43,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:29:43,476 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:29:43,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:29:39" (3/4) ... [2021-11-03 05:29:43,479 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 05:29:43,492 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-03 05:29:43,493 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-03 05:29:43,493 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 05:29:43,493 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 05:29:43,521 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) [2021-11-03 05:29:43,522 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && !~fp.eq~DOUBLE(x, x)) && !~fp.eq~DOUBLE(\result, \result) [2021-11-03 05:29:43,552 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 05:29:43,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:29:43,554 INFO L168 Benchmark]: Toolchain (without parser) took 5960.18 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 48.2 MB in the beginning and 64.7 MB in the end (delta: -16.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:43,554 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 69.2 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:43,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.68 ms. Allocated memory is still 69.2 MB. Free memory was 48.0 MB in the beginning and 36.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:43,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 69.2 MB. Free memory was 36.8 MB in the beginning and 52.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:43,556 INFO L168 Benchmark]: Boogie Preprocessor took 54.89 ms. Allocated memory is still 69.2 MB. Free memory was 52.7 MB in the beginning and 51.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:43,556 INFO L168 Benchmark]: RCFGBuilder took 1536.32 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 38.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:43,557 INFO L168 Benchmark]: TraceAbstraction took 3894.34 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 37.8 MB in the beginning and 68.2 MB in the end (delta: -30.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:29:43,557 INFO L168 Benchmark]: Witness Printer took 77.69 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 64.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:29:43,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 69.2 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 338.68 ms. Allocated memory is still 69.2 MB. Free memory was 48.0 MB in the beginning and 36.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.01 ms. Allocated memory is still 69.2 MB. Free memory was 36.8 MB in the beginning and 52.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.89 ms. Allocated memory is still 69.2 MB. Free memory was 52.7 MB in the beginning and 51.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1536.32 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 38.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3894.34 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 37.8 MB in the beginning and 68.2 MB in the end (delta: -30.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 77.69 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 64.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 97]: 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, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 32 SDslu, 90 SDs, 0 SdLazy, 69 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 249 SizeOfPredicates, 18 NumberOfNonLiveVariables, 145 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (1bv32 == \result && !~fp.eq~DOUBLE(x, x)) && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) RESULT: Ultimate proved your program to be correct! [2021-11-03 05:29:43,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c18f9a50-0ba2-4a86-af27-c97df7afea47/bin/utaipan-aC7eJsxGYH/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