./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22112bf5fec517f156789ccf9f4e6d3a5bacd7e511b4f0e72a5035e85c02df36 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22112bf5fec517f156789ccf9f4e6d3a5bacd7e511b4f0e72a5035e85c02df36 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:44:06,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:44:06,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:44:06,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:44:06,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:44:06,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:44:06,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:44:06,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:44:06,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:44:06,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:44:06,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:44:06,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:44:06,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:44:06,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:44:06,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:44:06,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:44:06,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:44:06,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:44:06,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:44:06,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:44:06,229 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:44:06,231 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:44:06,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:44:06,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:44:06,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:44:06,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:44:06,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:44:06,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:44:06,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:44:06,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:44:06,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:44:06,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:44:06,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:44:06,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:44:06,266 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:44:06,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:44:06,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:44:06,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:44:06,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:44:06,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:44:06,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:44:06,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:44:06,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:44:06,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:44:06,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:44:06,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:44:06,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:44:06,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:44:06,333 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:44:06,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:44:06,334 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:44:06,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:44:06,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:44:06,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:44:06,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:44:06,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:44:06,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:44:06,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:44:06,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:44:06,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:44:06,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:44:06,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:44:06,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:44:06,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:44:06,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:44:06,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:44:06,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:44:06,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:44:06,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:44:06,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:44:06,341 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:44:06,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:44:06,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:44:06,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:44:06,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22112bf5fec517f156789ccf9f4e6d3a5bacd7e511b4f0e72a5035e85c02df36 [2021-10-21 19:44:06,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:44:06,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:44:06,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:44:06,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:44:06,681 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:44:06,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2021-10-21 19:44:06,761 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data/631a2dceb/cd63a27d418d44f992650dc3d7c8d8c3/FLAGc16059219 [2021-10-21 19:44:07,283 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:44:07,283 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2021-10-21 19:44:07,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data/631a2dceb/cd63a27d418d44f992650dc3d7c8d8c3/FLAGc16059219 [2021-10-21 19:44:07,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data/631a2dceb/cd63a27d418d44f992650dc3d7c8d8c3 [2021-10-21 19:44:07,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:44:07,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:44:07,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:07,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:44:07,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:44:07,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:07,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8a32ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07, skipping insertion in model container [2021-10-21 19:44:07,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:07,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:44:07,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:44:07,858 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_947566f5-a029-4415-8942-b6c55597dd37/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2021-10-21 19:44:07,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:07,870 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:44:07,906 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_947566f5-a029-4415-8942-b6c55597dd37/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2021-10-21 19:44:07,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:07,922 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:44:07,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07 WrapperNode [2021-10-21 19:44:07,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:07,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:07,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:44:07,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:44:07,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:07,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:07,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:07,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:44:07,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:44:07,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:44:07,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:07,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:08,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:08,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:08,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:08,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:08,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:08,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:44:08,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:44:08,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:44:08,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:44:08,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (1/1) ... [2021-10-21 19:44:08,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:44:08,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:44:08,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:44:08,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:44:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:44:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:44:08,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-21 19:44:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:44:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-21 19:44:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:44:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:44:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:44:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:44:08,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:44:08,434 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-21 19:44:08,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:08 BoogieIcfgContainer [2021-10-21 19:44:08,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:44:08,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:44:08,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:44:08,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:44:08,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:44:07" (1/3) ... [2021-10-21 19:44:08,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456c5bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:44:08, skipping insertion in model container [2021-10-21 19:44:08,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:07" (2/3) ... [2021-10-21 19:44:08,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456c5bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:44:08, skipping insertion in model container [2021-10-21 19:44:08,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:08" (3/3) ... [2021-10-21 19:44:08,445 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2021-10-21 19:44:08,450 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:44:08,451 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:44:08,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:44:08,555 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=PETRI_NET, 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 [2021-10-21 19:44:08,562 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:44:08,590 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) [2021-10-21 19:44:08,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:44:08,607 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:44:08,608 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:44:08,608 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:44:08,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:08,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2021-10-21 19:44:08,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:08,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666383014] [2021-10-21 19:44:08,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:08,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:44:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:08,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:44:08,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666383014] [2021-10-21 19:44:08,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666383014] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:44:08,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:44:08,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:44:08,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104609472] [2021-10-21 19:44:08,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:44:08,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:44:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:44:08,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:44:08,896 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) [2021-10-21 19:44:08,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:44:08,931 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2021-10-21 19:44:08,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:44:08,933 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 [2021-10-21 19:44:08,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:44:08,962 INFO L225 Difference]: With dead ends: 66 [2021-10-21 19:44:08,964 INFO L226 Difference]: Without dead ends: 31 [2021-10-21 19:44:08,968 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:44:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-21 19:44:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-21 19:44:09,011 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) [2021-10-21 19:44:09,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2021-10-21 19:44:09,015 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2021-10-21 19:44:09,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:44:09,017 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2021-10-21 19:44:09,017 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) [2021-10-21 19:44:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-10-21 19:44:09,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:44:09,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:44:09,019 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:44:09,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:44:09,020 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:44:09,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:09,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2021-10-21 19:44:09,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:44:09,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690092731] [2021-10-21 19:44:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:09,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:44:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:09,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:44:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:44:09,266 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:09,266 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 19:44:09,269 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:44:09,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 19:44:09,280 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:44:09,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:44:09 BoogieIcfgContainer [2021-10-21 19:44:09,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:44:09,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:44:09,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:44:09,322 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:44:09,323 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:08" (3/4) ... [2021-10-21 19:44:09,327 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:44:09,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:44:09,330 INFO L168 Benchmark]: Toolchain (without parser) took 1700.94 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 83.5 MB in the beginning and 104.8 MB in the end (delta: -21.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:09,331 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 113.2 MB. Free memory was 66.7 MB in the beginning and 66.6 MB in the end (delta: 63.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:09,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.45 ms. Allocated memory is still 113.2 MB. Free memory was 83.3 MB in the beginning and 86.3 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:09,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.21 ms. Allocated memory is still 113.2 MB. Free memory was 86.1 MB in the beginning and 84.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:09,334 INFO L168 Benchmark]: Boogie Preprocessor took 56.87 ms. Allocated memory is still 113.2 MB. Free memory was 84.5 MB in the beginning and 83.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:09,334 INFO L168 Benchmark]: RCFGBuilder took 401.92 ms. Allocated memory is still 113.2 MB. Free memory was 82.9 MB in the beginning and 70.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:09,336 INFO L168 Benchmark]: TraceAbstraction took 883.09 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 69.8 MB in the beginning and 105.1 MB in the end (delta: -35.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:09,336 INFO L168 Benchmark]: Witness Printer took 5.68 ms. Allocated memory is still 140.5 MB. Free memory is still 105.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:09,341 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 113.2 MB. Free memory was 66.7 MB in the beginning and 66.6 MB in the end (delta: 63.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 294.45 ms. Allocated memory is still 113.2 MB. Free memory was 83.3 MB in the beginning and 86.3 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.21 ms. Allocated memory is still 113.2 MB. Free memory was 86.1 MB in the beginning and 84.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.87 ms. Allocated memory is still 113.2 MB. Free memory was 84.5 MB in the beginning and 83.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 401.92 ms. Allocated memory is still 113.2 MB. Free memory was 82.9 MB in the beginning and 70.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 883.09 ms. Allocated memory was 113.2 MB in the beginning and 140.5 MB in the end (delta: 27.3 MB). Free memory was 69.8 MB in the beginning and 105.1 MB in the end (delta: -35.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.68 ms. Allocated memory is still 140.5 MB. Free memory is still 105.1 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 95]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 39, overapproximation of bitwiseOr at line 40, overapproximation of someBinaryArithmeticDOUBLEoperation at line 90, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 82. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double res = floor_double(x); [L82] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] COND TRUE !isnan_double(res) [L95] reach_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 747.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 34.5ms, AutomataDifference: 112.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 29.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.4ms SsaConstructionTime, 134.8ms SatisfiabilityAnalysisTime, 77.2ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-10-21 19:44:09,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:44:12,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:44:12,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:44:12,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:44:12,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:44:12,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:44:12,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:44:12,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:44:12,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:44:12,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:44:12,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:44:12,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:44:12,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:44:12,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:44:12,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:44:12,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:44:12,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:44:12,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:44:12,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:44:12,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:44:12,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:44:12,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:44:12,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:44:12,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:44:12,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:44:12,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:44:12,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:44:12,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:44:12,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:44:12,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:44:12,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:44:12,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:44:12,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:44:12,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:44:12,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:44:12,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:44:12,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:44:12,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:44:12,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:44:12,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:44:12,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:44:12,545 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 19:44:12,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:44:12,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:44:12,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:44:12,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:44:12,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:44:12,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:44:12,592 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:44:12,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:44:12,592 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:44:12,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:44:12,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:44:12,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:44:12,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:44:12,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:44:12,594 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 19:44:12,595 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 19:44:12,595 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:44:12,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:44:12,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:44:12,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:44:12,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:44:12,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:44:12,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:44:12,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:44:12,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:44:12,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:44:12,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:44:12,597 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 19:44:12,598 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 19:44:12,598 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:44:12,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:44:12,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:44:12,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:44:12,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 19:44:12,599 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_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22112bf5fec517f156789ccf9f4e6d3a5bacd7e511b4f0e72a5035e85c02df36 [2021-10-21 19:44:13,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:44:13,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:44:13,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:44:13,104 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:44:13,105 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:44:13,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2021-10-21 19:44:13,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data/e8025a10a/0bf89d0098bc4aa39522bed447df0f3a/FLAG95c8a47ee [2021-10-21 19:44:13,882 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:44:13,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2021-10-21 19:44:13,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data/e8025a10a/0bf89d0098bc4aa39522bed447df0f3a/FLAG95c8a47ee [2021-10-21 19:44:14,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/data/e8025a10a/0bf89d0098bc4aa39522bed447df0f3a [2021-10-21 19:44:14,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:44:14,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:44:14,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:14,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:44:14,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:44:14,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1eb8b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14, skipping insertion in model container [2021-10-21 19:44:14,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:44:14,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:44:14,455 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_947566f5-a029-4415-8942-b6c55597dd37/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2021-10-21 19:44:14,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:14,498 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:44:14,557 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_947566f5-a029-4415-8942-b6c55597dd37/sv-benchmarks/c/float-newlib/double_req_bl_1051.c[2106,2119] [2021-10-21 19:44:14,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:44:14,585 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:44:14,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14 WrapperNode [2021-10-21 19:44:14,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:44:14,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:14,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:44:14,587 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:44:14,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:44:14,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:44:14,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:44:14,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:44:14,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:44:14,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:44:14,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:44:14,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:44:14,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (1/1) ... [2021-10-21 19:44:14,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:44:14,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:44:14,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:44:14,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:44:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-21 19:44:14,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-21 19:44:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 19:44:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:44:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 19:44:14,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:44:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:44:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 19:44:14,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 19:44:16,561 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:44:16,561 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-21 19:44:16,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:16 BoogieIcfgContainer [2021-10-21 19:44:16,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:44:16,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:44:16,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:44:16,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:44:16,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:44:14" (1/3) ... [2021-10-21 19:44:16,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3da082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:44:16, skipping insertion in model container [2021-10-21 19:44:16,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:44:14" (2/3) ... [2021-10-21 19:44:16,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3da082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:44:16, skipping insertion in model container [2021-10-21 19:44:16,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:16" (3/3) ... [2021-10-21 19:44:16,575 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2021-10-21 19:44:16,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:44:16,582 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:44:16,642 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:44:16,650 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=PETRI_NET, 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 [2021-10-21 19:44:16,650 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:44:16,667 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) [2021-10-21 19:44:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 19:44:16,674 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:44:16,674 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:44:16,675 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:44:16,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:16,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2021-10-21 19:44:16,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:44:16,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800020645] [2021-10-21 19:44:16,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:16,696 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:44:16,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:44:16,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:44:16,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 19:44:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:44:16,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 19:44:16,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:44:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:16,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:44:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:17,006 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:44:17,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800020645] [2021-10-21 19:44:17,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800020645] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:44:17,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:44:17,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 19:44:17,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941108738] [2021-10-21 19:44:17,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:44:17,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:44:17,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:44:17,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:44:17,035 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) [2021-10-21 19:44:17,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:44:17,055 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2021-10-21 19:44:17,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:44:17,057 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 [2021-10-21 19:44:17,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:44:17,067 INFO L225 Difference]: With dead ends: 66 [2021-10-21 19:44:17,068 INFO L226 Difference]: Without dead ends: 31 [2021-10-21 19:44:17,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:44:17,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-21 19:44:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-21 19:44:17,117 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) [2021-10-21 19:44:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2021-10-21 19:44:17,122 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2021-10-21 19:44:17,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:44:17,123 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2021-10-21 19:44:17,123 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) [2021-10-21 19:44:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2021-10-21 19:44:17,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:44:17,125 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:44:17,125 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:44:17,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:44:17,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:44:17,342 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:44:17,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:17,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2021-10-21 19:44:17,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:44:17,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359695282] [2021-10-21 19:44:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:17,351 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:44:17,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:44:17,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:44:17,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 19:44:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:44:17,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:44:17,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:44:17,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:17,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:44:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:18,183 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:44:18,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359695282] [2021-10-21 19:44:18,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359695282] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:44:18,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:44:18,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-21 19:44:18,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043798499] [2021-10-21 19:44:18,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 19:44:18,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:44:18,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 19:44:18,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:44:18,191 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) [2021-10-21 19:44:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:44:19,541 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2021-10-21 19:44:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:44:19,542 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 [2021-10-21 19:44:19,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:44:19,542 INFO L225 Difference]: With dead ends: 42 [2021-10-21 19:44:19,543 INFO L226 Difference]: Without dead ends: 21 [2021-10-21 19:44:19,544 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 598.7ms TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:44:19,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-21 19:44:19,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-21 19:44:19,547 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) [2021-10-21 19:44:19,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-21 19:44:19,548 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2021-10-21 19:44:19,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:44:19,548 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-21 19:44:19,548 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) [2021-10-21 19:44:19,549 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-10-21 19:44:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-21 19:44:19,549 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:44:19,550 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:44:19,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:44:19,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:44:19,764 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:44:19,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:44:19,764 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2021-10-21 19:44:19,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 19:44:19,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689706861] [2021-10-21 19:44:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:44:19,766 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 19:44:19,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 19:44:19,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 19:44:19,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 19:44:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:44:19,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:44:19,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:44:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:20,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 19:44:20,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:44:20,624 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 19:44:20,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [689706861] [2021-10-21 19:44:20,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [689706861] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 19:44:20,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:44:20,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-21 19:44:20,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264017301] [2021-10-21 19:44:20,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:44:20,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 19:44:20,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:44:20,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:44:20,628 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) [2021-10-21 19:44:20,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:44:20,876 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-21 19:44:20,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:44:20,879 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 [2021-10-21 19:44:20,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:44:20,879 INFO L225 Difference]: With dead ends: 21 [2021-10-21 19:44:20,880 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:44:20,880 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 428.5ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:44:20,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:44:20,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:44:20,881 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) [2021-10-21 19:44:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:44:20,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-21 19:44:20,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:44:20,882 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:44:20,882 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) [2021-10-21 19:44:20,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:44:20,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:44:20,887 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:44:20,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:44:21,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 19:44:21,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:44:21,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:44:21,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:44:21,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:44:21,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:44:21,263 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 67) no Hoare annotation was computed. [2021-10-21 19:44:21,264 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 97) no Hoare annotation was computed. [2021-10-21 19:44:21,264 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:44:21,264 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:44:21,264 INFO L857 garLoopResultBuilder]: For program point L28(lines 28 71) no Hoare annotation was computed. [2021-10-21 19:44:21,265 INFO L853 garLoopResultBuilder]: At program point L78(lines 18 79) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_floor_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_floor_double_#res|))) [2021-10-21 19:44:21,265 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-21 19:44:21,265 INFO L857 garLoopResultBuilder]: For program point L29(lines 29 48) no Hoare annotation was computed. [2021-10-21 19:44:21,265 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 21 26) no Hoare annotation was computed. [2021-10-21 19:44:21,265 INFO L853 garLoopResultBuilder]: At program point L21-2(lines 21 26) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_floor_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) [2021-10-21 19:44:21,266 INFO L857 garLoopResultBuilder]: For program point L21-3(lines 21 26) no Hoare annotation was computed. [2021-10-21 19:44:21,266 INFO L857 garLoopResultBuilder]: For program point L30(lines 30 37) no Hoare annotation was computed. [2021-10-21 19:44:21,266 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 77) no Hoare annotation was computed. [2021-10-21 19:44:21,266 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 18 79) no Hoare annotation was computed. [2021-10-21 19:44:21,266 INFO L857 garLoopResultBuilder]: For program point L72-2(lines 72 77) no Hoare annotation was computed. [2021-10-21 19:44:21,267 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-10-21 19:44:21,267 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 36) no Hoare annotation was computed. [2021-10-21 19:44:21,267 INFO L857 garLoopResultBuilder]: For program point L64-2(lines 64 65) no Hoare annotation was computed. [2021-10-21 19:44:21,267 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-10-21 19:44:21,267 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-10-21 19:44:21,268 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:44:21,268 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2021-10-21 19:44:21,268 INFO L853 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_floor_double_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_floor_double_#res|))) [2021-10-21 19:44:21,268 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 71) no Hoare annotation was computed. [2021-10-21 19:44:21,269 INFO L860 garLoopResultBuilder]: At program point L99(lines 84 100) the Hoare annotation is: true [2021-10-21 19:44:21,269 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 36) no Hoare annotation was computed. [2021-10-21 19:44:21,269 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:44:21,269 INFO L857 garLoopResultBuilder]: For program point L58(lines 58 70) no Hoare annotation was computed. [2021-10-21 19:44:21,269 INFO L857 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-10-21 19:44:21,270 INFO L857 garLoopResultBuilder]: For program point L42(lines 42 47) no Hoare annotation was computed. [2021-10-21 19:44:21,270 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 68) no Hoare annotation was computed. [2021-10-21 19:44:21,270 INFO L857 garLoopResultBuilder]: For program point L59-1(lines 59 68) no Hoare annotation was computed. [2021-10-21 19:44:21,270 INFO L857 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-10-21 19:44:21,270 INFO L857 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-10-21 19:44:21,275 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:44:21,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,282 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,289 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,290 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,291 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,291 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,292 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,293 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:44:21 BoogieIcfgContainer [2021-10-21 19:44:21,294 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:44:21,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:44:21,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:44:21,295 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:44:21,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:44:16" (3/4) ... [2021-10-21 19:44:21,299 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:44:21,312 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-21 19:44:21,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-21 19:44:21,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:44:21,313 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:44:21,341 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2021-10-21 19:44:21,342 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) [2021-10-21 19:44:21,343 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) [2021-10-21 19:44:21,375 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:44:21,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:44:21,377 INFO L168 Benchmark]: Toolchain (without parser) took 7157.68 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 38.5 MB in the beginning and 53.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,378 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:21,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.38 ms. Allocated memory is still 58.7 MB. Free memory was 38.4 MB in the beginning and 40.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.10 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 38.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,380 INFO L168 Benchmark]: Boogie Preprocessor took 43.42 ms. Allocated memory is still 58.7 MB. Free memory was 38.6 MB in the beginning and 37.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:44:21,380 INFO L168 Benchmark]: RCFGBuilder took 1881.35 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 37.0 MB in the beginning and 53.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,381 INFO L168 Benchmark]: TraceAbstraction took 4727.77 ms. Allocated memory is still 73.4 MB. Free memory was 53.0 MB in the beginning and 29.8 MB in the end (delta: 23.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,381 INFO L168 Benchmark]: Witness Printer took 81.10 ms. Allocated memory is still 73.4 MB. Free memory was 29.8 MB in the beginning and 53.4 MB in the end (delta: -23.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:44:21,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 40.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.38 ms. Allocated memory is still 58.7 MB. Free memory was 38.4 MB in the beginning and 40.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.10 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 38.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.42 ms. Allocated memory is still 58.7 MB. Free memory was 38.6 MB in the beginning and 37.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1881.35 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 37.0 MB in the beginning and 53.3 MB in the end (delta: -16.3 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4727.77 ms. Allocated memory is still 73.4 MB. Free memory was 53.0 MB in the beginning and 29.8 MB in the end (delta: 23.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * Witness Printer took 81.10 ms. Allocated memory is still 73.4 MB. Free memory was 29.8 MB in the beginning and 53.4 MB in the end (delta: -23.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 95]: 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: 4634.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 14.0ms, AutomataDifference: 1665.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 164.9ms, InitialAbstractionConstructionTime: 12.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 32 SDslu, 90 SDs, 0 SdLazy, 69 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 929.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1027.3ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 36.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 41 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 45.3ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 112.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 42.4ms SsaConstructionTime, 272.5ms SatisfiabilityAnalysisTime, 1497.1ms 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: 18]: Loop Invariant [2021-10-21 19:44:21,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 21]: Loop Invariant [2021-10-21 19:44:21,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 82]: Loop Invariant [2021-10-21 19:44:21,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-21 19:44:21,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-21 19:44:21,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_947566f5-a029-4415-8942-b6c55597dd37/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...