./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt --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 d9c72214a613f4a26e1c80cbce806993eed5c352 ................................................................................................................................................................................................................................................................................. 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_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt --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 d9c72214a613f4a26e1c80cbce806993eed5c352 ............................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:35:54,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:35:54,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:35:54,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:35:54,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:35:54,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:35:54,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:35:54,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:35:54,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:35:54,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:35:54,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:35:54,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:35:54,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:35:54,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:35:54,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:35:54,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:35:54,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:35:54,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:35:54,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:35:54,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:35:54,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:35:54,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:35:54,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:35:54,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:35:54,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:35:54,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:35:54,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:35:54,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:35:54,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:35:54,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:35:54,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:35:54,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:35:54,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:35:54,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:35:54,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:35:54,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:35:54,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:35:54,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:35:54,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:35:54,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:35:54,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:35:54,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:35:54,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:35:54,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:35:54,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:35:54,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:35:54,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:35:54,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:35:54,446 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:35:54,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:35:54,447 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:35:54,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:35:54,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:35:54,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:35:54,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:35:54,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:35:54,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:35:54,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:35:54,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:35:54,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:35:54,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:35:54,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:35:54,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:35:54,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:35:54,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:35:54,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:35:54,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:35:54,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:35:54,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:35:54,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:35:54,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:35:54,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:35:54,454 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_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9c72214a613f4a26e1c80cbce806993eed5c352 [2021-10-13 00:35:54,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:35:54,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:35:54,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:35:54,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:35:54,755 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:35:54,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2021-10-13 00:35:54,821 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data/56932910d/7b97a347e79d4a80ba1849cc8e6d3cae/FLAG764e82c25 [2021-10-13 00:35:55,225 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:35:55,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2021-10-13 00:35:55,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data/56932910d/7b97a347e79d4a80ba1849cc8e6d3cae/FLAG764e82c25 [2021-10-13 00:35:55,644 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data/56932910d/7b97a347e79d4a80ba1849cc8e6d3cae [2021-10-13 00:35:55,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:35:55,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:35:55,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:35:55,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:35:55,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:35:55,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18578cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55, skipping insertion in model container [2021-10-13 00:35:55,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:35:55,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:35:55,866 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_c15575b7-83a3-4eb7-816f-12a78c270f68/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1224,1237] [2021-10-13 00:35:55,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:35:55,877 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:35:55,895 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_c15575b7-83a3-4eb7-816f-12a78c270f68/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1224,1237] [2021-10-13 00:35:55,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:35:55,908 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:35:55,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55 WrapperNode [2021-10-13 00:35:55,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:35:55,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:35:55,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:35:55,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:35:55,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,945 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:35:55,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:35:55,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:35:55,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:35:55,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:35:55,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:35:55,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:35:55,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:35:55,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (1/1) ... [2021-10-13 00:35:55,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:35:55,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:56,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:35:56,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:35:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:35:56,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:35:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:35:56,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:35:56,279 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:35:56,290 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 00:35:56,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:56 BoogieIcfgContainer [2021-10-13 00:35:56,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:35:56,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:35:56,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:35:56,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:35:56,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:35:55" (1/3) ... [2021-10-13 00:35:56,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9532e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:35:56, skipping insertion in model container [2021-10-13 00:35:56,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:35:55" (2/3) ... [2021-10-13 00:35:56,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9532e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:35:56, skipping insertion in model container [2021-10-13 00:35:56,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:56" (3/3) ... [2021-10-13 00:35:56,316 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2021-10-13 00:35:56,321 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:35:56,321 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:35:56,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:35:56,392 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:35:56,392 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:35:56,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:35:56,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:56,411 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:56,411 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:35:56,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:56,417 INFO L82 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-10-13 00:35:56,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:56,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154705903] [2021-10-13 00:35:56,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:56,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:56,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:56,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:56,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154705903] [2021-10-13 00:35:56,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154705903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:35:56,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:35:56,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:35:56,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800094727] [2021-10-13 00:35:56,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:35:56,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:56,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:35:56,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:35:56,581 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:56,592 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-10-13 00:35:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:35:56,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 00:35:56,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:56,601 INFO L225 Difference]: With dead ends: 23 [2021-10-13 00:35:56,601 INFO L226 Difference]: Without dead ends: 9 [2021-10-13 00:35:56,603 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 [2021-10-13 00:35:56,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-13 00:35:56,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-13 00:35:56,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-10-13 00:35:56,625 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-10-13 00:35:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:56,626 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-10-13 00:35:56,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-13 00:35:56,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:35:56,627 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:56,627 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:35:56,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:35:56,627 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:35:56,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:56,629 INFO L82 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-10-13 00:35:56,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:56,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689002786] [2021-10-13 00:35:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:56,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:56,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:56,650 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:35:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:35:56,691 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:35:56,692 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:35:56,693 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:35:56,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:35:56,701 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:35:56,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:35:56 BoogieIcfgContainer [2021-10-13 00:35:56,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:35:56,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:35:56,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:35:56,719 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:35:56,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:35:56" (3/4) ... [2021-10-13 00:35:56,722 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:35:56,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:35:56,724 INFO L168 Benchmark]: Toolchain (without parser) took 1075.66 ms. Allocated memory is still 104.9 MB. Free memory was 65.7 MB in the beginning and 45.9 MB in the end (delta: 19.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:56,725 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:35:56,725 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.88 ms. Allocated memory is still 104.9 MB. Free memory was 65.5 MB in the beginning and 79.5 MB in the end (delta: -13.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:56,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 77.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:35:56,727 INFO L168 Benchmark]: Boogie Preprocessor took 19.79 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 76.9 MB in the end (delta: 874.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:35:56,727 INFO L168 Benchmark]: RCFGBuilder took 326.04 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 67.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:56,728 INFO L168 Benchmark]: TraceAbstraction took 424.12 ms. Allocated memory is still 104.9 MB. Free memory was 67.3 MB in the beginning and 45.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:35:56,728 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 104.9 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:35:56,732 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 243.88 ms. Allocated memory is still 104.9 MB. Free memory was 65.5 MB in the beginning and 79.5 MB in the end (delta: -13.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 77.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.79 ms. Allocated memory is still 104.9 MB. Free memory was 77.8 MB in the beginning and 76.9 MB in the end (delta: 874.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 326.04 ms. Allocated memory is still 104.9 MB. Free memory was 76.5 MB in the beginning and 67.7 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 424.12 ms. Allocated memory is still 104.9 MB. Free memory was 67.3 MB in the beginning and 45.9 MB in the end (delta: 21.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.90 ms. Allocated memory is still 104.9 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms 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: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticFLOAToperation at line 33. Possible FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 315.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 8.8ms, AutomataDifference: 36.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 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=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 10.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.7ms SsaConstructionTime, 39.6ms SatisfiabilityAnalysisTime, 43.5ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 00:35:56,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/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-4e77c04 [2021-10-13 00:35:59,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:35:59,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:35:59,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:35:59,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:35:59,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:35:59,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:35:59,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:35:59,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:35:59,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:35:59,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:35:59,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:35:59,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:35:59,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:35:59,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:35:59,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:35:59,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:35:59,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:35:59,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:35:59,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:35:59,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:35:59,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:35:59,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:35:59,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:35:59,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:35:59,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:35:59,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:35:59,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:35:59,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:35:59,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:35:59,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:35:59,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:35:59,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:35:59,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:35:59,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:35:59,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:35:59,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:35:59,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:35:59,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:35:59,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:35:59,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:35:59,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:35:59,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:35:59,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:35:59,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:35:59,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:35:59,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:35:59,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:35:59,278 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:35:59,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:35:59,279 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:35:59,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:35:59,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:35:59,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:35:59,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:35:59,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:35:59,280 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:35:59,280 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:35:59,280 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:35:59,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:35:59,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:35:59,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:35:59,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:35:59,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:35:59,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:35:59,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:35:59,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:35:59,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:35:59,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:35:59,283 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:35:59,283 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:35:59,283 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:35:59,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:35:59,283 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:35:59,284 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_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9c72214a613f4a26e1c80cbce806993eed5c352 [2021-10-13 00:35:59,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:35:59,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:35:59,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:35:59,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:35:59,635 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:35:59,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2021-10-13 00:35:59,713 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data/ae259abe4/e6e43c5328254c17a4e1a786bfe332f8/FLAG98b956eaf [2021-10-13 00:36:00,231 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:36:00,232 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2021-10-13 00:36:00,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data/ae259abe4/e6e43c5328254c17a4e1a786bfe332f8/FLAG98b956eaf [2021-10-13 00:36:00,620 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/data/ae259abe4/e6e43c5328254c17a4e1a786bfe332f8 [2021-10-13 00:36:00,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:36:00,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:36:00,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:36:00,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:36:00,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:36:00,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:00,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f513a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00, skipping insertion in model container [2021-10-13 00:36:00,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:00,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:36:00,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:36:00,876 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_c15575b7-83a3-4eb7-816f-12a78c270f68/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1224,1237] [2021-10-13 00:36:00,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:36:00,894 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:36:00,927 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_c15575b7-83a3-4eb7-816f-12a78c270f68/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1224,1237] [2021-10-13 00:36:00,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:36:00,949 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:36:00,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00 WrapperNode [2021-10-13 00:36:00,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:36:00,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:36:00,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:36:00,953 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:36:00,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:00,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:36:01,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:36:01,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:36:01,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:36:01,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:36:01,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:36:01,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:36:01,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:36:01,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (1/1) ... [2021-10-13 00:36:01,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:36:01,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:01,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:36:01,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:36:01,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:36:01,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:36:01,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:36:01,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:36:07,852 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:36:07,852 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 00:36:07,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:07 BoogieIcfgContainer [2021-10-13 00:36:07,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:36:07,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:36:07,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:36:07,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:36:07,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:36:00" (1/3) ... [2021-10-13 00:36:07,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e64a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:36:07, skipping insertion in model container [2021-10-13 00:36:07,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:00" (2/3) ... [2021-10-13 00:36:07,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e64a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:36:07, skipping insertion in model container [2021-10-13 00:36:07,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:07" (3/3) ... [2021-10-13 00:36:07,863 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2021-10-13 00:36:07,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:36:07,869 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:36:07,924 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:36:07,935 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 00:36:07,936 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:36:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:36:07,955 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:07,955 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:07,956 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:36:07,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:07,961 INFO L82 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-10-13 00:36:07,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:36:07,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684276026] [2021-10-13 00:36:07,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:07,974 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:36:07,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:36:07,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:36:07,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:36:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:09,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 00:36:09,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:09,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:36:09,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:09,557 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:36:09,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684276026] [2021-10-13 00:36:09,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [684276026] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:36:09,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:36:09,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:36:09,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896932086] [2021-10-13 00:36:09,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:36:09,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:36:09,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:36:09,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:36:09,579 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:09,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:09,592 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-10-13 00:36:09,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:36:09,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 00:36:09,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:09,600 INFO L225 Difference]: With dead ends: 23 [2021-10-13 00:36:09,600 INFO L226 Difference]: Without dead ends: 9 [2021-10-13 00:36:09,602 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:36:09,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-13 00:36:09,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-13 00:36:09,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:09,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-10-13 00:36:09,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-10-13 00:36:09,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:09,627 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-10-13 00:36:09,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:09,627 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-13 00:36:09,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:36:09,628 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:09,628 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:36:09,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-13 00:36:09,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:36:09,841 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:36:09,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:09,842 INFO L82 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-10-13 00:36:09,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:36:09,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [67333681] [2021-10-13 00:36:09,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:09,843 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:36:09,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:36:09,844 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:36:09,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:36:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:26,644 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:36:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:36:28,528 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-13 00:36:28,528 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:36:28,530 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:36:28,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:28,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:36:28,737 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:36:28,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:36:28 BoogieIcfgContainer [2021-10-13 00:36:28,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:36:28,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:36:28,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:36:28,757 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:36:28,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:07" (3/4) ... [2021-10-13 00:36:28,759 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 00:36:28,793 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:36:28,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:36:28,795 INFO L168 Benchmark]: Toolchain (without parser) took 28170.10 ms. Allocated memory is still 73.4 MB. Free memory was 52.2 MB in the beginning and 39.3 MB in the end (delta: 12.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:28,795 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:36:28,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.72 ms. Allocated memory is still 73.4 MB. Free memory was 52.0 MB in the beginning and 41.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:28,797 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.65 ms. Allocated memory is still 73.4 MB. Free memory was 41.3 MB in the beginning and 56.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:28,797 INFO L168 Benchmark]: Boogie Preprocessor took 38.24 ms. Allocated memory is still 73.4 MB. Free memory was 56.9 MB in the beginning and 55.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:36:28,798 INFO L168 Benchmark]: RCFGBuilder took 6795.41 ms. Allocated memory is still 73.4 MB. Free memory was 55.6 MB in the beginning and 46.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:28,798 INFO L168 Benchmark]: TraceAbstraction took 20899.35 ms. Allocated memory is still 73.4 MB. Free memory was 45.7 MB in the beginning and 41.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:28,799 INFO L168 Benchmark]: Witness Printer took 36.61 ms. Allocated memory is still 73.4 MB. Free memory was 41.1 MB in the beginning and 39.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:36:28,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory was 34.3 MB in the beginning and 34.3 MB in the end (delta: 41.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 325.72 ms. Allocated memory is still 73.4 MB. Free memory was 52.0 MB in the beginning and 41.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.65 ms. Allocated memory is still 73.4 MB. Free memory was 41.3 MB in the beginning and 56.9 MB in the end (delta: -15.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.24 ms. Allocated memory is still 73.4 MB. Free memory was 56.9 MB in the beginning and 55.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 6795.41 ms. Allocated memory is still 73.4 MB. Free memory was 55.6 MB in the beginning and 46.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20899.35 ms. Allocated memory is still 73.4 MB. Free memory was 45.7 MB in the beginning and 41.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. * Witness Printer took 36.61 ms. Allocated memory is still 73.4 MB. Free memory was 41.1 MB in the beginning and 39.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20813.1ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.7ms, AutomataDifference: 36.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 13.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.2ms SsaConstructionTime, 18049.9ms SatisfiabilityAnalysisTime, 218.0ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! [2021-10-13 00:36:28,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15575b7-83a3-4eb7-816f-12a78c270f68/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...