./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD --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 f31be785cf3726a3cfca3e55a0470de7e92cdf0ff37aafb2e28c813a09088f83 .................................................................................................................................................................................................................................................................................... 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_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD --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 f31be785cf3726a3cfca3e55a0470de7e92cdf0ff37aafb2e28c813a09088f83 .................................................................................................................................................................................................................................................................................................. 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-b2eff8b [2021-10-28 23:02:31,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:02:31,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:02:31,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:02:31,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:02:31,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:02:31,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:02:31,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:02:31,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:02:31,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:02:31,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:02:31,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:02:31,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:02:31,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:02:31,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:02:31,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:02:31,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:02:31,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:02:31,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:02:31,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:02:31,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:02:31,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:02:31,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:02:31,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:02:31,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:02:31,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:02:31,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:02:31,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:02:31,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:02:31,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:02:31,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:02:31,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:02:31,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:02:31,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:02:31,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:02:31,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:02:31,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:02:31,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:02:31,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:02:31,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:02:31,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:02:31,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:02:31,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:02:31,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:02:31,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:02:31,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:02:31,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:02:31,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:02:31,993 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:02:31,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:02:31,993 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:02:31,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:02:31,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:02:31,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:02:31,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:02:31,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:02:31,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:02:31,996 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:02:31,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:02:31,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:02:31,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:02:31,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:02:31,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:02:31,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:02:31,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:31,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:02:31,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:02:31,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:02:31,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:02:31,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:02:32,000 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:02:32,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:02:32,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:02:32,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:02:32,002 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_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f31be785cf3726a3cfca3e55a0470de7e92cdf0ff37aafb2e28c813a09088f83 [2021-10-28 23:02:32,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:02:32,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:02:32,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:02:32,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:02:32,437 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:02:32,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2021-10-28 23:02:32,545 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data/b28a30269/19bc3f74276c4aa699d7778182fa2369/FLAGd106c4a21 [2021-10-28 23:02:33,106 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:02:33,109 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2021-10-28 23:02:33,118 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data/b28a30269/19bc3f74276c4aa699d7778182fa2369/FLAGd106c4a21 [2021-10-28 23:02:33,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data/b28a30269/19bc3f74276c4aa699d7778182fa2369 [2021-10-28 23:02:33,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:02:33,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:02:33,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:33,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:02:33,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:02:33,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e6d72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33, skipping insertion in model container [2021-10-28 23:02:33,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:02:33,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:02:33,751 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_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1224,1237] [2021-10-28 23:02:33,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:33,766 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:02:33,789 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_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1224,1237] [2021-10-28 23:02:33,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:33,807 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:02:33,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33 WrapperNode [2021-10-28 23:02:33,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:33,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:02:33,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:02:33,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:02:33,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:02:33,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:02:33,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:02:33,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:02:33,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:02:33,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:02:33,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:02:33,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:02:33,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (1/1) ... [2021-10-28 23:02:33,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:33,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:33,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:02:33,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:02:33,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:02:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:02:33,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:02:33,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:02:34,247 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:02:34,262 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 23:02:34,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:34 BoogieIcfgContainer [2021-10-28 23:02:34,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:02:34,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:02:34,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:02:34,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:02:34,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:02:33" (1/3) ... [2021-10-28 23:02:34,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1e05a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:02:34, skipping insertion in model container [2021-10-28 23:02:34,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:33" (2/3) ... [2021-10-28 23:02:34,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b1e05a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:02:34, skipping insertion in model container [2021-10-28 23:02:34,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:34" (3/3) ... [2021-10-28 23:02:34,282 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_8.i [2021-10-28 23:02:34,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:02:34,306 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:02:34,422 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:02:34,431 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 [2021-10-28 23:02:34,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:02:34,474 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) [2021-10-28 23:02:34,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 23:02:34,480 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:34,481 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:34,484 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:02:34,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:34,498 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-10-28 23:02:34,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:34,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544824686] [2021-10-28 23:02:34,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:34,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:34,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:34,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:02:34,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544824686] [2021-10-28 23:02:34,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544824686] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:34,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:34,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:02:34,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136215044] [2021-10-28 23:02:34,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:02:34,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:02:34,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:02:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:02:34,810 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) [2021-10-28 23:02:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:34,831 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-10-28 23:02:34,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:02:34,833 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 [2021-10-28 23:02:34,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:34,843 INFO L225 Difference]: With dead ends: 23 [2021-10-28 23:02:34,843 INFO L226 Difference]: Without dead ends: 9 [2021-10-28 23:02:34,847 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:02:34,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-28 23:02:34,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-28 23:02:34,881 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) [2021-10-28 23:02:34,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-10-28 23:02:34,884 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-10-28 23:02:34,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:34,886 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-10-28 23:02:34,886 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) [2021-10-28 23:02:34,887 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-28 23:02:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 23:02:34,888 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:34,888 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:34,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:02:34,889 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:02:34,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:34,893 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-10-28 23:02:34,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:02:34,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791555367] [2021-10-28 23:02:34,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:34,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:02:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:02:34,940 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:02:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:02:35,017 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:02:35,018 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:02:35,020 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:02:35,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:02:35,028 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:02:35,031 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:02:35,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:02:35 BoogieIcfgContainer [2021-10-28 23:02:35,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:02:35,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:02:35,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:02:35,065 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:02:35,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:34" (3/4) ... [2021-10-28 23:02:35,070 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:02:35,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:02:35,073 INFO L168 Benchmark]: Toolchain (without parser) took 1630.62 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 54.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:35,073 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 83.2 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:02:35,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.07 ms. Allocated memory is still 111.1 MB. Free memory was 78.2 MB in the beginning and 87.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:35,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.60 ms. Allocated memory is still 111.1 MB. Free memory was 87.7 MB in the beginning and 86.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:35,084 INFO L168 Benchmark]: Boogie Preprocessor took 22.80 ms. Allocated memory is still 111.1 MB. Free memory was 86.3 MB in the beginning and 85.5 MB in the end (delta: 860.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:02:35,086 INFO L168 Benchmark]: RCFGBuilder took 389.82 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 76.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:35,086 INFO L168 Benchmark]: TraceAbstraction took 797.00 ms. Allocated memory is still 111.1 MB. Free memory was 75.9 MB in the beginning and 54.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:02:35,087 INFO L168 Benchmark]: Witness Printer took 6.06 ms. Allocated memory is still 111.1 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:02:35,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 83.2 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.07 ms. Allocated memory is still 111.1 MB. Free memory was 78.2 MB in the beginning and 87.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.60 ms. Allocated memory is still 111.1 MB. Free memory was 87.7 MB in the beginning and 86.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.80 ms. Allocated memory is still 111.1 MB. Free memory was 86.3 MB in the beginning and 85.5 MB in the end (delta: 860.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 389.82 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 76.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 797.00 ms. Allocated memory is still 111.1 MB. Free memory was 75.9 MB in the beginning and 54.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.06 ms. Allocated memory is still 111.1 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 [2021-10-28 23:02:35,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/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-b2eff8b [2021-10-28 23:02:38,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:02:38,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:02:38,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:02:38,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:02:38,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:02:38,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:02:38,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:02:38,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:02:38,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:02:38,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:02:38,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:02:38,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:02:38,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:02:38,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:02:38,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:02:38,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:02:38,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:02:38,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:02:38,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:02:38,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:02:38,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:02:38,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:02:38,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:02:38,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:02:38,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:02:38,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:02:38,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:02:38,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:02:38,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:02:38,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:02:38,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:02:38,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:02:38,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:02:38,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:02:38,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:02:38,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:02:38,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:02:38,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:02:38,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:02:38,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:02:38,266 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:02:38,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:02:38,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:02:38,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:02:38,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:02:38,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:02:38,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:02:38,329 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:02:38,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:02:38,329 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:02:38,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:02:38,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:02:38,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:02:38,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:02:38,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:02:38,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:02:38,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:02:38,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:02:38,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:02:38,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:02:38,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:02:38,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:02:38,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:02:38,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:02:38,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:38,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:02:38,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:02:38,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:02:38,336 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:02:38,336 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:02:38,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:02:38,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:02:38,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:02:38,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:02:38,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:02:38,338 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_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f31be785cf3726a3cfca3e55a0470de7e92cdf0ff37aafb2e28c813a09088f83 [2021-10-28 23:02:38,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:02:38,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:02:38,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:02:38,804 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:02:38,805 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:02:38,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2021-10-28 23:02:38,883 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data/8183baec9/375b73a50f384b3c8200f658112f7db9/FLAGa138eed2c [2021-10-28 23:02:39,471 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:02:39,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2021-10-28 23:02:39,490 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data/8183baec9/375b73a50f384b3c8200f658112f7db9/FLAGa138eed2c [2021-10-28 23:02:39,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/data/8183baec9/375b73a50f384b3c8200f658112f7db9 [2021-10-28 23:02:39,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:02:39,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:02:39,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:39,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:02:39,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:02:39,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:39" (1/1) ... [2021-10-28 23:02:39,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3639e06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:39, skipping insertion in model container [2021-10-28 23:02:39,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:02:39" (1/1) ... [2021-10-28 23:02:39,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:02:39,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:02:40,129 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_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1224,1237] [2021-10-28 23:02:40,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:40,158 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:02:40,222 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_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1224,1237] [2021-10-28 23:02:40,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:02:40,248 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:02:40,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40 WrapperNode [2021-10-28 23:02:40,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:02:40,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:02:40,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:02:40,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:02:40,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:02:40,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:02:40,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:02:40,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:02:40,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:02:40,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:02:40,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:02:40,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:02:40,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (1/1) ... [2021-10-28 23:02:40,374 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:02:40,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:02:40,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:02:40,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:02:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:02:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:02:40,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:02:40,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:02:46,156 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:02:46,156 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 23:02:46,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:46 BoogieIcfgContainer [2021-10-28 23:02:46,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:02:46,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:02:46,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:02:46,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:02:46,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:02:39" (1/3) ... [2021-10-28 23:02:46,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543a7b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:02:46, skipping insertion in model container [2021-10-28 23:02:46,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:02:40" (2/3) ... [2021-10-28 23:02:46,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@543a7b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:02:46, skipping insertion in model container [2021-10-28 23:02:46,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:46" (3/3) ... [2021-10-28 23:02:46,170 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_8.i [2021-10-28 23:02:46,176 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:02:46,176 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:02:46,227 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:02:46,234 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 [2021-10-28 23:02:46,234 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:02:46,248 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) [2021-10-28 23:02:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 23:02:46,254 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:46,269 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:46,269 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:02:46,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-10-28 23:02:46,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:02:46,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478251412] [2021-10-28 23:02:46,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:46,288 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:02:46,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:02:46,294 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:02:46,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:02:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:02:47,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:02:47,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:02:47,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:47,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:02:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:02:47,867 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:02:47,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478251412] [2021-10-28 23:02:47,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478251412] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:02:47,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:02:47,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:02:47,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984229539] [2021-10-28 23:02:47,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:02:47,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:02:47,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:02:47,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:02:47,905 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) [2021-10-28 23:02:47,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:02:47,925 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-10-28 23:02:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:02:47,928 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 [2021-10-28 23:02:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:02:47,939 INFO L225 Difference]: With dead ends: 23 [2021-10-28 23:02:47,939 INFO L226 Difference]: Without dead ends: 9 [2021-10-28 23:02:47,942 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:02:47,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-28 23:02:47,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-28 23:02:47,973 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) [2021-10-28 23:02:47,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-10-28 23:02:47,976 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-10-28 23:02:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:02:47,976 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-10-28 23:02:47,977 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) [2021-10-28 23:02:47,977 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-28 23:02:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-28 23:02:47,978 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:02:47,978 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:02:48,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:02:48,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:02:48,198 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:02:48,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:02:48,199 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-10-28 23:02:48,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:02:48,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246802453] [2021-10-28 23:02:48,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:02:48,200 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:02:48,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:02:48,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:02:48,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:02:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:02:52,914 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:03:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:03:00,852 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:03:00,853 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:03:00,855 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:03:00,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:03:01,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:03:01,062 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:03:01,065 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:03:01,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:03:01 BoogieIcfgContainer [2021-10-28 23:03:01,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:03:01,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:03:01,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:03:01,096 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:03:01,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:02:46" (3/4) ... [2021-10-28 23:03:01,099 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:03:01,152 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:03:01,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:03:01,155 INFO L168 Benchmark]: Toolchain (without parser) took 21336.58 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 38.7 MB in the beginning and 52.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:01,155 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 58.7 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:03:01,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.53 ms. Allocated memory is still 58.7 MB. Free memory was 38.5 MB in the beginning and 41.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:01,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.50 ms. Allocated memory is still 58.7 MB. Free memory was 41.4 MB in the beginning and 39.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:03:01,158 INFO L168 Benchmark]: Boogie Preprocessor took 30.81 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 38.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:01,158 INFO L168 Benchmark]: RCFGBuilder took 5801.95 ms. Allocated memory is still 58.7 MB. Free memory was 38.6 MB in the beginning and 29.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:01,159 INFO L168 Benchmark]: TraceAbstraction took 14933.45 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 28.9 MB in the beginning and 53.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:03:01,160 INFO L168 Benchmark]: Witness Printer took 57.28 ms. Allocated memory is still 90.2 MB. Free memory was 53.9 MB in the beginning and 52.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:03:01,164 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 58.7 MB. Free memory is still 39.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 442.53 ms. Allocated memory is still 58.7 MB. Free memory was 38.5 MB in the beginning and 41.6 MB in the end (delta: -3.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.50 ms. Allocated memory is still 58.7 MB. Free memory was 41.4 MB in the beginning and 39.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.81 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 38.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5801.95 ms. Allocated memory is still 58.7 MB. Free memory was 38.6 MB in the beginning and 29.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14933.45 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 28.9 MB in the beginning and 53.9 MB in the end (delta: -25.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Witness Printer took 57.28 ms. Allocated memory is still 90.2 MB. Free memory was 53.9 MB in the beginning and 52.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 14.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.9s SatisfiabilityAnalysisTime, 0.2s 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! [2021-10-28 23:03:01,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfe2f4d-0970-4f9d-82f0-b738a0f13a6b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...