./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_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_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/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_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/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_a7fd9288-5b41-4373-b471-929a99544cdf/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 117e227a1f8c7afcef46e8b69f6c9cb4b1111b56a5f7f9c1580e1601f48f85f4 ....................................................................................................................................................................................................................................................................................... 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_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/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_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/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_a7fd9288-5b41-4373-b471-929a99544cdf/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 117e227a1f8c7afcef46e8b69f6c9cb4b1111b56a5f7f9c1580e1601f48f85f4 ..................................................................................................................................................................................................................................................................................................... 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 23:35:20,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:35:20,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:35:20,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:35:20,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:35:20,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:35:20,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:35:20,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:35:20,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:35:21,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:35:21,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:35:21,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:35:21,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:35:21,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:35:21,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:35:21,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:35:21,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:35:21,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:35:21,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:35:21,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:35:21,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:35:21,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:35:21,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:35:21,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:35:21,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:35:21,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:35:21,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:35:21,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:35:21,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:35:21,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:35:21,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:35:21,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:35:21,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:35:21,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:35:21,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:35:21,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:35:21,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:35:21,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:35:21,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:35:21,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:35:21,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:35:21,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:35:21,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:35:21,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:35:21,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:35:21,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:35:21,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:35:21,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:35:21,134 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:35:21,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:35:21,135 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:35:21,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:35:21,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:35:21,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:35:21,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:35:21,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:35:21,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:35:21,138 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:35:21,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:35:21,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:35:21,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:35:21,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:35:21,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:35:21,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:35:21,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:35:21,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:35:21,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:35:21,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:35:21,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:35:21,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:35:21,142 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:35:21,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:35:21,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:35:21,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:35:21,144 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_a7fd9288-5b41-4373-b471-929a99544cdf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 117e227a1f8c7afcef46e8b69f6c9cb4b1111b56a5f7f9c1580e1601f48f85f4 [2021-10-28 23:35:21,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:35:21,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:35:21,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:35:21,528 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:35:21,529 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:35:21,530 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2021-10-28 23:35:21,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data/18c79c4b8/3e3eda31eacd40bdab3de22e8f310b0a/FLAG1d35d6220 [2021-10-28 23:35:22,248 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:35:22,254 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2021-10-28 23:35:22,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data/18c79c4b8/3e3eda31eacd40bdab3de22e8f310b0a/FLAG1d35d6220 [2021-10-28 23:35:22,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data/18c79c4b8/3e3eda31eacd40bdab3de22e8f310b0a [2021-10-28 23:35:22,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:35:22,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:35:22,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:35:22,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:35:22,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:35:22,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:22,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5761884e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22, skipping insertion in model container [2021-10-28 23:35:22,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:22,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:35:22,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:35:22,869 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_a7fd9288-5b41-4373-b471-929a99544cdf/sv-benchmarks/c/floats-cdfpl/newton_2_8.i[1245,1258] [2021-10-28 23:35:22,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:35:22,882 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:35:22,904 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_a7fd9288-5b41-4373-b471-929a99544cdf/sv-benchmarks/c/floats-cdfpl/newton_2_8.i[1245,1258] [2021-10-28 23:35:22,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:35:22,923 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:35:22,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22 WrapperNode [2021-10-28 23:35:22,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:35:22,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:35:22,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:35:22,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:35:22,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:22,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:22,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:35:22,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:35:22,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:35:22,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:35:22,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:22,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:23,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:23,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:23,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:23,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:23,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:23,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:35:23,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:35:23,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:35:23,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:35:23,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (1/1) ... [2021-10-28 23:35:23,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:35:23,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:35:23,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:35:23,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:35:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:35:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:35:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:35:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:35:23,380 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:35:23,380 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-28 23:35:23,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:23 BoogieIcfgContainer [2021-10-28 23:35:23,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:35:23,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:35:23,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:35:23,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:35:23,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:35:22" (1/3) ... [2021-10-28 23:35:23,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4c1a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:35:23, skipping insertion in model container [2021-10-28 23:35:23,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:22" (2/3) ... [2021-10-28 23:35:23,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4c1a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:35:23, skipping insertion in model container [2021-10-28 23:35:23,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:23" (3/3) ... [2021-10-28 23:35:23,394 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2021-10-28 23:35:23,400 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:35:23,400 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:35:23,472 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:35:23,483 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 23:35:23,483 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:35:23,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:35:23,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:35:23,511 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:23,511 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:35:23,512 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:35:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1267787092, now seen corresponding path program 1 times [2021-10-28 23:35:23,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:35:23,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040283967] [2021-10-28 23:35:23,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:23,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:35:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:35:23,718 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 23:35:23,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:35:23,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040283967] [2021-10-28 23:35:23,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040283967] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:35:23,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:35:23,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:35:23,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639474378] [2021-10-28 23:35:23,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:35:23,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:35:23,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:35:23,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:35:23,754 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 23:35:23,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:35:23,773 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-28 23:35:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:35:23,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-28 23:35:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:35:23,785 INFO L225 Difference]: With dead ends: 27 [2021-10-28 23:35:23,785 INFO L226 Difference]: Without dead ends: 11 [2021-10-28 23:35:23,789 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 23:35:23,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-28 23:35:23,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 23:35:23,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 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 23:35:23,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-10-28 23:35:23,828 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2021-10-28 23:35:23,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:35:23,829 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-10-28 23:35:23,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 23:35:23,830 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-10-28 23:35:23,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:35:23,832 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:23,832 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:35:23,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:35:23,834 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:35:23,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:23,838 INFO L85 PathProgramCache]: Analyzing trace with hash -2077133718, now seen corresponding path program 1 times [2021-10-28 23:35:23,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:35:23,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098649537] [2021-10-28 23:35:23,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:23,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:35:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:35:23,889 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:35:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:35:23,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:35:23,984 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:35:23,986 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:35:23,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:35:23,994 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:35:23,998 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:35:24,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:35:24 BoogieIcfgContainer [2021-10-28 23:35:24,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:35:24,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:35:24,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:35:24,054 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:35:24,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:23" (3/4) ... [2021-10-28 23:35:24,057 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:35:24,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:35:24,060 INFO L168 Benchmark]: Toolchain (without parser) took 1446.12 ms. Allocated memory was 113.2 MB in the beginning and 146.8 MB in the end (delta: 33.6 MB). Free memory was 79.5 MB in the beginning and 121.9 MB in the end (delta: -42.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:35:24,061 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 54.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:35:24,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.97 ms. Allocated memory is still 113.2 MB. Free memory was 79.3 MB in the beginning and 86.9 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:35:24,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.14 ms. Allocated memory is still 113.2 MB. Free memory was 86.9 MB in the beginning and 85.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:35:24,063 INFO L168 Benchmark]: Boogie Preprocessor took 42.40 ms. Allocated memory is still 113.2 MB. Free memory was 85.3 MB in the beginning and 84.4 MB in the end (delta: 901.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:35:24,064 INFO L168 Benchmark]: RCFGBuilder took 355.05 ms. Allocated memory is still 113.2 MB. Free memory was 84.4 MB in the beginning and 75.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:35:24,065 INFO L168 Benchmark]: TraceAbstraction took 668.37 ms. Allocated memory was 113.2 MB in the beginning and 146.8 MB in the end (delta: 33.6 MB). Free memory was 74.8 MB in the beginning and 121.9 MB in the end (delta: -47.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:35:24,065 INFO L168 Benchmark]: Witness Printer took 4.16 ms. Allocated memory is still 146.8 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:35:24,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 113.2 MB. Free memory was 64.5 MB in the beginning and 64.5 MB in the end (delta: 54.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 311.97 ms. Allocated memory is still 113.2 MB. Free memory was 79.3 MB in the beginning and 86.9 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.14 ms. Allocated memory is still 113.2 MB. Free memory was 86.9 MB in the beginning and 85.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.40 ms. Allocated memory is still 113.2 MB. Free memory was 85.3 MB in the beginning and 84.4 MB in the end (delta: 901.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 355.05 ms. Allocated memory is still 113.2 MB. Free memory was 84.4 MB in the beginning and 75.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 668.37 ms. Allocated memory was 113.2 MB in the beginning and 146.8 MB in the end (delta: 33.6 MB). Free memory was 74.8 MB in the beginning and 121.9 MB in the end (delta: -47.1 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.16 ms. Allocated memory is still 146.8 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 35. 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); [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; [L35] x = x - f(x)/fp(x) [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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: 14 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=15occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 23:35:24,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/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 23:35:26,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:35:26,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:35:26,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:35:26,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:35:26,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:35:26,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:35:27,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:35:27,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:35:27,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:35:27,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:35:27,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:35:27,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:35:27,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:35:27,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:35:27,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:35:27,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:35:27,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:35:27,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:35:27,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:35:27,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:35:27,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:35:27,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:35:27,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:35:27,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:35:27,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:35:27,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:35:27,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:35:27,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:35:27,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:35:27,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:35:27,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:35:27,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:35:27,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:35:27,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:35:27,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:35:27,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:35:27,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:35:27,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:35:27,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:35:27,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:35:27,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:35:27,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:35:27,140 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:35:27,141 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:35:27,141 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:35:27,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:35:27,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:35:27,144 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:35:27,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:35:27,145 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:35:27,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:35:27,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:35:27,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:35:27,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:35:27,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:35:27,148 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:35:27,148 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:35:27,148 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:35:27,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:35:27,149 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:35:27,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:35:27,150 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:35:27,150 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:35:27,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:35:27,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:35:27,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:35:27,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:35:27,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:35:27,152 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:35:27,152 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:35:27,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:35:27,153 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:35:27,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:35:27,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:35:27,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:35:27,154 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_a7fd9288-5b41-4373-b471-929a99544cdf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 117e227a1f8c7afcef46e8b69f6c9cb4b1111b56a5f7f9c1580e1601f48f85f4 [2021-10-28 23:35:27,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:35:27,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:35:27,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:35:27,687 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:35:27,688 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:35:27,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2021-10-28 23:35:27,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data/aaceddc09/7a37f15405c04e02a2d1b19850203769/FLAGd0fd20d96 [2021-10-28 23:35:28,368 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:35:28,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/sv-benchmarks/c/floats-cdfpl/newton_2_8.i [2021-10-28 23:35:28,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data/aaceddc09/7a37f15405c04e02a2d1b19850203769/FLAGd0fd20d96 [2021-10-28 23:35:28,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/data/aaceddc09/7a37f15405c04e02a2d1b19850203769 [2021-10-28 23:35:28,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:35:28,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:35:28,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:35:28,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:35:28,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:35:28,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:35:28" (1/1) ... [2021-10-28 23:35:28,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16420a93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:28, skipping insertion in model container [2021-10-28 23:35:28,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:35:28" (1/1) ... [2021-10-28 23:35:28,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:35:28,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:35:29,079 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_a7fd9288-5b41-4373-b471-929a99544cdf/sv-benchmarks/c/floats-cdfpl/newton_2_8.i[1245,1258] [2021-10-28 23:35:29,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:35:29,101 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:35:29,169 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_a7fd9288-5b41-4373-b471-929a99544cdf/sv-benchmarks/c/floats-cdfpl/newton_2_8.i[1245,1258] [2021-10-28 23:35:29,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:35:29,188 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:35:29,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29 WrapperNode [2021-10-28 23:35:29,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:35:29,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:35:29,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:35:29,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:35:29,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:35:29,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:35:29,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:35:29,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:35:29,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:35:29,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:35:29,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:35:29,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:35:29,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (1/1) ... [2021-10-28 23:35:29,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:35:29,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:35:29,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:35:29,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:35:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:35:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:35:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:35:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:35:41,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:35:41,034 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-28 23:35:41,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:41 BoogieIcfgContainer [2021-10-28 23:35:41,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:35:41,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:35:41,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:35:41,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:35:41,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:35:28" (1/3) ... [2021-10-28 23:35:41,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c280be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:35:41, skipping insertion in model container [2021-10-28 23:35:41,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:35:29" (2/3) ... [2021-10-28 23:35:41,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c280be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:35:41, skipping insertion in model container [2021-10-28 23:35:41,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:41" (3/3) ... [2021-10-28 23:35:41,060 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_8.i [2021-10-28 23:35:41,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:35:41,067 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:35:41,129 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:35:41,136 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 23:35:41,137 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:35:41,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:35:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:35:41,159 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:41,159 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:35:41,160 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:35:41,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:41,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1267787092, now seen corresponding path program 1 times [2021-10-28 23:35:41,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:35:41,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463173726] [2021-10-28 23:35:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:41,183 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:35:41,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:35:41,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:35:41,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:35:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:35:43,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:35:43,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:35:43,959 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 23:35:43,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:35:44,062 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 23:35:44,063 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:35:44,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463173726] [2021-10-28 23:35:44,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463173726] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:35:44,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:35:44,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:35:44,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269916197] [2021-10-28 23:35:44,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:35:44,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:35:44,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:35:44,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:35:44,091 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 23:35:44,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:35:44,107 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-28 23:35:44,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:35:44,109 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-28 23:35:44,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:35:44,117 INFO L225 Difference]: With dead ends: 27 [2021-10-28 23:35:44,118 INFO L226 Difference]: Without dead ends: 11 [2021-10-28 23:35:44,120 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 23:35:44,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-28 23:35:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 23:35:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 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 23:35:44,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-10-28 23:35:44,161 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2021-10-28 23:35:44,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:35:44,161 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-10-28 23:35:44,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 23:35:44,162 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-10-28 23:35:44,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:35:44,163 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:35:44,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:35:44,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-28 23:35:44,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:35:44,376 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:35:44,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:35:44,377 INFO L85 PathProgramCache]: Analyzing trace with hash -2077133718, now seen corresponding path program 1 times [2021-10-28 23:35:44,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:35:44,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513065412] [2021-10-28 23:35:44,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:35:44,379 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:35:44,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:35:44,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:35:44,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:36:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:36:10,658 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:40:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:40:01,993 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 23:40:01,993 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:40:01,995 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:40:02,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:40:02,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:40:02,201 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:40:02,203 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:40:02,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:40:02 BoogieIcfgContainer [2021-10-28 23:40:02,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:40:02,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:40:02,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:40:02,246 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:40:02,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:35:41" (3/4) ... [2021-10-28 23:40:02,248 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 23:40:02,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:40:02,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:40:02,295 INFO L168 Benchmark]: Toolchain (without parser) took 273519.16 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.1 MB in the beginning and 36.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:02,295 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory was 33.7 MB in the beginning and 33.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:02,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.44 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 47.6 MB in the end (delta: -18.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:02,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.50 ms. Allocated memory is still 65.0 MB. Free memory was 47.5 MB in the beginning and 45.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:40:02,298 INFO L168 Benchmark]: Boogie Preprocessor took 34.01 ms. Allocated memory is still 65.0 MB. Free memory was 45.8 MB in the beginning and 44.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:02,299 INFO L168 Benchmark]: RCFGBuilder took 11739.02 ms. Allocated memory is still 65.0 MB. Free memory was 44.5 MB in the beginning and 34.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:02,300 INFO L168 Benchmark]: TraceAbstraction took 261179.19 ms. Allocated memory is still 65.0 MB. Free memory was 47.4 MB in the beginning and 38.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:02,301 INFO L168 Benchmark]: Witness Printer took 60.30 ms. Allocated memory is still 65.0 MB. Free memory was 38.2 MB in the beginning and 36.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:40:02,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory was 33.7 MB in the beginning and 33.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.44 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 47.6 MB in the end (delta: -18.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.50 ms. Allocated memory is still 65.0 MB. Free memory was 47.5 MB in the beginning and 45.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.01 ms. Allocated memory is still 65.0 MB. Free memory was 45.8 MB in the beginning and 44.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11739.02 ms. Allocated memory is still 65.0 MB. Free memory was 44.5 MB in the beginning and 34.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 261179.19 ms. Allocated memory is still 65.0 MB. Free memory was 47.4 MB in the beginning and 38.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Witness Printer took 60.30 ms. Allocated memory is still 65.0 MB. Free memory was 38.2 MB in the beginning and 36.4 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, 0.0s 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); [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; [L35] x = x - f(x)/fp(x) [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 261.0s, 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: 14 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 28.6s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 40 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 23:40:02,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7fd9288-5b41-4373-b471-929a99544cdf/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...