./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8 --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 c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:28:55,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:28:55,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:28:55,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:28:55,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:28:55,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:28:55,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:28:55,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:28:55,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:28:55,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:28:55,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:28:55,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:28:55,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:28:55,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:28:55,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:28:55,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:28:55,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:28:55,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:28:55,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:28:55,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:28:55,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:28:55,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:28:55,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:28:55,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:28:55,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:28:55,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:28:55,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:28:55,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:28:55,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:28:55,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:28:55,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:28:55,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:28:55,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:28:55,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:28:55,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:28:55,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:28:55,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:28:55,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:28:55,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:28:55,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:28:55,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:28:55,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:28:55,851 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:28:55,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:28:55,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:28:55,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:28:55,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:28:55,853 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:28:55,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:28:55,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:28:55,854 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:28:55,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:28:55,854 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:28:55,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:28:55,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:28:55,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:28:55,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:28:55,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:28:55,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:28:55,856 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:28:55,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:28:55,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:28:55,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:28:55,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:28:55,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:28:55,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:28:55,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:28:55,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:28:55,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:28:55,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:28:55,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:28:55,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:28:55,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:28:55,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:28:55,859 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:28:55,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:28:55,859 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:28:55,859 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 [2022-12-13 21:28:56,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:28:56,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:28:56,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:28:56,047 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:28:56,047 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:28:56,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2022-12-13 21:28:58,564 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:28:58,713 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:28:58,714 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2022-12-13 21:28:58,718 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/data/e1c91da85/c08b65e0be2346768a498e8140489968/FLAG3dab99d63 [2022-12-13 21:28:59,120 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/data/e1c91da85/c08b65e0be2346768a498e8140489968 [2022-12-13 21:28:59,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:28:59,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:28:59,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:28:59,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:28:59,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:28:59,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f9a5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59, skipping insertion in model container [2022-12-13 21:28:59,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:28:59,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:28:59,268 WARN L237 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_54de77fa-99b7-4e2a-81a6-a371b089819b/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2022-12-13 21:28:59,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:28:59,280 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:28:59,293 WARN L237 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_54de77fa-99b7-4e2a-81a6-a371b089819b/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2022-12-13 21:28:59,294 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:28:59,303 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:28:59,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59 WrapperNode [2022-12-13 21:28:59,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:28:59,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:28:59,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:28:59,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:28:59,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,328 INFO L138 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-12-13 21:28:59,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:28:59,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:28:59,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:28:59,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:28:59,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,346 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:28:59,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:28:59,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:28:59,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:28:59,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (1/1) ... [2022-12-13 21:28:59,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:28:59,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:28:59,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:28:59,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:28:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:28:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 21:28:59,413 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 21:28:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-13 21:28:59,413 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-13 21:28:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:28:59,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:28:59,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:28:59,476 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:28:59,479 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:28:59,562 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:28:59,568 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:28:59,568 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:28:59,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:28:59 BoogieIcfgContainer [2022-12-13 21:28:59,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:28:59,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:28:59,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:28:59,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:28:59,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:28:59" (1/3) ... [2022-12-13 21:28:59,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9cd3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:28:59, skipping insertion in model container [2022-12-13 21:28:59,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:28:59" (2/3) ... [2022-12-13 21:28:59,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9cd3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:28:59, skipping insertion in model container [2022-12-13 21:28:59,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:28:59" (3/3) ... [2022-12-13 21:28:59,579 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_2.i [2022-12-13 21:28:59,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:28:59,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:28:59,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:28:59,642 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7d8491a8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:28:59,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:28:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 21:28:59,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 21:28:59,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:28:59,653 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:28:59,653 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:28:59,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:28:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-12-13 21:28:59,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:28:59,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421030235] [2022-12-13 21:28:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:28:59,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:28:59,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:59,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 21:28:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:59,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 21:28:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:59,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 21:28:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 21:28:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:59,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 21:28:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:59,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 21:28:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:28:59,825 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 21:28:59,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:28:59,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421030235] [2022-12-13 21:28:59,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421030235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:28:59,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:28:59,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:28:59,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832322444] [2022-12-13 21:28:59,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:28:59,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:28:59,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:28:59,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:28:59,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:28:59,867 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-13 21:28:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:28:59,886 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-12-13 21:28:59,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:28:59,887 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-12-13 21:28:59,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:28:59,894 INFO L225 Difference]: With dead ends: 49 [2022-12-13 21:28:59,894 INFO L226 Difference]: Without dead ends: 22 [2022-12-13 21:28:59,897 INFO L412 NwaCegarLoop]: 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 [2022-12-13 21:28:59,901 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:28:59,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:28:59,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-13 21:28:59,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-13 21:28:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 21:28:59,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-12-13 21:28:59,934 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-12-13 21:28:59,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:28:59,934 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-12-13 21:28:59,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-13 21:28:59,935 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-13 21:28:59,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 21:28:59,936 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:28:59,936 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:28:59,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:28:59,937 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:28:59,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:28:59,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-12-13 21:28:59,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:28:59,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562098784] [2022-12-13 21:28:59,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:28:59,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:28:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:28:59,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:28:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:28:59,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:28:59,999 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:29:00,001 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:29:00,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:29:00,005 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 21:29:00,008 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:29:00,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:29:00 BoogieIcfgContainer [2022-12-13 21:29:00,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:29:00,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:29:00,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:29:00,030 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:29:00,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:28:59" (3/4) ... [2022-12-13 21:29:00,033 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:29:00,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:29:00,033 INFO L158 Benchmark]: Toolchain (without parser) took 910.46ms. Allocated memory is still 134.2MB. Free memory was 101.3MB in the beginning and 48.8MB in the end (delta: 52.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-12-13 21:29:00,034 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:29:00,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.36ms. Allocated memory is still 134.2MB. Free memory was 100.8MB in the beginning and 90.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:29:00,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.05ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 88.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:29:00,038 INFO L158 Benchmark]: Boogie Preprocessor took 19.45ms. Allocated memory is still 134.2MB. Free memory was 88.9MB in the beginning and 87.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:29:00,038 INFO L158 Benchmark]: RCFGBuilder took 221.09ms. Allocated memory is still 134.2MB. Free memory was 87.8MB in the beginning and 78.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 21:29:00,039 INFO L158 Benchmark]: TraceAbstraction took 456.72ms. Allocated memory is still 134.2MB. Free memory was 77.7MB in the beginning and 49.1MB in the end (delta: 28.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 21:29:00,039 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 134.2MB. Free memory was 49.1MB in the beginning and 48.8MB in the end (delta: 223.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:29:00,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.36ms. Allocated memory is still 134.2MB. Free memory was 100.8MB in the beginning and 90.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.05ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 88.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.45ms. Allocated memory is still 134.2MB. Free memory was 88.9MB in the beginning and 87.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 221.09ms. Allocated memory is still 134.2MB. Free memory was 87.8MB in the beginning and 78.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 456.72ms. Allocated memory is still 134.2MB. Free memory was 77.7MB in the beginning and 49.1MB in the end (delta: 28.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 134.2MB. Free memory was 49.1MB in the beginning and 48.8MB in the end (delta: 223.4kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 51]: 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 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.4f && IN < 0.4f) [L42] CALL, EXPR f(IN) VAL [\old(x)=54] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=54, x=54] [L42] RET, EXPR f(IN) VAL [f(IN)=55, IN=54] [L42] CALL, EXPR fp(IN) VAL [\old(x)=54] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=54, x=54] [L42] RET, EXPR fp(IN) VAL [f(IN)=55, fp(IN)=59, IN=54] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=56] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=56, x=56] [L44] RET, EXPR f(x) VAL [f(x)=57, IN=54, x=56] [L44] CALL, EXPR fp(x) VAL [\old(x)=56] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=56, x=56] [L44] RET, EXPR fp(x) VAL [f(x)=57, fp(x)=60, IN=54, x=56] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=58] [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=58, x=58] [L46] RET, EXPR f(x) VAL [f(x)=61, IN=54, x=58] [L46] CALL, EXPR fp(x) VAL [\old(x)=58] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=58, x=58] [L46] RET, EXPR fp(x) VAL [f(x)=61, fp(x)=53, IN=54, x=58] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=54] [L51] reach_error() VAL [IN=54] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, 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=26occurred 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, 0.1s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 18/18 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 [2022-12-13 21:29:00,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8 --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 c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:29:01,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:29:01,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:29:01,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:29:01,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:29:01,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:29:01,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:29:01,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:29:01,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:29:01,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:29:01,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:29:01,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:29:01,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:29:01,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:29:01,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:29:01,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:29:01,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:29:01,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:29:01,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:29:01,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:29:01,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:29:01,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:29:01,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:29:01,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:29:01,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:29:01,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:29:01,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:29:01,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:29:01,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:29:01,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:29:01,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:29:01,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:29:01,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:29:01,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:29:01,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:29:01,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:29:01,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:29:01,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:29:01,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:29:01,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:29:01,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:29:01,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-12-13 21:29:01,829 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:29:01,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:29:01,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:29:01,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:29:01,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:29:01,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:29:01,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:29:01,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:29:01,832 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:29:01,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:29:01,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:29:01,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:29:01,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:29:01,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:29:01,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:29:01,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:29:01,834 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:29:01,834 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:29:01,834 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:29:01,834 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:29:01,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:29:01,835 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:29:01,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:29:01,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:29:01,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:29:01,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:29:01,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:29:01,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:29:01,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:29:01,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:29:01,836 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:29:01,841 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:29:01,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:29:01,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:29:01,841 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:29:01,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:29:01,842 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:29:01,842 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:29:01,842 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1d4d49264539a089c5128bd7fc98307efecaf11cb51350b8359b7fe239beab3 [2022-12-13 21:29:02,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:29:02,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:29:02,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:29:02,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:29:02,071 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:29:02,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2022-12-13 21:29:04,629 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:29:04,777 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:29:04,778 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/sv-benchmarks/c/floats-cdfpl/newton_3_2.i [2022-12-13 21:29:04,783 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/data/6e94de1ce/e54dda4a9d5d4b088be7b707a4d40b0b/FLAG7ad1fc9bb [2022-12-13 21:29:04,798 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/data/6e94de1ce/e54dda4a9d5d4b088be7b707a4d40b0b [2022-12-13 21:29:04,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:29:04,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:29:04,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:29:04,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:29:04,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:29:04,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:29:04" (1/1) ... [2022-12-13 21:29:04,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59883235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:04, skipping insertion in model container [2022-12-13 21:29:04,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:29:04" (1/1) ... [2022-12-13 21:29:04,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:29:04,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:29:04,990 WARN L237 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_54de77fa-99b7-4e2a-81a6-a371b089819b/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2022-12-13 21:29:04,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:29:05,008 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:29:05,026 WARN L237 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_54de77fa-99b7-4e2a-81a6-a371b089819b/sv-benchmarks/c/floats-cdfpl/newton_3_2.i[1764,1777] [2022-12-13 21:29:05,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:29:05,039 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:29:05,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05 WrapperNode [2022-12-13 21:29:05,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:29:05,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:29:05,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:29:05,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:29:05,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,073 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-13 21:29:05,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:29:05,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:29:05,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:29:05,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:29:05,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:29:05,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:29:05,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:29:05,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:29:05,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (1/1) ... [2022-12-13 21:29:05,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:29:05,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:29:05,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:29:05,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:29:05,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:29:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 21:29:05,169 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 21:29:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 21:29:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-12-13 21:29:05,169 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-12-13 21:29:05,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:29:05,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:29:05,223 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:29:05,224 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:29:13,650 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:29:13,655 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:29:13,655 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:29:13,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:29:13 BoogieIcfgContainer [2022-12-13 21:29:13,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:29:13,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:29:13,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:29:13,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:29:13,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:29:04" (1/3) ... [2022-12-13 21:29:13,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfc4cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:29:13, skipping insertion in model container [2022-12-13 21:29:13,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:29:05" (2/3) ... [2022-12-13 21:29:13,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfc4cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:29:13, skipping insertion in model container [2022-12-13 21:29:13,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:29:13" (3/3) ... [2022-12-13 21:29:13,664 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_2.i [2022-12-13 21:29:13,680 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:29:13,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:29:13,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:29:13,721 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1eccf94f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:29:13,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:29:13,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 21:29:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 21:29:13,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:29:13,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:29:13,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:29:13,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:29:13,734 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2022-12-13 21:29:13,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:29:13,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770599722] [2022-12-13 21:29:13,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:29:13,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:29:13,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:29:13,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:29:13,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 21:29:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:29:16,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 21:29:16,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:29:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 21:29:16,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:29:16,832 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:29:16,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770599722] [2022-12-13 21:29:16,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770599722] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:29:16,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:29:16,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:29:16,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555425645] [2022-12-13 21:29:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:29:16,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:29:16,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:29:16,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:29:16,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:29:16,859 INFO L87 Difference]: Start difference. First operand has 26 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-13 21:29:16,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:29:16,873 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2022-12-13 21:29:16,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:29:16,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 33 [2022-12-13 21:29:16,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:29:16,879 INFO L225 Difference]: With dead ends: 49 [2022-12-13 21:29:16,879 INFO L226 Difference]: Without dead ends: 22 [2022-12-13 21:29:16,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:29:16,883 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:29:16,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:29:16,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-13 21:29:16,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-13 21:29:16,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 21:29:16,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-12-13 21:29:16,907 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2022-12-13 21:29:16,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:29:16,907 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-12-13 21:29:16,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-13 21:29:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-12-13 21:29:16,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 21:29:16,908 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:29:16,909 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:29:16,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:29:17,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:29:17,111 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:29:17,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:29:17,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2022-12-13 21:29:17,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:29:17,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905997956] [2022-12-13 21:29:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:29:17,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:29:17,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:29:17,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:29:17,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54de77fa-99b7-4e2a-81a6-a371b089819b/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process