./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL --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 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:24:17,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:24:17,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:24:17,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:24:17,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:24:17,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:24:17,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:24:17,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:24:17,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:24:17,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:24:17,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:24:17,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:24:17,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:24:17,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:24:17,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:24:17,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:24:17,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:24:17,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:24:17,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:24:17,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:24:17,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:24:17,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:24:17,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:24:17,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:24:18,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:24:18,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:24:18,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:24:18,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:24:18,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:24:18,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:24:18,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:24:18,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:24:18,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:24:18,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:24:18,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:24:18,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:24:18,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:24:18,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:24:18,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:24:18,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:24:18,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:24:18,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:24:18,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:24:18,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:24:18,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:24:18,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:24:18,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:24:18,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:24:18,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:24:18,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:24:18,100 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:24:18,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:24:18,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:24:18,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:24:18,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:24:18,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:24:18,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:24:18,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:24:18,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:24:18,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:24:18,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:24:18,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:24:18,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:24:18,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:24:18,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:24:18,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:24:18,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:24:18,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:24:18,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:24:18,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:24:18,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:24:18,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:24:18,109 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:24:18,109 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:24:18,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:24:18,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:24:18,110 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_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf [2021-11-19 05:24:18,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:24:18,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:24:18,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:24:18,399 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:24:18,400 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:24:18,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2021-11-19 05:24:18,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data/e21d9076d/b2dd3a3fca52405393f5155d1d885788/FLAG7a8cbe644 [2021-11-19 05:24:19,023 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:24:19,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2021-11-19 05:24:19,032 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data/e21d9076d/b2dd3a3fca52405393f5155d1d885788/FLAG7a8cbe644 [2021-11-19 05:24:19,394 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data/e21d9076d/b2dd3a3fca52405393f5155d1d885788 [2021-11-19 05:24:19,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:24:19,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:24:19,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:24:19,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:24:19,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:24:19,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6e5a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19, skipping insertion in model container [2021-11-19 05:24:19,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:24:19,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:24:19,658 WARN L230 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_760fef30-b0e9-4716-b438-b0dacbd84624/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2021-11-19 05:24:19,664 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:24:19,685 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:24:19,732 WARN L230 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_760fef30-b0e9-4716-b438-b0dacbd84624/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2021-11-19 05:24:19,736 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:24:19,755 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:24:19,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19 WrapperNode [2021-11-19 05:24:19,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:24:19,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:24:19,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:24:19,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:24:19,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,801 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-11-19 05:24:19,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:24:19,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:24:19,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:24:19,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:24:19,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:24:19,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:24:19,859 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:24:19,859 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:24:19,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (1/1) ... [2021-11-19 05:24:19,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:24:19,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:24:19,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:24:19,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:24:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:24:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-19 05:24:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-19 05:24:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-19 05:24:19,971 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-19 05:24:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:24:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:24:19,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:24:20,053 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:24:20,055 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:24:20,159 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:24:20,168 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:24:20,168 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:24:20,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:20 BoogieIcfgContainer [2021-11-19 05:24:20,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:24:20,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:24:20,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:24:20,178 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:24:20,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:19" (1/3) ... [2021-11-19 05:24:20,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d635e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:20, skipping insertion in model container [2021-11-19 05:24:20,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:19" (2/3) ... [2021-11-19 05:24:20,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d635e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:20, skipping insertion in model container [2021-11-19 05:24:20,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:20" (3/3) ... [2021-11-19 05:24:20,182 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_3.i [2021-11-19 05:24:20,189 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:24:20,189 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:24:20,245 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:24:20,255 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 [2021-11-19 05:24:20,256 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:24:20,283 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) [2021-11-19 05:24:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-19 05:24:20,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:24:20,292 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:24:20,293 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:24:20,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:24:20,300 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-11-19 05:24:20,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:24:20,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741464775] [2021-11-19 05:24:20,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:24:20,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:24:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:24:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-19 05:24:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:24:20,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-19 05:24:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:24:20,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-19 05:24:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:24:20,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-11-19 05:24:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:24:20,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-19 05:24:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:24:20,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 05:24:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:24:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 05:24:20,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:24:20,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741464775] [2021-11-19 05:24:20,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741464775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:24:20,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:24:20,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 05:24:20,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219986996] [2021-11-19 05:24:20,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:24:20,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 05:24:20,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:24:20,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 05:24:20,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:24:20,597 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) [2021-11-19 05:24:20,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:24:20,621 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2021-11-19 05:24:20,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:24:20,624 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 [2021-11-19 05:24:20,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:24:20,632 INFO L225 Difference]: With dead ends: 49 [2021-11-19 05:24:20,632 INFO L226 Difference]: Without dead ends: 22 [2021-11-19 05:24:20,636 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:24:20,640 INFO L933 BasicCegarLoop]: 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 [2021-11-19 05:24:20,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:24:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-19 05:24:20,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-19 05:24:20,680 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) [2021-11-19 05:24:20,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-11-19 05:24:20,683 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2021-11-19 05:24:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:24:20,684 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-11-19 05:24:20,684 INFO L471 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) [2021-11-19 05:24:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-19 05:24:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-19 05:24:20,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:24:20,687 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:24:20,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:24:20,688 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:24:20,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:24:20,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2021-11-19 05:24:20,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:24:20,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165076167] [2021-11-19 05:24:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:24:20,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:24:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:24:20,715 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:24:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:24:20,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:24:20,774 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:24:20,776 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:24:20,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 05:24:20,782 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 05:24:20,786 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:24:20,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:24:20 BoogieIcfgContainer [2021-11-19 05:24:20,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:24:20,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:24:20,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:24:20,833 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:24:20,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:20" (3/4) ... [2021-11-19 05:24:20,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:24:20,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:24:20,840 INFO L158 Benchmark]: Toolchain (without parser) took 1439.80ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 68.7MB in the beginning and 59.2MB in the end (delta: 9.5MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-11-19 05:24:20,841 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory was 55.7MB in the beginning and 55.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:24:20,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.37ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 68.4MB in the beginning and 98.1MB in the end (delta: -29.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:24:20,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.86ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 96.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:24:20,854 INFO L158 Benchmark]: Boogie Preprocessor took 54.35ms. Allocated memory is still 123.7MB. Free memory was 96.3MB in the beginning and 95.4MB in the end (delta: 905.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:24:20,854 INFO L158 Benchmark]: RCFGBuilder took 312.65ms. Allocated memory is still 123.7MB. Free memory was 95.4MB in the beginning and 86.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:24:20,855 INFO L158 Benchmark]: TraceAbstraction took 657.02ms. Allocated memory is still 123.7MB. Free memory was 85.9MB in the beginning and 59.2MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-19 05:24:20,855 INFO L158 Benchmark]: Witness Printer took 5.71ms. Allocated memory is still 123.7MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:24:20,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 100.7MB. Free memory was 55.7MB in the beginning and 55.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.37ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 68.4MB in the beginning and 98.1MB in the end (delta: -29.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.86ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 96.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.35ms. Allocated memory is still 123.7MB. Free memory was 96.3MB in the beginning and 95.4MB in the end (delta: 905.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 312.65ms. Allocated memory is still 123.7MB. Free memory was 95.4MB in the beginning and 86.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 657.02ms. Allocated memory is still 123.7MB. Free memory was 85.9MB in the beginning and 59.2MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 5.71ms. Allocated memory is still 123.7MB. Free memory is still 59.2MB. 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 > -0.6f && IN < 0.6f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -0.6f && IN < 0.6f) [L42] CALL, EXPR f(IN) VAL [\old(x)=50] [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)=50, x=50] [L42] RET, EXPR f(IN) VAL [f(IN)=51, IN=50] [L42] CALL, EXPR fp(IN) VAL [\old(x)=50] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=50, x=50] [L42] RET, EXPR fp(IN) VAL [f(IN)=51, fp(IN)=55, IN=50] [L42] float x = IN - f(IN)/fp(IN); [L44] CALL, EXPR f(x) VAL [\old(x)=53] [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)=53, x=53] [L44] RET, EXPR f(x) VAL [f(x)=54, IN=50, x=53] [L44] CALL, EXPR fp(x) VAL [\old(x)=53] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=53, x=53] [L44] RET, EXPR fp(x) VAL [f(x)=54, fp(x)=56, IN=50, x=53] [L44] x = x - f(x)/fp(x) [L46] CALL, EXPR f(x) VAL [\old(x)=52] [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)=52, x=52] [L46] RET, EXPR f(x) VAL [f(x)=57, IN=50, x=52] [L46] CALL, EXPR fp(x) VAL [\old(x)=52] [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=52, x=52] [L46] RET, EXPR fp(x) VAL [f(x)=57, fp(x)=49, IN=50, x=52] [L46] x = x - f(x)/fp(x) [L50] COND TRUE !(x < 0.1) VAL [IN=50] [L51] reach_error() VAL [IN=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 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 [2021-11-19 05:24:20,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL --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 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:24:24,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:24:24,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:24:24,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:24:24,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:24:24,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:24:24,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:24:24,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:24:24,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:24:24,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:24:24,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:24:24,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:24:24,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:24:24,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:24:24,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:24:24,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:24:24,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:24:24,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:24:24,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:24:24,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:24:24,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:24:24,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:24:24,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:24:24,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:24:24,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:24:24,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:24:24,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:24:24,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:24:24,141 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:24:24,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:24:24,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:24:24,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:24:24,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:24:24,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:24:24,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:24:24,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:24:24,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:24:24,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:24:24,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:24:24,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:24:24,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:24:24,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 05:24:24,233 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:24:24,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:24:24,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:24:24,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:24:24,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:24:24,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:24:24,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:24:24,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:24:24,238 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:24:24,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:24:24,240 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:24:24,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:24:24,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:24:24,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:24:24,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:24:24,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:24:24,242 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 05:24:24,242 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 05:24:24,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:24:24,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:24:24,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:24:24,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:24:24,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:24:24,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:24:24,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:24:24,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:24:24,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:24:24,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:24:24,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:24:24,246 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 05:24:24,246 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 05:24:24,246 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:24:24,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:24:24,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:24:24,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:24:24,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 05:24:24,248 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_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80fd4740764bb080a15992509adea65cef879c142a7dc8c64ce34585d70bbeaf [2021-11-19 05:24:24,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:24:24,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:24:24,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:24:24,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:24:24,703 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:24:24,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2021-11-19 05:24:24,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data/4840c0583/f9b14f5b193540eaa3056889615a7dcd/FLAG57bfc0ded [2021-11-19 05:24:25,470 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:24:25,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/sv-benchmarks/c/floats-cdfpl/newton_3_3.i [2021-11-19 05:24:25,486 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data/4840c0583/f9b14f5b193540eaa3056889615a7dcd/FLAG57bfc0ded [2021-11-19 05:24:25,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/data/4840c0583/f9b14f5b193540eaa3056889615a7dcd [2021-11-19 05:24:25,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:24:25,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:24:25,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:24:25,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:24:25,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:24:25,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:25" (1/1) ... [2021-11-19 05:24:25,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39bb8bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:25, skipping insertion in model container [2021-11-19 05:24:25,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:25" (1/1) ... [2021-11-19 05:24:25,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:24:25,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:24:26,094 WARN L230 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_760fef30-b0e9-4716-b438-b0dacbd84624/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2021-11-19 05:24:26,098 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:24:26,114 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:24:26,148 WARN L230 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_760fef30-b0e9-4716-b438-b0dacbd84624/sv-benchmarks/c/floats-cdfpl/newton_3_3.i[1764,1777] [2021-11-19 05:24:26,149 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:24:26,205 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:24:26,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26 WrapperNode [2021-11-19 05:24:26,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:24:26,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:24:26,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:24:26,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:24:26,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,316 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-11-19 05:24:26,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:24:26,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:24:26,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:24:26,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:24:26,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:24:26,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:24:26,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:24:26,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:24:26,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (1/1) ... [2021-11-19 05:24:26,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:24:26,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:24:26,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:24:26,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:24:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:24:26,486 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-19 05:24:26,486 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-19 05:24:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 05:24:26,487 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-11-19 05:24:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-11-19 05:24:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:24:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:24:26,595 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:24:26,598 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:24:34,744 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:24:34,751 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:24:34,751 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:24:34,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:34 BoogieIcfgContainer [2021-11-19 05:24:34,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:24:34,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:24:34,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:24:34,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:24:34,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:25" (1/3) ... [2021-11-19 05:24:34,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad24d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:34, skipping insertion in model container [2021-11-19 05:24:34,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:26" (2/3) ... [2021-11-19 05:24:34,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad24d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:34, skipping insertion in model container [2021-11-19 05:24:34,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:34" (3/3) ... [2021-11-19 05:24:34,764 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_3.i [2021-11-19 05:24:34,770 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:24:34,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:24:34,826 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:24:34,841 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 [2021-11-19 05:24:34,842 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:24:34,865 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) [2021-11-19 05:24:34,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-19 05:24:34,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:24:34,873 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:24:34,873 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:24:34,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:24:34,880 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-11-19 05:24:34,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:24:34,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634828008] [2021-11-19 05:24:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:24:34,896 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:24:34,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:24:34,906 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:24:34,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 05:24:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:24:38,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 05:24:38,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:24:38,902 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 05:24:38,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:24:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-19 05:24:39,103 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:24:39,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1634828008] [2021-11-19 05:24:39,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1634828008] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:24:39,104 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:24:39,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 05:24:39,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862696522] [2021-11-19 05:24:39,107 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:24:39,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 05:24:39,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:24:39,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 05:24:39,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:24:39,145 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-19 05:24:39,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:24:39,178 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2021-11-19 05:24:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:24:39,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 33 [2021-11-19 05:24:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:24:39,193 INFO L225 Difference]: With dead ends: 49 [2021-11-19 05:24:39,194 INFO L226 Difference]: Without dead ends: 22 [2021-11-19 05:24:39,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:24:39,205 INFO L933 BasicCegarLoop]: 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 [2021-11-19 05:24:39,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:24:39,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-19 05:24:39,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-19 05:24:39,267 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) [2021-11-19 05:24:39,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-11-19 05:24:39,271 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2021-11-19 05:24:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:24:39,273 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-11-19 05:24:39,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-19 05:24:39,275 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-19 05:24:39,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-19 05:24:39,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:24:39,278 INFO L514 BasicCegarLoop]: 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] [2021-11-19 05:24:39,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-19 05:24:39,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:24:39,502 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:24:39,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:24:39,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2021-11-19 05:24:39,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:24:39,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591156298] [2021-11-19 05:24:39,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:24:39,505 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:24:39,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:24:39,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:24:39,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760fef30-b0e9-4716-b438-b0dacbd84624/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process