./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa --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 aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:55:42,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:55:42,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:55:42,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:55:42,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:55:42,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:55:42,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:55:42,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:55:42,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:55:42,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:55:42,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:55:42,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:55:42,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:55:42,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:55:42,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:55:42,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:55:42,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:55:42,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:55:42,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:55:42,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:55:42,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:55:42,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:55:42,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:55:42,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:55:42,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:55:42,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:55:42,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:55:42,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:55:42,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:55:42,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:55:42,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:55:42,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:55:42,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:55:42,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:55:42,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:55:42,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:55:42,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:55:42,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:55:42,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:55:42,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:55:42,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:55:42,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:55:42,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:55:42,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:55:42,781 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:55:42,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:55:42,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:55:42,782 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:55:42,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:55:42,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:55:42,783 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:55:42,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:55:42,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:55:42,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:55:42,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:55:42,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:55:42,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:55:42,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:55:42,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:55:42,785 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:55:42,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:55:42,785 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:55:42,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:55:42,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:55:42,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:55:42,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:55:42,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:55:42,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:55:42,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:55:42,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:55:42,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:55:42,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:55:42,787 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:55:42,787 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:55:42,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:55:42,788 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:55:42,788 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_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 [2021-12-06 22:55:42,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:55:43,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:55:43,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:55:43,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:55:43,004 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:55:43,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2021-12-06 22:55:43,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data/30974a53d/e0480bcaec6c4d47a3b53bc75f454229/FLAG383d6370f [2021-12-06 22:55:43,423 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:55:43,423 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2021-12-06 22:55:43,430 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data/30974a53d/e0480bcaec6c4d47a3b53bc75f454229/FLAG383d6370f [2021-12-06 22:55:43,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data/30974a53d/e0480bcaec6c4d47a3b53bc75f454229 [2021-12-06 22:55:43,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:55:43,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:55:43,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:55:43,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:55:43,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:55:43,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9c56ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43, skipping insertion in model container [2021-12-06 22:55:43,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:55:43,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:55:43,606 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_9a13d890-3f85-45ae-81c8-b68580b3dbb7/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2021-12-06 22:55:43,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:55:43,614 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:55:43,627 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_9a13d890-3f85-45ae-81c8-b68580b3dbb7/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2021-12-06 22:55:43,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:55:43,637 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:55:43,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43 WrapperNode [2021-12-06 22:55:43,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:55:43,638 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:55:43,638 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:55:43,638 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:55:43,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,661 INFO L137 Inliner]: procedures = 17, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2021-12-06 22:55:43,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:55:43,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:55:43,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:55:43,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:55:43,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:55:43,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:55:43,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:55:43,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:55:43,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (1/1) ... [2021-12-06 22:55:43,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:55:43,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:55:43,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:55:43,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:55:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:55:43,736 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-12-06 22:55:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-12-06 22:55:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-12-06 22:55:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-12-06 22:55:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:55:43,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:55:43,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:55:43,785 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:55:43,786 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:55:43,846 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:55:43,850 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:55:43,850 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:55:43,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:55:43 BoogieIcfgContainer [2021-12-06 22:55:43,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:55:43,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:55:43,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:55:43,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:55:43,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:55:43" (1/3) ... [2021-12-06 22:55:43,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2b976b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:55:43, skipping insertion in model container [2021-12-06 22:55:43,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:43" (2/3) ... [2021-12-06 22:55:43,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c2b976b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:55:43, skipping insertion in model container [2021-12-06 22:55:43,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:55:43" (3/3) ... [2021-12-06 22:55:43,857 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_5.i [2021-12-06 22:55:43,861 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:55:43,861 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:55:43,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:55:43,901 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 [2021-12-06 22:55:43,901 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:55:43,914 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) [2021-12-06 22:55:43,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 22:55:43,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:55:43,919 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] [2021-12-06 22:55:43,920 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:55:43,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:55:43,924 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-12-06 22:55:43,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:55:43,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889501606] [2021-12-06 22:55:43,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:55:43,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:55:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:55:44,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-06 22:55:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:55:44,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:55:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:55:44,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 22:55:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:55:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 22:55:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:55:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 22:55:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:55:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 22:55:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:55:44,070 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 22:55:44,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:55:44,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889501606] [2021-12-06 22:55:44,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889501606] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:55:44,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:55:44,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:55:44,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529860209] [2021-12-06 22:55:44,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:55:44,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 22:55:44,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:55:44,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 22:55:44,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 22:55:44,098 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) [2021-12-06 22:55:44,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:55:44,113 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2021-12-06 22:55:44,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 22:55:44,114 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 [2021-12-06 22:55:44,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:55:44,119 INFO L225 Difference]: With dead ends: 49 [2021-12-06 22:55:44,119 INFO L226 Difference]: Without dead ends: 22 [2021-12-06 22:55:44,121 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 [2021-12-06 22:55:44,124 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 [2021-12-06 22:55:44,125 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] [2021-12-06 22:55:44,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-06 22:55:44,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-06 22:55:44,150 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) [2021-12-06 22:55:44,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-06 22:55:44,152 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2021-12-06 22:55:44,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:55:44,152 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-06 22:55:44,153 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) [2021-12-06 22:55:44,153 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-12-06 22:55:44,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 22:55:44,154 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:55:44,154 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] [2021-12-06 22:55:44,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:55:44,155 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:55:44,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:55:44,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2021-12-06 22:55:44,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:55:44,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872405654] [2021-12-06 22:55:44,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:55:44,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:55:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:55:44,176 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:55:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:55:44,211 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:55:44,211 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:55:44,212 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 22:55:44,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:55:44,217 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 22:55:44,219 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:55:44,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:55:44 BoogieIcfgContainer [2021-12-06 22:55:44,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:55:44,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:55:44,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:55:44,240 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:55:44,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:55:43" (3/4) ... [2021-12-06 22:55:44,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:55:44,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:55:44,243 INFO L158 Benchmark]: Toolchain (without parser) took 798.44ms. Allocated memory is still 107.0MB. Free memory was 70.8MB in the beginning and 81.2MB in the end (delta: -10.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:55:44,243 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:55:44,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.65ms. Allocated memory is still 107.0MB. Free memory was 70.5MB in the beginning and 82.2MB in the end (delta: -11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:55:44,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.85ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 80.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:55:44,245 INFO L158 Benchmark]: Boogie Preprocessor took 14.34ms. Allocated memory is still 107.0MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 864.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:55:44,245 INFO L158 Benchmark]: RCFGBuilder took 175.24ms. Allocated memory is still 107.0MB. Free memory was 79.3MB in the beginning and 70.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:55:44,245 INFO L158 Benchmark]: TraceAbstraction took 386.57ms. Allocated memory is still 107.0MB. Free memory was 70.1MB in the beginning and 81.7MB in the end (delta: -11.7MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2021-12-06 22:55:44,246 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 107.0MB. Free memory was 81.7MB in the beginning and 81.2MB in the end (delta: 561.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:55:44,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.65ms. Allocated memory is still 107.0MB. Free memory was 70.5MB in the beginning and 82.2MB in the end (delta: -11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.85ms. Allocated memory is still 107.0MB. Free memory was 81.8MB in the beginning and 80.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.34ms. Allocated memory is still 107.0MB. Free memory was 80.6MB in the beginning and 79.7MB in the end (delta: 864.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 175.24ms. Allocated memory is still 107.0MB. Free memory was 79.3MB in the beginning and 70.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 386.57ms. Allocated memory is still 107.0MB. Free memory was 70.1MB in the beginning and 81.7MB in the end (delta: -11.7MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 107.0MB. Free memory was 81.7MB in the beginning and 81.2MB in the end (delta: 561.4kB). 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 > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [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: 0.3s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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 [2021-12-06 22:55:44,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/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_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa --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 aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:55:45,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:55:45,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:55:45,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:55:45,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:55:45,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:55:45,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:55:45,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:55:45,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:55:45,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:55:45,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:55:45,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:55:45,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:55:45,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:55:45,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:55:45,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:55:45,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:55:45,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:55:45,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:55:45,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:55:45,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:55:45,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:55:45,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:55:45,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:55:45,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:55:45,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:55:45,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:55:45,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:55:45,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:55:45,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:55:45,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:55:45,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:55:45,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:55:45,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:55:45,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:55:45,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:55:45,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:55:45,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:55:45,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:55:45,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:55:45,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:55:45,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 22:55:45,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:55:45,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:55:45,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:55:45,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:55:45,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:55:45,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:55:45,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:55:45,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:55:45,914 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:55:45,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:55:45,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:55:45,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:55:45,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:55:45,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:55:45,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:55:45,915 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:55:45,915 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 22:55:45,915 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 22:55:45,915 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 22:55:45,915 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:55:45,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:55:45,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:55:45,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:55:45,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:55:45,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:55:45,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:55:45,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:55:45,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:55:45,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:55:45,916 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:55:45,917 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 22:55:45,917 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 22:55:45,917 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:55:45,917 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:55:45,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:55:45,917 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:55:45,917 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 22:55:45,917 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_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aff730f31ff7b239408d0cd565f5a07c7b3c4734d0135b4cb53a3d08d1899542 [2021-12-06 22:55:46,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:55:46,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:55:46,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:55:46,171 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:55:46,171 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:55:46,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2021-12-06 22:55:46,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data/381a69372/4acfa6b284114a99a5cfb7f8b90100ca/FLAG1f3667ba6 [2021-12-06 22:55:46,619 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:55:46,620 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/sv-benchmarks/c/floats-cdfpl/newton_3_5.i [2021-12-06 22:55:46,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data/381a69372/4acfa6b284114a99a5cfb7f8b90100ca/FLAG1f3667ba6 [2021-12-06 22:55:46,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/data/381a69372/4acfa6b284114a99a5cfb7f8b90100ca [2021-12-06 22:55:46,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:55:46,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:55:46,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:55:46,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:55:46,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:55:46,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cb5c854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46, skipping insertion in model container [2021-12-06 22:55:46,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:55:46,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:55:46,776 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_9a13d890-3f85-45ae-81c8-b68580b3dbb7/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2021-12-06 22:55:46,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:55:46,786 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:55:46,809 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_9a13d890-3f85-45ae-81c8-b68580b3dbb7/sv-benchmarks/c/floats-cdfpl/newton_3_5.i[1764,1777] [2021-12-06 22:55:46,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:55:46,824 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:55:46,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46 WrapperNode [2021-12-06 22:55:46,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:55:46,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:55:46,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:55:46,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:55:46,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,857 INFO L137 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-12-06 22:55:46,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:55:46,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:55:46,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:55:46,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:55:46,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:55:46,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:55:46,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:55:46,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:55:46,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (1/1) ... [2021-12-06 22:55:46,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:55:46,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:55:46,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:55:46,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:55:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:55:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-12-06 22:55:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-12-06 22:55:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 22:55:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2021-12-06 22:55:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2021-12-06 22:55:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:55:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:55:46,990 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:55:46,991 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:55:55,804 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:55:55,809 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:55:55,809 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:55:55,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:55:55 BoogieIcfgContainer [2021-12-06 22:55:55,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:55:55,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:55:55,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:55:55,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:55:55,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:55:46" (1/3) ... [2021-12-06 22:55:55,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4278c07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:55:55, skipping insertion in model container [2021-12-06 22:55:55,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:55:46" (2/3) ... [2021-12-06 22:55:55,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4278c07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:55:55, skipping insertion in model container [2021-12-06 22:55:55,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:55:55" (3/3) ... [2021-12-06 22:55:55,818 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_5.i [2021-12-06 22:55:55,822 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:55:55,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:55:55,857 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:55:55,862 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 [2021-12-06 22:55:55,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:55:55,874 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) [2021-12-06 22:55:55,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 22:55:55,878 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:55:55,878 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] [2021-12-06 22:55:55,879 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:55:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:55:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash 694828395, now seen corresponding path program 1 times [2021-12-06 22:55:55,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:55:55,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948172045] [2021-12-06 22:55:55,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:55:55,893 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:55:55,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:55:55,894 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:55:55,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 22:55:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:55:58,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 22:55:58,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:55:59,140 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 22:55:59,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:55:59,141 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:55:59,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948172045] [2021-12-06 22:55:59,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948172045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:55:59,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:55:59,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:55:59,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205781240] [2021-12-06 22:55:59,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:55:59,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 22:55:59,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:55:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 22:55:59,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 22:55:59,174 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) [2021-12-06 22:55:59,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:55:59,189 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2021-12-06 22:55:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 22:55:59,191 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 [2021-12-06 22:55:59,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:55:59,196 INFO L225 Difference]: With dead ends: 49 [2021-12-06 22:55:59,196 INFO L226 Difference]: Without dead ends: 22 [2021-12-06 22:55:59,198 INFO L932 BasicCegarLoop]: 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 [2021-12-06 22:55:59,202 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 [2021-12-06 22:55:59,203 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] [2021-12-06 22:55:59,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-06 22:55:59,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-06 22:55:59,229 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) [2021-12-06 22:55:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-12-06 22:55:59,232 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 33 [2021-12-06 22:55:59,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:55:59,232 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-12-06 22:55:59,233 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) [2021-12-06 22:55:59,233 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-12-06 22:55:59,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 22:55:59,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:55:59,235 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] [2021-12-06 22:55:59,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:55:59,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:55:59,436 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:55:59,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:55:59,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1396428269, now seen corresponding path program 1 times [2021-12-06 22:55:59,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:55:59,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199757713] [2021-12-06 22:55:59,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:55:59,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:55:59,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:55:59,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:55:59,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a13d890-3f85-45ae-81c8-b68580b3dbb7/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process