./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/newton_1_8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_8.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9a455407b4fd80f1691ee95c228274faaa3c38f0 ..................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cdfpl/newton_1_8.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9a455407b4fd80f1691ee95c228274faaa3c38f0 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:11:13,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:11:13,668 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:11:13,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:11:13,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:11:13,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:11:13,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:11:13,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:11:13,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:11:13,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:11:13,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:11:13,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:11:13,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:11:13,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:11:13,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:11:13,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:11:13,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:11:13,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:11:13,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:11:13,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:11:13,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:11:13,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:11:13,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:11:13,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:11:13,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:11:13,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:11:13,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:11:13,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:11:13,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:11:13,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:11:13,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:11:13,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:11:13,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:11:13,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:11:13,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:11:13,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:11:13,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:11:13,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:11:13,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:11:13,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:11:13,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:11:13,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 06:11:13,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:11:13,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:11:13,780 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:11:13,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:11:13,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:11:13,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:11:13,782 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:11:13,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:11:13,782 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:11:13,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:11:13,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:11:13,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:11:13,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:11:13,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:11:13,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:11:13,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:11:13,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:11:13,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:11:13,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 06:11:13,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 06:11:13,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:11:13,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:11:13,785 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a455407b4fd80f1691ee95c228274faaa3c38f0 [2021-08-29 06:11:14,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:11:14,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:11:14,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:11:14,062 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:11:14,062 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:11:14,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2021-08-29 06:11:14,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73e7ab63/ba7fc83289f4465ca8e20b6087515f29/FLAG6826e46bd [2021-08-29 06:11:14,502 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:11:14,503 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2021-08-29 06:11:14,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73e7ab63/ba7fc83289f4465ca8e20b6087515f29/FLAG6826e46bd [2021-08-29 06:11:14,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73e7ab63/ba7fc83289f4465ca8e20b6087515f29 [2021-08-29 06:11:14,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:11:14,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:11:14,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:11:14,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:11:14,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:11:14,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6073cdac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14, skipping insertion in model container [2021-08-29 06:11:14,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:11:14,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:11:14,618 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1224,1237] [2021-08-29 06:11:14,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:11:14,625 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:11:14,674 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1224,1237] [2021-08-29 06:11:14,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:11:14,685 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:11:14,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14 WrapperNode [2021-08-29 06:11:14,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:11:14,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:11:14,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:11:14,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:11:14,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:11:14,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:11:14,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:11:14,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:11:14,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:11:14,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:11:14,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:11:14,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:11:14,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (1/1) ... [2021-08-29 06:11:14,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:11:14,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:11:14,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:11:14,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:11:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 06:11:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:11:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:11:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:11:14,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:11:14,973 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 06:11:14,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:14 BoogieIcfgContainer [2021-08-29 06:11:14,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:11:14,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:11:14,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:11:14,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:11:14,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:11:14" (1/3) ... [2021-08-29 06:11:14,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2c77c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:11:14, skipping insertion in model container [2021-08-29 06:11:14,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:14" (2/3) ... [2021-08-29 06:11:14,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2c77c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:11:14, skipping insertion in model container [2021-08-29 06:11:14,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:14" (3/3) ... [2021-08-29 06:11:14,979 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_8.i [2021-08-29 06:11:14,982 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:11:14,983 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:11:15,013 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:11:15,018 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-29 06:11:15,018 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:11:15,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:11:15,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:11:15,037 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:11:15,038 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:11:15,038 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:11:15,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:11:15,042 INFO L82 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-08-29 06:11:15,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:11:15,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962403922] [2021-08-29 06:11:15,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:11:15,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:11:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:11:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:11:15,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 06:11:15,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962403922] [2021-08-29 06:11:15,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962403922] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 06:11:15,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:11:15,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 06:11:15,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51918455] [2021-08-29 06:11:15,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 06:11:15,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 06:11:15,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 06:11:15,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:11:15,220 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:11:15,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:11:15,278 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-08-29 06:11:15,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 06:11:15,281 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 06:11:15,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:11:15,285 INFO L225 Difference]: With dead ends: 23 [2021-08-29 06:11:15,285 INFO L226 Difference]: Without dead ends: 9 [2021-08-29 06:11:15,287 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:11:15,290 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.24ms IncrementalHoareTripleChecker+Time [2021-08-29 06:11:15,290 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.18ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 48.24ms Time] [2021-08-29 06:11:15,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-29 06:11:15,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-29 06:11:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:11:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-08-29 06:11:15,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-08-29 06:11:15,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:11:15,339 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-08-29 06:11:15,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:11:15,340 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-08-29 06:11:15,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:11:15,340 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:11:15,340 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:11:15,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 06:11:15,340 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:11:15,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:11:15,341 INFO L82 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-08-29 06:11:15,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:11:15,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971974999] [2021-08-29 06:11:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:11:15,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:11:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:11:15,355 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:11:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:11:15,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 06:11:15,395 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:11:15,397 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:11:15,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 06:11:15,411 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:11:15,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:11:15 BoogieIcfgContainer [2021-08-29 06:11:15,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:11:15,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:11:15,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:11:15,442 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:11:15,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:14" (3/4) ... [2021-08-29 06:11:15,444 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 06:11:15,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:11:15,445 INFO L158 Benchmark]: Toolchain (without parser) took 927.54ms. Allocated memory was 58.7MB in the beginning and 94.4MB in the end (delta: 35.7MB). Free memory was 37.3MB in the beginning and 57.7MB in the end (delta: -20.4MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2021-08-29 06:11:15,445 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 58.7MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 42.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:11:15,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.98ms. Allocated memory is still 58.7MB. Free memory was 37.1MB in the beginning and 41.7MB in the end (delta: -4.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 06:11:15,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.10ms. Allocated memory is still 58.7MB. Free memory was 41.6MB in the beginning and 40.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:11:15,447 INFO L158 Benchmark]: Boogie Preprocessor took 28.23ms. Allocated memory is still 58.7MB. Free memory was 40.0MB in the beginning and 39.1MB in the end (delta: 928.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:11:15,447 INFO L158 Benchmark]: RCFGBuilder took 232.40ms. Allocated memory is still 58.7MB. Free memory was 39.1MB in the beginning and 31.2MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 06:11:15,447 INFO L158 Benchmark]: TraceAbstraction took 466.28ms. Allocated memory was 58.7MB in the beginning and 94.4MB in the end (delta: 35.7MB). Free memory was 30.5MB in the beginning and 58.1MB in the end (delta: -27.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-08-29 06:11:15,448 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 94.4MB. Free memory was 58.1MB in the beginning and 57.7MB in the end (delta: 391.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:11:15,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 58.7MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 42.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.98ms. Allocated memory is still 58.7MB. Free memory was 37.1MB in the beginning and 41.7MB in the end (delta: -4.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.10ms. Allocated memory is still 58.7MB. Free memory was 41.6MB in the beginning and 40.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.23ms. Allocated memory is still 58.7MB. Free memory was 40.0MB in the beginning and 39.1MB in the end (delta: 928.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 232.40ms. Allocated memory is still 58.7MB. Free memory was 39.1MB in the beginning and 31.2MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 466.28ms. Allocated memory was 58.7MB in the beginning and 94.4MB in the end (delta: 35.7MB). Free memory was 30.5MB in the beginning and 58.1MB in the end (delta: -27.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 94.4MB. Free memory was 58.1MB in the beginning and 57.7MB in the end (delta: 391.5kB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticFLOAToperation at line 33. Possible FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 397.92ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 6.22ms, AutomataDifference: 94.74ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.76ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 48.24ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 43.88ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 12 mSolverCounterSat, 0.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 22.47ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.38ms SsaConstructionTime, 33.39ms SatisfiabilityAnalysisTime, 74.10ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-29 06:11:15,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:11:17,136 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-29 06:11:17,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:11:17,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:11:17,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:11:17,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:11:17,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:11:17,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:11:17,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:11:17,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:11:17,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:11:17,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:11:17,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:11:17,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 06:11:17,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:11:17,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:11:17,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:11:17,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:11:17,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:11:17,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:11:17,249 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:11:17,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:11:17,249 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:11:17,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:11:17,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:11:17,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:11:17,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:11:17,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 06:11:17,252 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a455407b4fd80f1691ee95c228274faaa3c38f0 [2021-08-29 06:11:17,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:11:17,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:11:17,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:11:17,525 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:11:17,526 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:11:17,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2021-08-29 06:11:17,605 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e344f05e/d56f53f473404b16912c6e2c146ecc8c/FLAG93fc57e77 [2021-08-29 06:11:17,918 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:11:17,918 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i [2021-08-29 06:11:17,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e344f05e/d56f53f473404b16912c6e2c146ecc8c/FLAG93fc57e77 [2021-08-29 06:11:18,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e344f05e/d56f53f473404b16912c6e2c146ecc8c [2021-08-29 06:11:18,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:11:18,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:11:18,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:11:18,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:11:18,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:11:18,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da42aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18, skipping insertion in model container [2021-08-29 06:11:18,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:11:18,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:11:18,458 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1224,1237] [2021-08-29 06:11:18,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:11:18,467 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:11:18,508 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/newton_1_8.i[1224,1237] [2021-08-29 06:11:18,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:11:18,538 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:11:18,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18 WrapperNode [2021-08-29 06:11:18,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:11:18,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:11:18,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:11:18,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:11:18,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:11:18,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:11:18,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:11:18,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:11:18,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:11:18,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:11:18,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:11:18,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:11:18,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (1/1) ... [2021-08-29 06:11:18,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:11:18,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:11:18,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:11:18,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:11:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 06:11:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:11:18,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:11:18,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:11:18,796 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:11:18,796 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-29 06:11:18,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:18 BoogieIcfgContainer [2021-08-29 06:11:18,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:11:18,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:11:18,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:11:18,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:11:18,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:11:18" (1/3) ... [2021-08-29 06:11:18,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8c9254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:11:18, skipping insertion in model container [2021-08-29 06:11:18,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:11:18" (2/3) ... [2021-08-29 06:11:18,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f8c9254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:11:18, skipping insertion in model container [2021-08-29 06:11:18,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:18" (3/3) ... [2021-08-29 06:11:18,806 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_8.i [2021-08-29 06:11:18,810 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:11:18,810 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:11:18,842 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:11:18,846 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-29 06:11:18,847 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:11:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:11:18,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:11:18,857 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:11:18,858 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:11:18,858 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:11:18,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:11:18,862 INFO L82 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-08-29 06:11:18,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:11:18,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075032820] [2021-08-29 06:11:18,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:11:18,870 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:11:18,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:11:18,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:11:18,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 06:11:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:11:19,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 06:11:19,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:11:19,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:11:19,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:11:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:11:19,906 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:11:19,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075032820] [2021-08-29 06:11:19,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075032820] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:11:19,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:11:19,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 06:11:19,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464908358] [2021-08-29 06:11:19,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 06:11:19,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:11:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 06:11:19,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:11:19,929 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:11:22,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 06:11:25,749 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 06:11:28,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 06:11:28,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:11:28,419 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-08-29 06:11:28,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 06:11:28,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 06:11:28,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:11:28,426 INFO L225 Difference]: With dead ends: 23 [2021-08-29 06:11:28,426 INFO L226 Difference]: Without dead ends: 9 [2021-08-29 06:11:28,428 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.05ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 06:11:28,432 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7981.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8476.84ms IncrementalHoareTripleChecker+Time [2021-08-29 06:11:28,433 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.23ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 3 Unknown, 0 Unchecked, 8476.84ms Time] [2021-08-29 06:11:28,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-29 06:11:28,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-29 06:11:28,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:11:28,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-08-29 06:11:28,489 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-08-29 06:11:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:11:28,489 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-08-29 06:11:28,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:11:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-08-29 06:11:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 06:11:28,491 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:11:28,491 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:11:28,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-29 06:11:28,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:11:28,692 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:11:28,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:11:28,693 INFO L82 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-08-29 06:11:28,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:11:28,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118814053] [2021-08-29 06:11:28,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:11:28,694 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:11:28,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:11:28,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:11:28,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 06:11:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:11:33,810 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:11:42,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:11:42,584 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-29 06:11:42,584 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:11:42,585 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:11:42,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-29 06:11:42,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:11:42,791 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:11:42,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:11:42 BoogieIcfgContainer [2021-08-29 06:11:42,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:11:42,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:11:42,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:11:42,815 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:11:42,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:11:18" (3/4) ... [2021-08-29 06:11:42,817 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 06:11:42,848 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 06:11:42,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:11:42,850 INFO L158 Benchmark]: Toolchain (without parser) took 24504.32ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 49.9MB in the beginning and 66.1MB in the end (delta: -16.2MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2021-08-29 06:11:42,850 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:11:42,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.05ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 52.4MB in the end (delta: -2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 06:11:42,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.40ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 50.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:11:42,852 INFO L158 Benchmark]: Boogie Preprocessor took 32.29ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 49.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:11:42,852 INFO L158 Benchmark]: RCFGBuilder took 187.32ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 41.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:11:42,853 INFO L158 Benchmark]: TraceAbstraction took 24013.87ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 40.5MB in the beginning and 67.7MB in the end (delta: -27.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-08-29 06:11:42,853 INFO L158 Benchmark]: Witness Printer took 34.60ms. Allocated memory is still 102.8MB. Free memory was 67.7MB in the beginning and 66.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:11:42,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 49.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.05ms. Allocated memory is still 69.2MB. Free memory was 49.7MB in the beginning and 52.4MB in the end (delta: -2.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.40ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 50.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.29ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 49.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 187.32ms. Allocated memory is still 69.2MB. Free memory was 49.3MB in the beginning and 41.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 24013.87ms. Allocated memory was 69.2MB in the beginning and 102.8MB in the end (delta: 33.6MB). Free memory was 40.5MB in the beginning and 67.7MB in the end (delta: -27.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 34.60ms. Allocated memory is still 102.8MB. Free memory was 67.7MB in the beginning and 66.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23949.83ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 6.32ms, AutomataDifference: 8522.36ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 5.14ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 8476.84ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 7981.55ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 9 mSolverCounterSat, 0.23ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.05ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 26.06ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.01ms SsaConstructionTime, 5935.00ms SatisfiabilityAnalysisTime, 150.74ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-29 06:11:42,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...