./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/sine_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/sine_7.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 11a173a69560d75c2eb39d6ac1ff4cdd28ef28d2 ..................................................................................................................................................................................................................................................................................... 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/sine_7.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 11a173a69560d75c2eb39d6ac1ff4cdd28ef28d2 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 23:56:41,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 23:56:41,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 23:56:41,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 23:56:41,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 23:56:41,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 23:56:41,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 23:56:41,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 23:56:41,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 23:56:41,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 23:56:41,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 23:56:41,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 23:56:41,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 23:56:41,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 23:56:41,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 23:56:41,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 23:56:41,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 23:56:41,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 23:56:41,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 23:56:41,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 23:56:41,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 23:56:41,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 23:56:41,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 23:56:41,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 23:56:41,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 23:56:41,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 23:56:41,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 23:56:41,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 23:56:41,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 23:56:41,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 23:56:41,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 23:56:41,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 23:56:41,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 23:56:41,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 23:56:41,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 23:56:41,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 23:56:41,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 23:56:41,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 23:56:41,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 23:56:41,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 23:56:41,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 23:56:41,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 23:56:41,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 23:56:41,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 23:56:41,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 23:56:41,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 23:56:41,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 23:56:41,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 23:56:41,781 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 23:56:41,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 23:56:41,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 23:56:41,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 23:56:41,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 23:56:41,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 23:56:41,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 23:56:41,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 23:56:41,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 23:56:41,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 23:56:41,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 23:56:41,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 23:56:41,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 23:56:41,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 23:56:41,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 23:56:41,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 23:56:41,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 23:56:41,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 23:56:41,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 23:56:41,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 23:56:41,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 23:56:41,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 23:56:41,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 23:56:41,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 23:56:41,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a173a69560d75c2eb39d6ac1ff4cdd28ef28d2 [2021-08-25 23:56:42,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 23:56:42,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 23:56:42,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 23:56:42,075 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 23:56:42,075 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 23:56:42,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_7.i [2021-08-25 23:56:42,113 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89c0bb04e/bfe8c2bd90ce4979899375d76941240a/FLAG02a99a198 [2021-08-25 23:56:42,454 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 23:56:42,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_7.i [2021-08-25 23:56:42,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89c0bb04e/bfe8c2bd90ce4979899375d76941240a/FLAG02a99a198 [2021-08-25 23:56:42,891 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89c0bb04e/bfe8c2bd90ce4979899375d76941240a [2021-08-25 23:56:42,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 23:56:42,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 23:56:42,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 23:56:42,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 23:56:42,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 23:56:42,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 11:56:42" (1/1) ... [2021-08-25 23:56:42,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e881223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:42, skipping insertion in model container [2021-08-25 23:56:42,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 11:56:42" (1/1) ... [2021-08-25 23:56:42,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 23:56:42,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 23:56:43,116 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/sine_7.i[1143,1156] [2021-08-25 23:56:43,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 23:56:43,127 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 23:56:43,149 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/sine_7.i[1143,1156] [2021-08-25 23:56:43,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 23:56:43,157 INFO L208 MainTranslator]: Completed translation [2021-08-25 23:56:43,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43 WrapperNode [2021-08-25 23:56:43,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 23:56:43,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 23:56:43,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 23:56:43,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 23:56:43,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,227 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 23:56:43,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 23:56:43,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 23:56:43,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 23:56:43,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 23:56:43,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 23:56:43,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 23:56:43,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 23:56:43,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (1/1) ... [2021-08-25 23:56:43,258 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 23:56:43,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 23:56:43,290 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) [2021-08-25 23:56:43,337 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 [2021-08-25 23:56:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 23:56:43,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 23:56:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 23:56:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 23:56:43,537 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 23:56:43,538 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-25 23:56:43,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:56:43 BoogieIcfgContainer [2021-08-25 23:56:43,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 23:56:43,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 23:56:43,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 23:56:43,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 23:56:43,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 11:56:42" (1/3) ... [2021-08-25 23:56:43,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486433c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 11:56:43, skipping insertion in model container [2021-08-25 23:56:43,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:43" (2/3) ... [2021-08-25 23:56:43,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486433c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 11:56:43, skipping insertion in model container [2021-08-25 23:56:43,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:56:43" (3/3) ... [2021-08-25 23:56:43,574 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_7.i [2021-08-25 23:56:43,577 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 23:56:43,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 23:56:43,627 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 23:56:43,634 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 [2021-08-25 23:56:43,634 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 23:56:43,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-08-25 23:56:43,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-25 23:56:43,657 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 23:56:43,657 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-25 23:56:43,658 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 23:56:43,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 23:56:43,664 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-08-25 23:56:43,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 23:56:43,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864797261] [2021-08-25 23:56:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 23:56:43,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 23:56:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 23:56:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 23:56:43,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 23:56:43,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864797261] [2021-08-25 23:56:43,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864797261] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 23:56:43,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 23:56:43,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 23:56:43,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010469301] [2021-08-25 23:56:43,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-25 23:56:43,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 23:56:43,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-25 23:56:43,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 23:56:43,818 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-08-25 23:56:43,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 23:56:43,826 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-08-25 23:56:43,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-25 23:56:43,827 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-08-25 23:56:43,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 23:56:43,831 INFO L225 Difference]: With dead ends: 19 [2021-08-25 23:56:43,831 INFO L226 Difference]: Without dead ends: 7 [2021-08-25 23:56:43,833 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 23:56:43,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-08-25 23:56:43,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-25 23:56:43,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2021-08-25 23:56:43,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-08-25 23:56:43,855 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-08-25 23:56:43,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 23:56:43,856 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-08-25 23:56:43,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-08-25 23:56:43,856 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-08-25 23:56:43,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-25 23:56:43,857 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 23:56:43,857 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-25 23:56:43,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 23:56:43,858 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 23:56:43,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 23:56:43,862 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-08-25 23:56:43,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 23:56:43,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251009173] [2021-08-25 23:56:43,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 23:56:43,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 23:56:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 23:56:43,892 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-25 23:56:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 23:56:43,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-25 23:56:43,921 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-25 23:56:43,922 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 23:56:43,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 23:56:43,926 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 23:56:43,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 11:56:43 BoogieIcfgContainer [2021-08-25 23:56:43,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 23:56:43,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 23:56:43,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 23:56:43,944 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 23:56:43,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:56:43" (3/4) ... [2021-08-25 23:56:43,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-25 23:56:43,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 23:56:43,951 INFO L168 Benchmark]: Toolchain (without parser) took 1055.94 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.5 MB in the beginning and 38.3 MB in the end (delta: -15.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:56:43,951 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.5 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:56:43,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.02 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.3 MB in the beginning and 44.1 MB in the end (delta: -21.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-08-25 23:56:43,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.09 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 42.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:56:43,957 INFO L168 Benchmark]: Boogie Preprocessor took 24.71 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 41.8 MB in the end (delta: 916.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:56:43,958 INFO L168 Benchmark]: RCFGBuilder took 286.09 ms. Allocated memory is still 60.8 MB. Free memory was 41.6 MB in the beginning and 31.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 23:56:43,958 INFO L168 Benchmark]: TraceAbstraction took 385.90 ms. Allocated memory is still 60.8 MB. Free memory was 44.2 MB in the beginning and 38.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-08-25 23:56:43,959 INFO L168 Benchmark]: Witness Printer took 5.75 ms. Allocated memory is still 60.8 MB. Free memory was 38.6 MB in the beginning and 38.3 MB in the end (delta: 309.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:56:43,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 46.1 MB. Free memory was 28.6 MB in the beginning and 28.5 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.02 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.3 MB in the beginning and 44.1 MB in the end (delta: -21.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.09 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 42.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.71 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 41.8 MB in the end (delta: 916.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 286.09 ms. Allocated memory is still 60.8 MB. Free memory was 41.6 MB in the beginning and 31.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 385.90 ms. Allocated memory is still 60.8 MB. Free memory was 44.2 MB in the beginning and 38.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.75 ms. Allocated memory is still 60.8 MB. Free memory was 38.6 MB in the beginning and 38.3 MB in the end (delta: 309.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 28]: 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 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.5f && result >= -1.5f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 299.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 17.0ms, AutomataDifference: 27.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 14.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.1ms SsaConstructionTime, 37.9ms SatisfiabilityAnalysisTime, 30.4ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2021-08-25 23:56:43,991 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-25 23:56:45,605 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-25 23:56:45,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 23:56:45,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 23:56:45,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 23:56:45,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 23:56:45,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 23:56:45,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 23:56:45,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 23:56:45,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 23:56:45,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 23:56:45,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 23:56:45,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 23:56:45,687 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-25 23:56:45,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 23:56:45,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 23:56:45,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 23:56:45,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 23:56:45,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 23:56:45,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 23:56:45,726 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 23:56:45,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 23:56:45,727 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 23:56:45,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 23:56:45,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 23:56:45,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 23:56:45,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 23:56:45,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 23:56:45,728 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-25 23:56:45,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-25 23:56:45,729 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 23:56:45,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 23:56:45,729 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 23:56:45,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 23:56:45,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 23:56:45,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 23:56:45,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 23:56:45,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 23:56:45,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 23:56:45,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 23:56:45,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 23:56:45,730 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-25 23:56:45,731 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-25 23:56:45,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 23:56:45,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 23:56:45,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-25 23:56:45,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11a173a69560d75c2eb39d6ac1ff4cdd28ef28d2 [2021-08-25 23:56:46,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 23:56:46,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 23:56:46,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 23:56:46,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 23:56:46,050 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 23:56:46,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_7.i [2021-08-25 23:56:46,106 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92db893f1/9aeb3a9a78b543bdbf5cee13089d8c11/FLAGc83f918cd [2021-08-25 23:56:46,447 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 23:56:46,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_7.i [2021-08-25 23:56:46,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92db893f1/9aeb3a9a78b543bdbf5cee13089d8c11/FLAGc83f918cd [2021-08-25 23:56:46,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92db893f1/9aeb3a9a78b543bdbf5cee13089d8c11 [2021-08-25 23:56:46,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 23:56:46,863 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 23:56:46,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 23:56:46,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 23:56:46,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 23:56:46,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 11:56:46" (1/1) ... [2021-08-25 23:56:46,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be70d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:46, skipping insertion in model container [2021-08-25 23:56:46,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 11:56:46" (1/1) ... [2021-08-25 23:56:46,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 23:56:46,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 23:56:46,981 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/sine_7.i[1143,1156] [2021-08-25 23:56:46,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 23:56:47,003 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 23:56:47,019 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/sine_7.i[1143,1156] [2021-08-25 23:56:47,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 23:56:47,050 INFO L208 MainTranslator]: Completed translation [2021-08-25 23:56:47,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47 WrapperNode [2021-08-25 23:56:47,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 23:56:47,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 23:56:47,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 23:56:47,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 23:56:47,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 23:56:47,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 23:56:47,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 23:56:47,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 23:56:47,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 23:56:47,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 23:56:47,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 23:56:47,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 23:56:47,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (1/1) ... [2021-08-25 23:56:47,143 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 23:56:47,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 23:56:47,191 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) [2021-08-25 23:56:47,205 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 [2021-08-25 23:56:47,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-25 23:56:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 23:56:47,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 23:56:47,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 23:56:49,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 23:56:49,662 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-25 23:56:49,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:56:49 BoogieIcfgContainer [2021-08-25 23:56:49,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 23:56:49,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 23:56:49,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 23:56:49,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 23:56:49,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 11:56:46" (1/3) ... [2021-08-25 23:56:49,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2294106e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 11:56:49, skipping insertion in model container [2021-08-25 23:56:49,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:56:47" (2/3) ... [2021-08-25 23:56:49,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2294106e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 11:56:49, skipping insertion in model container [2021-08-25 23:56:49,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:56:49" (3/3) ... [2021-08-25 23:56:49,675 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_7.i [2021-08-25 23:56:49,679 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 23:56:49,679 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 23:56:49,712 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 23:56:49,716 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 [2021-08-25 23:56:49,716 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 23:56:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-08-25 23:56:49,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-25 23:56:49,726 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 23:56:49,731 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-25 23:56:49,732 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 23:56:49,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 23:56:49,735 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-08-25 23:56:49,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-25 23:56:49,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793415502] [2021-08-25 23:56:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 23:56:49,744 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-25 23:56:49,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-25 23:56:49,746 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) [2021-08-25 23:56:49,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-25 23:56:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 23:56:50,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-25 23:56:50,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 23:56:50,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 23:56:50,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-25 23:56:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-25 23:56:50,379 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-25 23:56:50,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793415502] [2021-08-25 23:56:50,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793415502] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-25 23:56:50,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-25 23:56:50,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-25 23:56:50,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583635315] [2021-08-25 23:56:50,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-25 23:56:50,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-25 23:56:50,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-25 23:56:50,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 23:56:50,395 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-08-25 23:56:50,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 23:56:50,404 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-08-25 23:56:50,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-25 23:56:50,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-08-25 23:56:50,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 23:56:50,411 INFO L225 Difference]: With dead ends: 19 [2021-08-25 23:56:50,411 INFO L226 Difference]: Without dead ends: 7 [2021-08-25 23:56:50,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 23:56:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-08-25 23:56:50,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-25 23:56:50,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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) [2021-08-25 23:56:50,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-08-25 23:56:50,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-08-25 23:56:50,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 23:56:50,430 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-08-25 23:56:50,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-08-25 23:56:50,430 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-08-25 23:56:50,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-25 23:56:50,431 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 23:56:50,431 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-25 23:56:50,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-25 23:56:50,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-25 23:56:50,648 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 23:56:50,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 23:56:50,650 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-08-25 23:56:50,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-25 23:56:50,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485556031] [2021-08-25 23:56:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 23:56:50,651 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-25 23:56:50,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-25 23:56:50,653 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) [2021-08-25 23:56:50,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-25 23:59:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 23:59:47,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-25 23:59:47,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 00:00:04,321 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (and (= c_ULTIMATE.start_main_~result~0 (let ((.cse0 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ULTIMATE.start_main_~IN~0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse0 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse1 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (fp.gt ULTIMATE.start_main_~IN~0 (fp.neg .cse2)) (fp.lt ULTIMATE.start_main_~IN~0 .cse2)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-08-26 00:00:59,740 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 157079632679.0 100000000000.0)))) (and (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (let ((.cse1 (let ((.cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~IN~0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (let ((.cse4 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~IN~0 (fp.div roundNearestTiesToEven .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 6.0))) (fp.div roundNearestTiesToEven .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 120.0))) (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) roundNearestTiesToEven 5040.0)))))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2))))) (fp.gt ULTIMATE.start_main_~IN~0 (fp.neg .cse0))))) is different from false [2021-08-26 00:01:01,861 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 157079632679.0 100000000000.0)))) (and (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (let ((.cse1 (let ((.cse3 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ULTIMATE.start_main_~IN~0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (let ((.cse4 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start_main_~IN~0 (fp.div roundNearestTiesToEven .cse3 ((_ to_fp 8 24) roundNearestTiesToEven 6.0))) (fp.div roundNearestTiesToEven .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 120.0))) (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) roundNearestTiesToEven 5040.0)))))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (or (not (fp.leq .cse1 .cse2)) (not (fp.geq .cse1 (fp.neg .cse2))))) (fp.gt ULTIMATE.start_main_~IN~0 (fp.neg .cse0))))) is different from true [2021-08-26 00:01:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:01:01,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 00:01:07,253 WARN L207 SmtUtils]: Spent 5.24 s on a formula simplification that was a NOOP. DAG size: 23 [2021-08-26 00:01:12,437 WARN L207 SmtUtils]: Spent 5.18 s on a formula simplification that was a NOOP. DAG size: 24 [2021-08-26 00:01:14,724 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from false [2021-08-26 00:01:17,021 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1)))) is different from true [2021-08-26 00:01:22,246 WARN L207 SmtUtils]: Spent 5.19 s on a formula simplification that was a NOOP. DAG size: 3 [2021-08-26 00:01:27,400 WARN L207 SmtUtils]: Spent 5.15 s on a formula simplification that was a NOOP. DAG size: 23 [2021-08-26 00:01:32,518 WARN L207 SmtUtils]: Spent 5.12 s on a formula simplification that was a NOOP. DAG size: 24 [2021-08-26 00:01:34,803 WARN L838 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (let ((.cse0 (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1))))) is different from false [2021-08-26 00:01:37,123 WARN L860 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (let ((.cse0 (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.geq .cse0 (fp.neg .cse1))))) is different from true [2021-08-26 00:01:46,973 WARN L207 SmtUtils]: Spent 5.20 s on a formula simplification that was a NOOP. DAG size: 6 [2021-08-26 00:01:52,211 WARN L207 SmtUtils]: Spent 5.24 s on a formula simplification that was a NOOP. DAG size: 7 [2021-08-26 00:01:57,410 WARN L207 SmtUtils]: Spent 5.19 s on a formula simplification that was a NOOP. DAG size: 6 [2021-08-26 00:02:07,180 WARN L207 SmtUtils]: Spent 5.18 s on a formula simplification that was a NOOP. DAG size: 7 [2021-08-26 00:02:12,413 WARN L207 SmtUtils]: Spent 5.23 s on a formula simplification that was a NOOP. DAG size: 6 [2021-08-26 00:02:17,615 WARN L207 SmtUtils]: Spent 5.20 s on a formula simplification that was a NOOP. DAG size: 24 [2021-08-26 00:02:22,810 WARN L207 SmtUtils]: Spent 5.19 s on a formula simplification that was a NOOP. DAG size: 23 [2021-08-26 00:02:28,019 WARN L207 SmtUtils]: Spent 5.21 s on a formula simplification that was a NOOP. DAG size: 7 [2021-08-26 00:02:30,223 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~IN~0_5 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (or (not (fp.lt v_ULTIMATE.start_main_~IN~0_5 .cse0)) (let ((.cse1 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2))) (not (fp.gt v_ULTIMATE.start_main_~IN~0_5 (fp.neg .cse0)))))) is different from false [2021-08-26 00:02:32,518 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~IN~0_5 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (or (not (fp.lt v_ULTIMATE.start_main_~IN~0_5 .cse0)) (let ((.cse1 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2))) (not (fp.gt v_ULTIMATE.start_main_~IN~0_5 (fp.neg .cse0)))))) is different from true [2021-08-26 00:02:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 00:02:32,518 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 00:02:32,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485556031] [2021-08-26 00:02:32,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485556031] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 00:02:32,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 00:02:32,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2021-08-26 00:02:32,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978674021] [2021-08-26 00:02:32,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-26 00:02:32,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 00:02:32,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-26 00:02:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=20, Unknown=9, NotChecked=60, Total=110 [2021-08-26 00:02:32,521 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-08-26 00:02:34,692 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~IN~0_5 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (or (not (fp.lt v_ULTIMATE.start_main_~IN~0_5 .cse0)) (let ((.cse1 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2))) (not (fp.gt v_ULTIMATE.start_main_~IN~0_5 (fp.neg .cse0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-08-26 00:02:36,977 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~IN~0_5 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (or (not (fp.lt v_ULTIMATE.start_main_~IN~0_5 .cse0)) (let ((.cse1 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode v_ULTIMATE.start_main_~IN~0_5 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 v_ULTIMATE.start_main_~IN~0_5) v_ULTIMATE.start_main_~IN~0_5) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq .cse1 (fp.neg .cse2)) (fp.leq .cse1 .cse2))) (not (fp.gt v_ULTIMATE.start_main_~IN~0_5 (fp.neg .cse0)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-08-26 00:02:39,171 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (let ((.cse0 (fp.gt c_ULTIMATE.start_main_~IN~0 (fp.neg .cse3))) (.cse1 (fp.lt c_ULTIMATE.start_main_~IN~0 .cse3))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse0 .cse1) (and .cse2 (or (not .cse0) (not .cse1)))))) (= c_currentRoundingMode roundNearestTiesToEven) (or .cse2 (let ((.cse4 (let ((.cse6 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse7 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse6 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse6 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse7 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse7 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse4 .cse5) (fp.geq .cse4 (fp.neg .cse5))))))) is different from false [2021-08-26 00:02:41,455 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (let ((.cse0 (fp.gt c_ULTIMATE.start_main_~IN~0 (fp.neg .cse3))) (.cse1 (fp.lt c_ULTIMATE.start_main_~IN~0 .cse3))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse0 .cse1) (and .cse2 (or (not .cse0) (not .cse1)))))) (= c_currentRoundingMode roundNearestTiesToEven) (or .cse2 (let ((.cse4 (let ((.cse6 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse7 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse6 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse6 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse7 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse7 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse4 .cse5) (fp.geq .cse4 (fp.neg .cse5))))))) is different from true [2021-08-26 00:02:43,646 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0))) (.cse0 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.gt c_ULTIMATE.start_main_~IN~0 (fp.neg .cse2)) (fp.lt c_ULTIMATE.start_main_~IN~0 .cse2) (fp.geq .cse0 (fp.neg .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-08-26 00:02:45,937 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0))) (.cse0 (let ((.cse3 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (let ((.cse4 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse3 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse4 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse4 c_ULTIMATE.start_main_~IN~0) c_ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.leq .cse0 .cse1) (fp.gt c_ULTIMATE.start_main_~IN~0 (fp.neg .cse2)) (fp.lt c_ULTIMATE.start_main_~IN~0 .cse2) (fp.geq .cse0 (fp.neg .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-08-26 00:02:48,135 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)))) (and (fp.geq c_ULTIMATE.start_main_~result~0 (fp.neg .cse0)) (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 157079632679.0 100000000000.0)))) (and (= c_ULTIMATE.start_main_~result~0 (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ULTIMATE.start_main_~IN~0 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start_main_~IN~0 (fp.div c_currentRoundingMode .cse1 ((_ to_fp 8 24) c_currentRoundingMode 6.0))) (fp.div c_currentRoundingMode .cse2 ((_ to_fp 8 24) c_currentRoundingMode 120.0))) (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ((_ to_fp 8 24) c_currentRoundingMode 5040.0)))))) (fp.gt ULTIMATE.start_main_~IN~0 (fp.neg .cse3)) (fp.lt ULTIMATE.start_main_~IN~0 .cse3)))) (fp.leq c_ULTIMATE.start_main_~result~0 .cse0) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2021-08-26 00:02:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 00:02:48,151 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-08-26 00:02:48,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 00:02:48,151 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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 6 [2021-08-26 00:02:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 00:02:48,151 INFO L225 Difference]: With dead ends: 7 [2021-08-26 00:02:48,151 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 00:02:48,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36143.6ms TimeCoverageRelationStatistics Valid=29, Invalid=21, Unknown=16, NotChecked=144, Total=210 [2021-08-26 00:02:48,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 00:02:48,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 00:02:48,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-08-26 00:02:48,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 00:02:48,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-08-26 00:02:48,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 00:02:48,153 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 00:02:48,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 10 states have internal predecessors, (12), 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) [2021-08-26 00:02:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 00:02:48,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 00:02:48,155 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:02:48,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 00:02:48,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:02:48,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 00:02:48,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 00:02:48,380 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 00:02:48,380 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 00:02:48,380 INFO L860 garLoopResultBuilder]: At program point L30(lines 18 31) the Hoare annotation is: true [2021-08-26 00:02:48,380 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 00:02:48,380 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 00:02:48,380 INFO L857 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2021-08-26 00:02:48,381 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 28) no Hoare annotation was computed. [2021-08-26 00:02:48,381 INFO L857 garLoopResultBuilder]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2021-08-26 00:02:48,381 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 28) no Hoare annotation was computed. [2021-08-26 00:02:48,381 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-08-26 00:02:48,381 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2021-08-26 00:02:48,384 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:02:48,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:02:48 BoogieIcfgContainer [2021-08-26 00:02:48,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:02:48,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:02:48,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:02:48,388 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:02:48,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:56:49" (3/4) ... [2021-08-26 00:02:48,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 00:02:48,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-26 00:02:48,397 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-26 00:02:48,397 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:02:48,397 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 00:02:48,415 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:02:48,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:02:48,416 INFO L168 Benchmark]: Toolchain (without parser) took 361552.84 ms. Allocated memory was 73.4 MB in the beginning and 100.7 MB in the end (delta: 27.3 MB). Free memory was 55.7 MB in the beginning and 67.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-08-26 00:02:48,416 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 73.4 MB. Free memory was 54.9 MB in the beginning and 54.8 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:02:48,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 185.72 ms. Allocated memory is still 73.4 MB. Free memory was 55.4 MB in the beginning and 56.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-08-26 00:02:48,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.38 ms. Allocated memory is still 73.4 MB. Free memory was 56.9 MB in the beginning and 55.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:02:48,417 INFO L168 Benchmark]: Boogie Preprocessor took 36.57 ms. Allocated memory is still 73.4 MB. Free memory was 55.2 MB in the beginning and 54.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:02:48,417 INFO L168 Benchmark]: RCFGBuilder took 2525.19 ms. Allocated memory is still 73.4 MB. Free memory was 54.1 MB in the beginning and 43.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:02:48,418 INFO L168 Benchmark]: TraceAbstraction took 358723.62 ms. Allocated memory was 73.4 MB in the beginning and 100.7 MB in the end (delta: 27.3 MB). Free memory was 42.4 MB in the beginning and 70.5 MB in the end (delta: -28.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:02:48,418 INFO L168 Benchmark]: Witness Printer took 27.28 ms. Allocated memory is still 100.7 MB. Free memory was 70.5 MB in the beginning and 67.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:02:48,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 73.4 MB. Free memory was 54.9 MB in the beginning and 54.8 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 185.72 ms. Allocated memory is still 73.4 MB. Free memory was 55.4 MB in the beginning and 56.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.38 ms. Allocated memory is still 73.4 MB. Free memory was 56.9 MB in the beginning and 55.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.57 ms. Allocated memory is still 73.4 MB. Free memory was 55.2 MB in the beginning and 54.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2525.19 ms. Allocated memory is still 73.4 MB. Free memory was 54.1 MB in the beginning and 43.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 358723.62 ms. Allocated memory was 73.4 MB in the beginning and 100.7 MB in the end (delta: 27.3 MB). Free memory was 42.4 MB in the beginning and 70.5 MB in the end (delta: -28.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 27.28 ms. Allocated memory is still 100.7 MB. Free memory was 70.5 MB in the beginning and 67.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 358672.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 5.3ms, AutomataDifference: 15660.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 23.2ms, InitialAbstractionConstructionTime: 4.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36143.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 18.9ms HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 26.8ms SsaConstructionTime, 177488.1ms SatisfiabilityAnalysisTime, 164922.5ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 3 QuantifiedInterpolants, 721 SizeOfPredicates, 6 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-26 00:02:48,643 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-08-26 00:02:48,713 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 137 Received shutdown request...