./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/sine_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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_2.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 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c ................................................................................................................................................................................................................................................................................... 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_2.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 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c ...................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 22:47:37,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:47:37,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:47:37,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:47:37,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:47:37,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:47:37,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:47:37,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:47:37,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:47:37,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:47:37,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:47:37,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:47:37,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:47:37,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:47:37,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:47:37,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:47:37,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:47:37,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:47:37,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:47:37,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:47:37,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:47:37,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:47:37,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:47:37,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:47:37,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:47:37,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:47:37,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:47:37,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:47:37,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:47:37,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:47:37,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:47:37,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:47:37,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:47:37,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:47:37,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:47:37,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:47:37,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:47:37,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:47:37,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:47:37,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:47:37,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:47:37,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 22:47:37,890 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:47:37,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:47:37,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:47:37,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:47:37,892 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:47:37,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:47:37,892 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:47:37,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 22:47:37,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:47:37,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:47:37,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:47:37,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:47:37,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:47:37,893 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:47:37,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:47:37,894 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:47:37,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:47:37,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:47:37,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:47:37,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:47:37,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:47:37,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:47:37,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:47:37,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:47:37,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 22:47:37,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 22:47:37,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:47:37,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:47:37,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c [2021-07-04 22:47:38,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:47:38,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:47:38,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:47:38,142 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:47:38,143 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:47:38,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-07-04 22:47:38,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2072ebb47/8df55d23db4c4ccbaacdec4a12e367f8/FLAGbea2838d2 [2021-07-04 22:47:38,557 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:47:38,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-07-04 22:47:38,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2072ebb47/8df55d23db4c4ccbaacdec4a12e367f8/FLAGbea2838d2 [2021-07-04 22:47:38,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2072ebb47/8df55d23db4c4ccbaacdec4a12e367f8 [2021-07-04 22:47:38,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:47:38,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:47:38,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:47:38,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:47:38,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:47:38,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6459c06a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38, skipping insertion in model container [2021-07-04 22:47:38,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:47:38,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:47:38,709 WARN L224 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_2.i[1143,1156] [2021-07-04 22:47:38,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:47:38,722 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:47:38,763 WARN L224 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_2.i[1143,1156] [2021-07-04 22:47:38,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:47:38,784 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:47:38,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38 WrapperNode [2021-07-04 22:47:38,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:47:38,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:47:38,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:47:38,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:47:38,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:47:38,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:47:38,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:47:38,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:47:38,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:47:38,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:47:38,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:47:38,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:47:38,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (1/1) ... [2021-07-04 22:47:38,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:47:38,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:47:38,862 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) [2021-07-04 22:47:38,880 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 [2021-07-04 22:47:38,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 22:47:38,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:47:38,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:47:38,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:47:39,050 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:47:39,050 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-04 22:47:39,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:47:39 BoogieIcfgContainer [2021-07-04 22:47:39,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:47:39,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:47:39,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:47:39,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:47:39,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:47:38" (1/3) ... [2021-07-04 22:47:39,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236e9a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:47:39, skipping insertion in model container [2021-07-04 22:47:39,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:38" (2/3) ... [2021-07-04 22:47:39,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236e9a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:47:39, skipping insertion in model container [2021-07-04 22:47:39,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:47:39" (3/3) ... [2021-07-04 22:47:39,064 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2021-07-04 22:47:39,069 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:47:39,069 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 22:47:39,108 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:47:39,114 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:47:39,115 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:47:39,124 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) [2021-07-04 22:47:39,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-04 22:47:39,127 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:47:39,127 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-04 22:47:39,128 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:47:39,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:47:39,132 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-07-04 22:47:39,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 22:47:39,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032661391] [2021-07-04 22:47:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:47:39,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 22:47:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:47:39,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:39,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:39,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:39,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:47:39,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 22:47:39,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032661391] [2021-07-04 22:47:39,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032661391] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 22:47:39,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:47:39,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-04 22:47:39,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530725801] [2021-07-04 22:47:39,239 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-04 22:47:39,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 22:47:39,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-04 22:47:39,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 22:47:39,254 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) [2021-07-04 22:47:39,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:47:39,262 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-07-04 22:47:39,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-04 22:47:39,263 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 [2021-07-04 22:47:39,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:47:39,267 INFO L225 Difference]: With dead ends: 19 [2021-07-04 22:47:39,267 INFO L226 Difference]: Without dead ends: 7 [2021-07-04 22:47:39,269 INFO L795 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 [2021-07-04 22:47:39,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-07-04 22:47:39,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-07-04 22:47:39,284 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) [2021-07-04 22:47:39,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-07-04 22:47:39,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-07-04 22:47:39,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:47:39,286 INFO L442 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-07-04 22:47:39,286 INFO L443 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) [2021-07-04 22:47:39,286 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-07-04 22:47:39,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-04 22:47:39,286 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:47:39,286 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-04 22:47:39,287 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 22:47:39,287 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:47:39,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:47:39,287 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-07-04 22:47:39,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 22:47:39,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935937400] [2021-07-04 22:47:39,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:47:39,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 22:47:39,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:47:39,305 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:47:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:47:39,320 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:47:39,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 22:47:39,335 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 22:47:39,337 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-04 22:47:39,338 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:47:39,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:47:39 BoogieIcfgContainer [2021-07-04 22:47:39,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:47:39,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:47:39,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:47:39,356 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:47:39,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:47:39" (3/4) ... [2021-07-04 22:47:39,359 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-04 22:47:39,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:47:39,360 INFO L168 Benchmark]: Toolchain (without parser) took 775.96 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.1 MB in the beginning and 51.3 MB in the end (delta: -16.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:47:39,361 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:47:39,362 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.24 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.9 MB in the end (delta: -5.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:47:39,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.83 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 38.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:47:39,366 INFO L168 Benchmark]: Boogie Preprocessor took 27.88 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 37.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:47:39,367 INFO L168 Benchmark]: RCFGBuilder took 214.62 ms. Allocated memory is still 56.6 MB. Free memory was 37.4 MB in the beginning and 26.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 22:47:39,367 INFO L168 Benchmark]: TraceAbstraction took 295.73 ms. Allocated memory is still 71.3 MB. Free memory was 54.6 MB in the beginning and 51.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:47:39,368 INFO L168 Benchmark]: Witness Printer took 3.78 ms. Allocated memory is still 71.3 MB. Free memory was 51.8 MB in the beginning and 51.3 MB in the end (delta: 440.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:47:39,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 200.24 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.9 MB in the end (delta: -5.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.83 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 38.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.88 ms. Allocated memory is still 56.6 MB. Free memory was 38.5 MB in the beginning and 37.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 214.62 ms. Allocated memory is still 56.6 MB. Free memory was 37.4 MB in the beginning and 26.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 295.73 ms. Allocated memory is still 71.3 MB. Free memory was 54.6 MB in the beginning and 51.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.78 ms. Allocated memory is still 71.3 MB. Free memory was 51.8 MB in the beginning and 51.3 MB in the end (delta: 440.8 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 <= 1.0f && result >= -1.0f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 234.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 5.5ms, AutomataDifference: 29.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.8ms, 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: 7.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.4ms SsaConstructionTime, 36.8ms SatisfiabilityAnalysisTime, 23.4ms 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 [2021-07-04 22:47:39,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 22:47:40,855 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-07-04 22:47:40,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:47:40,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:47:40,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:47:40,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:47:40,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:47:40,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:47:40,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:47:40,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:47:40,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:47:40,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:47:40,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:47:40,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-04 22:47:40,947 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:47:40,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:47:40,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:47:40,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:47:40,949 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:47:40,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:47:40,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:47:40,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:47:40,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:47:40,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:47:40,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:47:40,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:47:40,950 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-04 22:47:40,950 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-04 22:47:40,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:47:40,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:47:40,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:47:40,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:47:40,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:47:40,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:47:40,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:47:40,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:47:40,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:47:40,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:47:40,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:47:40,952 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-04 22:47:40,952 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-04 22:47:40,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:47:40,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:47:40,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-04 22:47:40,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c [2021-07-04 22:47:41,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:47:41,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:47:41,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:47:41,197 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:47:41,197 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:47:41,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-07-04 22:47:41,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908ac4569/9386dd5465394a7bbb57cb2bb4a7a958/FLAGa67f9374f [2021-07-04 22:47:41,611 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:47:41,612 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-07-04 22:47:41,615 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908ac4569/9386dd5465394a7bbb57cb2bb4a7a958/FLAGa67f9374f [2021-07-04 22:47:41,628 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/908ac4569/9386dd5465394a7bbb57cb2bb4a7a958 [2021-07-04 22:47:41,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:47:41,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:47:41,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:47:41,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:47:41,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:47:41,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@613e45d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41, skipping insertion in model container [2021-07-04 22:47:41,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:47:41,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:47:41,773 WARN L224 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_2.i[1143,1156] [2021-07-04 22:47:41,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:47:41,785 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:47:41,830 WARN L224 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_2.i[1143,1156] [2021-07-04 22:47:41,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:47:41,848 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:47:41,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41 WrapperNode [2021-07-04 22:47:41,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:47:41,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:47:41,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:47:41,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:47:41,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:47:41,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:47:41,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:47:41,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:47:41,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:47:41,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:47:41,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:47:41,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:47:41,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (1/1) ... [2021-07-04 22:47:41,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:47:41,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:47:41,933 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) [2021-07-04 22:47:41,947 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 [2021-07-04 22:47:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-04 22:47:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:47:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:47:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:47:44,390 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:47:44,391 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-04 22:47:44,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:47:44 BoogieIcfgContainer [2021-07-04 22:47:44,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:47:44,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:47:44,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:47:44,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:47:44,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:47:41" (1/3) ... [2021-07-04 22:47:44,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5a66f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:47:44, skipping insertion in model container [2021-07-04 22:47:44,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:47:41" (2/3) ... [2021-07-04 22:47:44,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f5a66f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:47:44, skipping insertion in model container [2021-07-04 22:47:44,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:47:44" (3/3) ... [2021-07-04 22:47:44,397 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2021-07-04 22:47:44,401 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:47:44,401 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 22:47:44,436 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:47:44,440 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:47:44,441 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:47:44,448 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) [2021-07-04 22:47:44,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-04 22:47:44,451 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:47:44,451 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-04 22:47:44,452 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:47:44,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:47:44,456 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-07-04 22:47:44,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:47:44,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955195445] [2021-07-04 22:47:44,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:47:44,464 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:47:44,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:47:44,470 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) [2021-07-04 22:47:44,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-07-04 22:47:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:47:44,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-07-04 22:47:44,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:47:44,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:47:44,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:47:44,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:47:44,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:47:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:47:44,960 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:47:44,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955195445] [2021-07-04 22:47:44,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1955195445] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:47:44,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:47:44,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-07-04 22:47:44,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559381405] [2021-07-04 22:47:44,965 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-04 22:47:44,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:47:44,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-04 22:47:44,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 22:47:44,974 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) [2021-07-04 22:47:44,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:47:44,982 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-07-04 22:47:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-04 22:47:44,983 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 [2021-07-04 22:47:44,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:47:44,987 INFO L225 Difference]: With dead ends: 19 [2021-07-04 22:47:44,987 INFO L226 Difference]: Without dead ends: 7 [2021-07-04 22:47:44,989 INFO L795 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 [2021-07-04 22:47:44,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-07-04 22:47:45,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-07-04 22:47:45,004 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) [2021-07-04 22:47:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-07-04 22:47:45,005 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-07-04 22:47:45,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:47:45,006 INFO L442 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-07-04 22:47:45,006 INFO L443 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) [2021-07-04 22:47:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-07-04 22:47:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-07-04 22:47:45,006 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:47:45,007 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-07-04 22:47:45,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-07-04 22:47:45,219 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:47:45,220 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:47:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:47:45,220 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-07-04 22:47:45,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:47:45,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135246588] [2021-07-04 22:47:45,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:47:45,221 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:47:45,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:47:45,222 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) [2021-07-04 22:47:45,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-07-04 22:51:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:51:00,127 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:51:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:51:00,782 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:51:00,830 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-07-04 22:51:00,830 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 22:51:00,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-07-04 22:51:01,032 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:51:01,033 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:51:01,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:51:01 BoogieIcfgContainer [2021-07-04 22:51:01,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:51:01,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:51:01,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:51:01,049 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:51:01,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:47:44" (3/4) ... [2021-07-04 22:51:01,050 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-04 22:51:01,078 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 22:51:01,078 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:51:01,080 INFO L168 Benchmark]: Toolchain (without parser) took 199447.10 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 44.7 MB in the beginning and 59.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2021-07-04 22:51:01,081 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:51:01,081 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.31 ms. Allocated memory is still 62.9 MB. Free memory was 44.5 MB in the beginning and 46.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 22:51:01,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.21 ms. Allocated memory is still 62.9 MB. Free memory was 46.5 MB in the beginning and 45.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:51:01,081 INFO L168 Benchmark]: Boogie Preprocessor took 32.15 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 44.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:51:01,085 INFO L168 Benchmark]: RCFGBuilder took 2477.73 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 32.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:51:01,086 INFO L168 Benchmark]: TraceAbstraction took 196655.30 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 32.3 MB in the beginning and 61.3 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:51:01,086 INFO L168 Benchmark]: Witness Printer took 29.58 ms. Allocated memory is still 81.8 MB. Free memory was 61.3 MB in the beginning and 59.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:51:01,088 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 216.31 ms. Allocated memory is still 62.9 MB. Free memory was 44.5 MB in the beginning and 46.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.21 ms. Allocated memory is still 62.9 MB. Free memory was 46.5 MB in the beginning and 45.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.15 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 44.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2477.73 ms. Allocated memory is still 62.9 MB. Free memory was 44.0 MB in the beginning and 32.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 196655.30 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 32.3 MB in the beginning and 61.3 MB in the end (delta: -29.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 29.58 ms. Allocated memory is still 81.8 MB. Free memory was 61.3 MB in the beginning and 59.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 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 - CounterExampleResult [Line: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a 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 <= 1.0f && result >= -1.0f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 196600.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 5.0ms, AutomataDifference: 23.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.2ms, 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, 10 GetRequests, 10 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: 8.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.9ms SsaConstructionTime, 195251.0ms SatisfiabilityAnalysisTime, 85.2ms InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-07-04 22:51:01,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...