./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cdfpl/sine_1.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_1.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 853868a88f6c6643cd6d627e66ad7d81e22e5804 ................................................................................................................................................................................................................................................................................ 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_1.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 853868a88f6c6643cd6d627e66ad7d81e22e5804 .............................................................................................................................................................................................................................................................................................. 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-dev-20ed64e [2021-08-25 23:55:19,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-25 23:55:19,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-25 23:55:19,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-25 23:55:19,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-25 23:55:19,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-25 23:55:19,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-25 23:55:19,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-25 23:55:19,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-25 23:55:19,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-25 23:55:19,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-25 23:55:19,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-25 23:55:19,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-25 23:55:19,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-25 23:55:19,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-25 23:55:19,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-25 23:55:19,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-25 23:55:19,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-25 23:55:19,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-25 23:55:19,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-25 23:55:19,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-25 23:55:19,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-25 23:55:19,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-25 23:55:19,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-25 23:55:19,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-25 23:55:19,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-25 23:55:19,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-25 23:55:19,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-25 23:55:19,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-25 23:55:19,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-25 23:55:19,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 23:55:19,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 23:55:19,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 23:55:19,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 23:55:19,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 23:55:19,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 23:55:19,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 23:55:19,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 23:55:19,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 23:55:19,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 23:55:19,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 23:55:19,719 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-25 23:55:19,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 23:55:19,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 23:55:19,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 23:55:19,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 23:55:19,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 23:55:19,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 23:55:19,749 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 23:55:19,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 23:55:19,750 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 23:55:19,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-25 23:55:19,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 23:55:19,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 23:55:19,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 23:55:19,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 23:55:19,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 23:55:19,751 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 23:55:19,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 23:55:19,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 23:55:19,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 23:55:19,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 23:55:19,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 23:55:19,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 23:55:19,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 23:55:19,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 23:55:19,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 23:55:19,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 23:55:19,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-25 23:55:19,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-25 23:55:19,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 23:55:19,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 23:55:19,753 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 853868a88f6c6643cd6d627e66ad7d81e22e5804 [2021-08-25 23:55:20,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 23:55:20,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 23:55:20,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 23:55:20,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 23:55:20,046 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 23:55:20,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_1.i [2021-08-25 23:55:20,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4bc8a0f4/9e85db9255b04306b3a799d67ffd2f1d/FLAGece541b59 [2021-08-25 23:55:20,459 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 23:55:20,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_1.i [2021-08-25 23:55:20,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4bc8a0f4/9e85db9255b04306b3a799d67ffd2f1d/FLAGece541b59 [2021-08-25 23:55:20,478 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4bc8a0f4/9e85db9255b04306b3a799d67ffd2f1d [2021-08-25 23:55:20,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 23:55:20,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 23:55:20,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 23:55:20,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 23:55:20,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 23:55:20,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69dadfaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20, skipping insertion in model container [2021-08-25 23:55:20,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 23:55:20,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 23:55:20,602 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_1.i[1143,1156] [2021-08-25 23:55:20,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 23:55:20,612 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 23:55:20,657 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_1.i[1143,1156] [2021-08-25 23:55:20,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 23:55:20,666 INFO L208 MainTranslator]: Completed translation [2021-08-25 23:55:20,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20 WrapperNode [2021-08-25 23:55:20,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 23:55:20,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 23:55:20,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 23:55:20,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 23:55:20,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 23:55:20,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 23:55:20,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 23:55:20,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 23:55:20,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 23:55:20,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 23:55:20,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 23:55:20,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 23:55:20,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (1/1) ... [2021-08-25 23:55:20,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 23:55:20,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 23:55:20,729 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 23:55:20,746 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 23:55:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-25 23:55:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 23:55:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 23:55:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 23:55:20,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 23:55:20,920 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-25 23:55:20,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:55:20 BoogieIcfgContainer [2021-08-25 23:55:20,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 23:55:20,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 23:55:20,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 23:55:20,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 23:55:20,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 11:55:20" (1/3) ... [2021-08-25 23:55:20,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96c7e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 11:55:20, skipping insertion in model container [2021-08-25 23:55:20,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:20" (2/3) ... [2021-08-25 23:55:20,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96c7e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 11:55:20, skipping insertion in model container [2021-08-25 23:55:20,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:55:20" (3/3) ... [2021-08-25 23:55:20,927 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_1.i [2021-08-25 23:55:20,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 23:55:20,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 23:55:20,982 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 23:55:20,986 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 23:55:21,000 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 23:55:21,025 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 23:55:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-25 23:55:21,028 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 23:55:21,029 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-25 23:55:21,029 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 23:55:21,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 23:55:21,033 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-08-25 23:55:21,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 23:55:21,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488742442] [2021-08-25 23:55:21,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 23:55:21,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 23:55:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 23:55:21,161 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 23:55:21,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-25 23:55:21,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488742442] [2021-08-25 23:55:21,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488742442] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-25 23:55:21,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-25 23:55:21,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-25 23:55:21,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035310449] [2021-08-25 23:55:21,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-25 23:55:21,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-25 23:55:21,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-25 23:55:21,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 23:55:21,188 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 23:55:21,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 23:55:21,197 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-08-25 23:55:21,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-25 23:55:21,198 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 23:55:21,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 23:55:21,203 INFO L225 Difference]: With dead ends: 19 [2021-08-25 23:55:21,203 INFO L226 Difference]: Without dead ends: 7 [2021-08-25 23:55:21,205 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 23:55:21,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-08-25 23:55:21,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-25 23:55:21,221 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 23:55:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-08-25 23:55:21,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-08-25 23:55:21,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 23:55:21,223 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-08-25 23:55:21,224 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 23:55:21,224 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-08-25 23:55:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-25 23:55:21,224 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 23:55:21,224 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-25 23:55:21,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-25 23:55:21,225 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 23:55:21,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 23:55:21,228 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-08-25 23:55:21,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-25 23:55:21,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729695700] [2021-08-25 23:55:21,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 23:55:21,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-25 23:55:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 23:55:21,254 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-25 23:55:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-25 23:55:21,292 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-25 23:55:21,292 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-25 23:55:21,293 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-25 23:55:21,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-25 23:55:21,299 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-25 23:55:21,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 11:55:21 BoogieIcfgContainer [2021-08-25 23:55:21,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-25 23:55:21,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-25 23:55:21,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-25 23:55:21,315 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-25 23:55:21,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:55:20" (3/4) ... [2021-08-25 23:55:21,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-25 23:55:21,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-25 23:55:21,320 INFO L168 Benchmark]: Toolchain (without parser) took 836.21 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.7 MB in the beginning and 37.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-08-25 23:55:21,320 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:55:21,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.52 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 44.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-25 23:55:21,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.89 ms. Allocated memory is still 60.8 MB. Free memory was 44.5 MB in the beginning and 43.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:55:21,325 INFO L168 Benchmark]: Boogie Preprocessor took 22.80 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 42.2 MB in the end (delta: 955.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:55:21,326 INFO L168 Benchmark]: RCFGBuilder took 211.84 ms. Allocated memory is still 60.8 MB. Free memory was 42.0 MB in the beginning and 31.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-25 23:55:21,327 INFO L168 Benchmark]: TraceAbstraction took 391.68 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 31.1 MB in the beginning and 37.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-08-25 23:55:21,327 INFO L168 Benchmark]: Witness Printer took 3.08 ms. Allocated memory is still 73.4 MB. Free memory was 37.5 MB in the beginning and 37.2 MB in the end (delta: 282.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-25 23:55:21,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 60.8 MB. Free memory was 43.0 MB in the beginning and 43.0 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 182.52 ms. Allocated memory is still 60.8 MB. Free memory was 39.6 MB in the beginning and 44.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 18.89 ms. Allocated memory is still 60.8 MB. Free memory was 44.5 MB in the beginning and 43.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.80 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 42.2 MB in the end (delta: 955.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 211.84 ms. Allocated memory is still 60.8 MB. Free memory was 42.0 MB in the beginning and 31.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 391.68 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 31.1 MB in the beginning and 37.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.08 ms. Allocated memory is still 73.4 MB. Free memory was 37.5 MB in the beginning and 37.2 MB in the end (delta: 282.3 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 21, overapproximation of someBinaryDOUBLEComparisonOperation 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 <= 0.99 && result >= -0.99) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 333.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 21.7ms, AutomataDifference: 29.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.2ms, 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, 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: 8.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.9ms SsaConstructionTime, 40.0ms SatisfiabilityAnalysisTime, 39.5ms 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 23:55:21,365 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-dev-20ed64e [2021-08-25 23:55:22,824 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-08-25 23:55:22,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-25 23:55:22,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-25 23:55:22,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-25 23:55:22,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-25 23:55:22,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-25 23:55:22,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-25 23:55:22,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-25 23:55:22,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-25 23:55:22,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-25 23:55:22,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-25 23:55:22,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-25 23:55:22,902 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-25 23:55:22,932 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-25 23:55:22,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-25 23:55:22,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-25 23:55:22,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-25 23:55:22,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-25 23:55:22,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-25 23:55:22,935 INFO L138 SettingsManager]: * Use SBE=true [2021-08-25 23:55:22,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-25 23:55:22,935 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-25 23:55:22,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-25 23:55:22,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-25 23:55:22,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-25 23:55:22,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-25 23:55:22,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-25 23:55:22,936 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-25 23:55:22,936 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-25 23:55:22,936 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-25 23:55:22,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-25 23:55:22,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-25 23:55:22,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-25 23:55:22,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-25 23:55:22,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-25 23:55:22,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-25 23:55:22,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 23:55:22,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-25 23:55:22,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-25 23:55:22,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-25 23:55:22,938 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-25 23:55:22,938 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-25 23:55:22,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-25 23:55:22,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-25 23:55:22,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-25 23:55:22,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 853868a88f6c6643cd6d627e66ad7d81e22e5804 [2021-08-25 23:55:23,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-25 23:55:23,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-25 23:55:23,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-25 23:55:23,172 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-25 23:55:23,172 INFO L275 PluginConnector]: CDTParser initialized [2021-08-25 23:55:23,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cdfpl/sine_1.i [2021-08-25 23:55:23,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1457b86b4/8b224ddb70934bb196dd3b95cbab15b5/FLAG94c945ef7 [2021-08-25 23:55:23,572 INFO L306 CDTParser]: Found 1 translation units. [2021-08-25 23:55:23,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cdfpl/sine_1.i [2021-08-25 23:55:23,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1457b86b4/8b224ddb70934bb196dd3b95cbab15b5/FLAG94c945ef7 [2021-08-25 23:55:24,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1457b86b4/8b224ddb70934bb196dd3b95cbab15b5 [2021-08-25 23:55:24,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-25 23:55:24,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-25 23:55:24,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-25 23:55:24,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-25 23:55:24,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-25 23:55:24,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f149d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24, skipping insertion in model container [2021-08-25 23:55:24,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-25 23:55:24,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-25 23:55:24,116 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_1.i[1143,1156] [2021-08-25 23:55:24,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 23:55:24,126 INFO L203 MainTranslator]: Completed pre-run [2021-08-25 23:55:24,135 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_1.i[1143,1156] [2021-08-25 23:55:24,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-25 23:55:24,145 INFO L208 MainTranslator]: Completed translation [2021-08-25 23:55:24,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24 WrapperNode [2021-08-25 23:55:24,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-25 23:55:24,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-25 23:55:24,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-25 23:55:24,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-25 23:55:24,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-25 23:55:24,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-25 23:55:24,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-25 23:55:24,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-25 23:55:24,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-25 23:55:24,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-25 23:55:24,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-25 23:55:24,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-25 23:55:24,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (1/1) ... [2021-08-25 23:55:24,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-25 23:55:24,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-25 23:55:24,267 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 23:55:24,293 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 23:55:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-25 23:55:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-25 23:55:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-25 23:55:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-25 23:55:26,818 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-25 23:55:26,819 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-25 23:55:26,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:55:26 BoogieIcfgContainer [2021-08-25 23:55:26,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-25 23:55:26,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-25 23:55:26,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-25 23:55:26,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-25 23:55:26,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 11:55:24" (1/3) ... [2021-08-25 23:55:26,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35258425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 11:55:26, skipping insertion in model container [2021-08-25 23:55:26,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 11:55:24" (2/3) ... [2021-08-25 23:55:26,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35258425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 11:55:26, skipping insertion in model container [2021-08-25 23:55:26,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:55:26" (3/3) ... [2021-08-25 23:55:26,829 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_1.i [2021-08-25 23:55:26,832 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-25 23:55:26,833 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-25 23:55:26,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-25 23:55:26,876 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 23:55:26,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-25 23:55:26,884 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 23:55:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-25 23:55:26,887 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 23:55:26,887 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-25 23:55:26,888 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 23:55:26,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 23:55:26,892 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-08-25 23:55:26,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-25 23:55:26,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977860428] [2021-08-25 23:55:26,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 23:55:26,900 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-25 23:55:26,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-25 23:55:26,907 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 23:55:26,908 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 23:55:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-25 23:55:27,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-25 23:55:27,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-25 23:55:27,408 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 23:55:27,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-25 23:55:27,445 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 23:55:27,445 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-25 23:55:27,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977860428] [2021-08-25 23:55:27,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977860428] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-25 23:55:27,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-25 23:55:27,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-25 23:55:27,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986985689] [2021-08-25 23:55:27,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-25 23:55:27,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-25 23:55:27,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-25 23:55:27,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-25 23:55:27,459 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 23:55:27,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-25 23:55:27,466 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-08-25 23:55:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-25 23:55:27,467 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 23:55:27,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-25 23:55:27,471 INFO L225 Difference]: With dead ends: 19 [2021-08-25 23:55:27,471 INFO L226 Difference]: Without dead ends: 7 [2021-08-25 23:55:27,473 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 23:55:27,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-08-25 23:55:27,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-25 23:55:27,488 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 23:55:27,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-08-25 23:55:27,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-08-25 23:55:27,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-25 23:55:27,489 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-08-25 23:55:27,489 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 23:55:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-08-25 23:55:27,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-25 23:55:27,490 INFO L504 BasicCegarLoop]: Found error trace [2021-08-25 23:55:27,491 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-25 23:55:27,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-25 23:55:27,701 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 23:55:27,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-25 23:55:27,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-25 23:55:27,702 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-08-25 23:55:27,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-25 23:55:27,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683995709] [2021-08-25 23:55:27,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-25 23:55:27,703 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-25 23:55:27,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-25 23:55:27,709 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 23:55:27,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 00:06:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:06:36,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:08:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:08:11,939 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-26 00:08:11,940 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:08:11,941 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:08:11,979 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 00:08:12,142 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 00:08:12,147 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:08:12,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:08:12 BoogieIcfgContainer [2021-08-26 00:08:12,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:08:12,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:08:12,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:08:12,158 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:08:12,158 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 11:55:26" (3/4) ... [2021-08-26 00:08:12,159 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 00:08:12,181 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:08:12,181 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:08:12,183 INFO L168 Benchmark]: Toolchain (without parser) took 768167.81 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 43.9 MB in the end (delta: -5.6 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:12,183 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 41.1 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:08:12,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.10 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 27.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:12,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.06 ms. Allocated memory is still 58.7 MB. Free memory was 27.7 MB in the beginning and 42.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:12,184 INFO L168 Benchmark]: Boogie Preprocessor took 35.77 ms. Allocated memory is still 58.7 MB. Free memory was 42.9 MB in the beginning and 41.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:08:12,185 INFO L168 Benchmark]: RCFGBuilder took 2581.36 ms. Allocated memory is still 58.7 MB. Free memory was 41.7 MB in the beginning and 30.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:12,185 INFO L168 Benchmark]: TraceAbstraction took 765336.13 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 30.1 MB in the beginning and 45.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2021-08-26 00:08:12,185 INFO L168 Benchmark]: Witness Printer took 23.76 ms. Allocated memory is still 73.4 MB. Free memory was 45.5 MB in the beginning and 43.9 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:08:12,188 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 58.7 MB. Free memory was 41.2 MB in the beginning and 41.1 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 130.10 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 27.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.06 ms. Allocated memory is still 58.7 MB. Free memory was 27.7 MB in the beginning and 42.9 MB in the end (delta: -15.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.77 ms. Allocated memory is still 58.7 MB. Free memory was 42.9 MB in the beginning and 41.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2581.36 ms. Allocated memory is still 58.7 MB. Free memory was 41.7 MB in the beginning and 30.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 765336.13 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 30.1 MB in the beginning and 45.5 MB in the end (delta: -15.5 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. * Witness Printer took 23.76 ms. Allocated memory is still 73.4 MB. Free memory was 45.5 MB in the beginning and 43.9 MB in the end (delta: 1.6 MB). 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 - 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 <= 0.99 && result >= -0.99) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 765275.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 5.9ms, AutomataDifference: 22.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.3ms, 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: 8.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.4ms SsaConstructionTime, 668784.3ms SatisfiabilityAnalysisTime, 128.2ms 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! [2021-08-26 00:08:12,291 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...