./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-cdfpl/sine_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54a68f41 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 ../../../trunk/examples/svcomp/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 ../../../trunk/examples/svcomp/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 0.2.1-54a68f4 [2020-12-03 17:43:40,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 17:43:40,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 17:43:40,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 17:43:40,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 17:43:40,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 17:43:40,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 17:43:40,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 17:43:40,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 17:43:40,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 17:43:40,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 17:43:40,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 17:43:40,785 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 17:43:40,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 17:43:40,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 17:43:40,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 17:43:40,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 17:43:40,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 17:43:40,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 17:43:40,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 17:43:40,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 17:43:40,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 17:43:40,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 17:43:40,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 17:43:40,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 17:43:40,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 17:43:40,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 17:43:40,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 17:43:40,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 17:43:40,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 17:43:40,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 17:43:40,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 17:43:40,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 17:43:40,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 17:43:40,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 17:43:40,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 17:43:40,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 17:43:40,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 17:43:40,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 17:43:40,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 17:43:40,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 17:43:40,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-03 17:43:40,872 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 17:43:40,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 17:43:40,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 17:43:40,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 17:43:40,875 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 17:43:40,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 17:43:40,875 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 17:43:40,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 17:43:40,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 17:43:40,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 17:43:40,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 17:43:40,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 17:43:40,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 17:43:40,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 17:43:40,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 17:43:40,878 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 17:43:40,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 17:43:40,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 17:43:40,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 17:43:40,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 17:43:40,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 17:43:40,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 17:43:40,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 17:43:40,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 17:43:40,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-03 17:43:40,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 17:43:40,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 17:43:40,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 17:43:40,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 853868a88f6c6643cd6d627e66ad7d81e22e5804 [2020-12-03 17:43:41,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 17:43:41,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 17:43:41,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 17:43:41,316 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 17:43:41,317 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 17:43:41,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/sine_1.i [2020-12-03 17:43:41,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88b76edc/8429fe5a8e414c17b5330e006af5d221/FLAG0cba50723 [2020-12-03 17:43:42,126 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 17:43:42,126 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_1.i [2020-12-03 17:43:42,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88b76edc/8429fe5a8e414c17b5330e006af5d221/FLAG0cba50723 [2020-12-03 17:43:42,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88b76edc/8429fe5a8e414c17b5330e006af5d221 [2020-12-03 17:43:42,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 17:43:42,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 17:43:42,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 17:43:42,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 17:43:42,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 17:43:42,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413ef4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42, skipping insertion in model container [2020-12-03 17:43:42,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 17:43:42,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 17:43:42,677 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_1.i[1143,1156] [2020-12-03 17:43:42,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 17:43:42,694 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 17:43:42,718 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_1.i[1143,1156] [2020-12-03 17:43:42,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 17:43:42,735 INFO L208 MainTranslator]: Completed translation [2020-12-03 17:43:42,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42 WrapperNode [2020-12-03 17:43:42,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 17:43:42,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 17:43:42,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 17:43:42,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 17:43:42,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 17:43:42,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 17:43:42,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 17:43:42,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 17:43:42,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... [2020-12-03 17:43:42,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 17:43:42,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 17:43:42,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 17:43:42,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 17:43:42,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 17:43:42,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 17:43:42,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 17:43:42,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 17:43:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 17:43:43,159 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 17:43:43,159 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-03 17:43:43,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:43:43 BoogieIcfgContainer [2020-12-03 17:43:43,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 17:43:43,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 17:43:43,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 17:43:43,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 17:43:43,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:43:42" (1/3) ... [2020-12-03 17:43:43,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fe6eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:43:43, skipping insertion in model container [2020-12-03 17:43:43,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:42" (2/3) ... [2020-12-03 17:43:43,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fe6eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:43:43, skipping insertion in model container [2020-12-03 17:43:43,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:43:43" (3/3) ... [2020-12-03 17:43:43,193 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_1.i [2020-12-03 17:43:43,244 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 17:43:43,252 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 17:43:43,276 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 17:43:43,326 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 17:43:43,326 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 17:43:43,327 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 17:43:43,327 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 17:43:43,327 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 17:43:43,327 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 17:43:43,328 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 17:43:43,328 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 17:43:43,346 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-03 17:43:43,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 17:43:43,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 17:43:43,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 17:43:43,357 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 17:43:43,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 17:43:43,367 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2020-12-03 17:43:43,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 17:43:43,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641026013] [2020-12-03 17:43:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 17:43:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 17:43:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 17:43:43,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641026013] [2020-12-03 17:43:43,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 17:43:43,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 17:43:43,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891111402] [2020-12-03 17:43:43,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 17:43:43,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-03 17:43:43,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 17:43:43,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 17:43:43,652 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2020-12-03 17:43:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 17:43:43,674 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-12-03 17:43:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 17:43:43,676 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-03 17:43:43,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 17:43:43,697 INFO L225 Difference]: With dead ends: 19 [2020-12-03 17:43:43,701 INFO L226 Difference]: Without dead ends: 7 [2020-12-03 17:43:43,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 17:43:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-03 17:43:43,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-03 17:43:43,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-03 17:43:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-12-03 17:43:43,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2020-12-03 17:43:43,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 17:43:43,758 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-12-03 17:43:43,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 17:43:43,760 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-12-03 17:43:43,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 17:43:43,760 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 17:43:43,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 17:43:43,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 17:43:43,761 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 17:43:43,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 17:43:43,765 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2020-12-03 17:43:43,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-03 17:43:43,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082184474] [2020-12-03 17:43:43,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 17:43:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 17:43:43,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 17:43:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 17:43:43,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 17:43:43,899 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-03 17:43:43,900 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 17:43:43,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 17:43:43,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:43:43 BoogieIcfgContainer [2020-12-03 17:43:43,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 17:43:43,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 17:43:43,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 17:43:43,934 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 17:43:43,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:43:43" (3/4) ... [2020-12-03 17:43:43,938 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-03 17:43:43,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 17:43:43,943 INFO L168 Benchmark]: Toolchain (without parser) took 1475.63 ms. Allocated memory is still 46.1 MB. Free memory was 30.7 MB in the beginning and 23.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-03 17:43:43,945 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 37.7 MB. Free memory was 20.5 MB in the beginning and 20.4 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:43:43,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.02 ms. Allocated memory is still 46.1 MB. Free memory was 30.5 MB in the beginning and 20.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 17:43:43,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 46.1 MB. Free memory was 20.7 MB in the beginning and 19.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:43:43,951 INFO L168 Benchmark]: Boogie Preprocessor took 44.76 ms. Allocated memory is still 46.1 MB. Free memory was 31.2 MB in the beginning and 30.4 MB in the end (delta: 884.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:43:43,952 INFO L168 Benchmark]: RCFGBuilder took 340.40 ms. Allocated memory is still 46.1 MB. Free memory was 30.4 MB in the beginning and 20.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-03 17:43:43,954 INFO L168 Benchmark]: TraceAbstraction took 762.46 ms. Allocated memory is still 46.1 MB. Free memory was 19.7 MB in the beginning and 24.0 MB in the end (delta: -4.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:43:43,956 INFO L168 Benchmark]: Witness Printer took 5.42 ms. Allocated memory is still 46.1 MB. Free memory was 24.0 MB in the beginning and 23.7 MB in the end (delta: 368.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:43:43,975 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 37.7 MB. Free memory was 20.5 MB in the beginning and 20.4 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.02 ms. Allocated memory is still 46.1 MB. Free memory was 30.5 MB in the beginning and 20.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 46.1 MB. Free memory was 20.7 MB in the beginning and 19.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.76 ms. Allocated memory is still 46.1 MB. Free memory was 31.2 MB in the beginning and 30.4 MB in the end (delta: 884.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 340.40 ms. Allocated memory is still 46.1 MB. Free memory was 30.4 MB in the beginning and 20.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 762.46 ms. Allocated memory is still 46.1 MB. Free memory was 19.7 MB in the beginning and 24.0 MB in the end (delta: -4.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.42 ms. Allocated memory is still 46.1 MB. Free memory was 24.0 MB in the beginning and 23.7 MB in the end (delta: 368.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-54a68f4 [2020-12-03 17:43:46,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 17:43:46,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 17:43:46,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 17:43:46,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 17:43:46,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 17:43:46,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 17:43:46,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 17:43:46,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 17:43:46,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 17:43:46,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 17:43:46,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 17:43:46,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 17:43:46,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 17:43:46,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 17:43:46,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 17:43:46,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 17:43:46,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 17:43:46,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 17:43:46,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 17:43:46,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 17:43:46,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 17:43:46,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 17:43:46,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 17:43:46,725 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 17:43:46,725 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 17:43:46,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 17:43:46,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 17:43:46,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 17:43:46,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 17:43:46,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 17:43:46,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 17:43:46,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 17:43:46,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 17:43:46,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 17:43:46,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 17:43:46,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 17:43:46,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 17:43:46,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 17:43:46,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 17:43:46,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 17:43:46,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-03 17:43:46,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 17:43:46,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 17:43:46,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 17:43:46,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 17:43:46,817 INFO L138 SettingsManager]: * Use SBE=true [2020-12-03 17:43:46,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 17:43:46,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 17:43:46,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 17:43:46,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 17:43:46,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 17:43:46,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 17:43:46,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 17:43:46,820 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 17:43:46,820 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 17:43:46,821 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 17:43:46,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 17:43:46,821 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 17:43:46,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 17:43:46,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 17:43:46,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 17:43:46,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 17:43:46,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 17:43:46,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 17:43:46,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 17:43:46,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 17:43:46,824 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-03 17:43:46,825 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 17:43:46,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 17:43:46,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 17:43:46,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 17:43:46,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 853868a88f6c6643cd6d627e66ad7d81e22e5804 [2020-12-03 17:43:47,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 17:43:47,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 17:43:47,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 17:43:47,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 17:43:47,314 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 17:43:47,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/sine_1.i [2020-12-03 17:43:47,413 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574c03a18/cd97d39de8304df4a226e199d7577b2a/FLAG5cc2a8a19 [2020-12-03 17:43:48,129 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 17:43:48,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_1.i [2020-12-03 17:43:48,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574c03a18/cd97d39de8304df4a226e199d7577b2a/FLAG5cc2a8a19 [2020-12-03 17:43:48,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/574c03a18/cd97d39de8304df4a226e199d7577b2a [2020-12-03 17:43:48,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 17:43:48,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 17:43:48,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 17:43:48,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 17:43:48,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 17:43:48,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfa763e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48, skipping insertion in model container [2020-12-03 17:43:48,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 17:43:48,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 17:43:48,724 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_1.i[1143,1156] [2020-12-03 17:43:48,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 17:43:48,751 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 17:43:48,771 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/sine_1.i[1143,1156] [2020-12-03 17:43:48,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 17:43:48,792 INFO L208 MainTranslator]: Completed translation [2020-12-03 17:43:48,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48 WrapperNode [2020-12-03 17:43:48,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 17:43:48,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 17:43:48,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 17:43:48,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 17:43:48,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 17:43:48,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 17:43:48,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 17:43:48,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 17:43:48,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... [2020-12-03 17:43:48,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 17:43:48,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 17:43:48,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 17:43:48,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 17:43:48,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 17:43:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 17:43:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 17:43:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 17:43:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 17:43:51,737 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 17:43:51,738 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-03 17:43:51,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:43:51 BoogieIcfgContainer [2020-12-03 17:43:51,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 17:43:51,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 17:43:51,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 17:43:51,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 17:43:51,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 05:43:48" (1/3) ... [2020-12-03 17:43:51,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8da926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:43:51, skipping insertion in model container [2020-12-03 17:43:51,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:43:48" (2/3) ... [2020-12-03 17:43:51,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8da926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:43:51, skipping insertion in model container [2020-12-03 17:43:51,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:43:51" (3/3) ... [2020-12-03 17:43:51,750 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_1.i [2020-12-03 17:43:51,768 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 17:43:51,772 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 17:43:51,787 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 17:43:51,819 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 17:43:51,819 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 17:43:51,819 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 17:43:51,820 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 17:43:51,820 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 17:43:51,820 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 17:43:51,820 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 17:43:51,821 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 17:43:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-03 17:43:51,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 17:43:51,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 17:43:51,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 17:43:51,854 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 17:43:51,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 17:43:51,862 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2020-12-03 17:43:51,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 17:43:51,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1253620227] [2020-12-03 17:43:51,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-03 17:43:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 17:43:52,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-03 17:43:52,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 17:43:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 17:43:52,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 17:43:52,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1253620227] [2020-12-03 17:43:52,487 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 17:43:52,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 17:43:52,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752111625] [2020-12-03 17:43:52,494 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 17:43:52,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-03 17:43:52,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 17:43:52,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 17:43:52,513 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2020-12-03 17:43:52,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 17:43:52,530 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-12-03 17:43:52,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 17:43:52,532 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-03 17:43:52,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 17:43:52,542 INFO L225 Difference]: With dead ends: 19 [2020-12-03 17:43:52,542 INFO L226 Difference]: Without dead ends: 7 [2020-12-03 17:43:52,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 17:43:52,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-03 17:43:52,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-03 17:43:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-03 17:43:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-12-03 17:43:52,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2020-12-03 17:43:52,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 17:43:52,581 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-12-03 17:43:52,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 17:43:52,582 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-12-03 17:43:52,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 17:43:52,582 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 17:43:52,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 17:43:52,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 17:43:52,784 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 17:43:52,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 17:43:52,786 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2020-12-03 17:43:52,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-03 17:43:52,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710354952] [2020-12-03 17:43:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-03 17:43:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 17:43:55,274 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 17:54:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 17:54:34,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 17:54:35,100 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-03 17:54:35,100 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 17:54:35,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 17:54:35,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:54:35 BoogieIcfgContainer [2020-12-03 17:54:35,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 17:54:35,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 17:54:35,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 17:54:35,329 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 17:54:35,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:43:51" (3/4) ... [2020-12-03 17:54:35,332 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 17:54:35,373 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-03 17:54:35,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 17:54:35,376 INFO L168 Benchmark]: Toolchain (without parser) took 646899.54 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 29.0 MB in the end (delta: -7.7 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-12-03 17:54:35,377 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 44.0 MB. Free memory is still 28.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:54:35,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.66 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 22.0 MB in the end (delta: -755.2 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-03 17:54:35,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.30 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 20.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 17:54:35,380 INFO L168 Benchmark]: Boogie Preprocessor took 30.93 ms. Allocated memory is still 44.0 MB. Free memory was 20.5 MB in the beginning and 19.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:54:35,381 INFO L168 Benchmark]: RCFGBuilder took 2869.90 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.2 MB in the beginning and 28.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-03 17:54:35,382 INFO L168 Benchmark]: TraceAbstraction took 643585.99 ms. Allocated memory is still 54.5 MB. Free memory was 28.1 MB in the beginning and 30.6 MB in the end (delta: -2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:54:35,383 INFO L168 Benchmark]: Witness Printer took 44.87 ms. Allocated memory is still 54.5 MB. Free memory was 30.6 MB in the beginning and 29.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 17:54:35,387 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 44.0 MB. Free memory is still 28.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.66 ms. Allocated memory is still 44.0 MB. Free memory was 21.2 MB in the beginning and 22.0 MB in the end (delta: -755.2 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.30 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 20.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.93 ms. Allocated memory is still 44.0 MB. Free memory was 20.5 MB in the beginning and 19.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2869.90 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.2 MB in the beginning and 28.3 MB in the end (delta: -9.2 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 643585.99 ms. Allocated memory is still 54.5 MB. Free memory was 28.1 MB in the beginning and 30.6 MB in the end (delta: -2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 44.87 ms. Allocated memory is still 54.5 MB. Free memory was 30.6 MB in the beginning and 29.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. VerificationResult: UNSAFE, OverallTime: 643.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 1 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 proved your program to be incorrect! Received shutdown request...