./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6bc1038ca8efd0f96b9908fab068be8086a547e37f42c19a7cedaa5031052775 ................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6bc1038ca8efd0f96b9908fab068be8086a547e37f42c19a7cedaa5031052775 .................................................................................................................................................................................................................................................................................................. 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-b2eff8b [2021-10-29 05:06:53,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:06:53,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:06:53,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:06:53,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:06:53,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:06:53,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:06:53,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:06:53,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:06:53,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:06:53,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:06:53,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:06:53,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:06:53,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:06:53,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:06:53,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:06:53,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:06:53,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:06:53,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:06:53,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:06:53,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:06:53,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:06:53,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:06:53,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:06:53,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:06:53,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:06:53,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:06:53,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:06:53,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:06:53,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:06:53,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:06:53,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:06:53,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:06:53,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:06:53,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:06:53,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:06:53,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:06:53,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:06:53,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:06:53,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:06:53,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:06:53,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:06:53,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:06:53,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:06:53,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:06:53,865 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:06:53,865 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:06:53,866 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:06:53,875 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:06:53,875 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:06:53,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:06:53,876 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:06:53,883 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:06:53,884 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:06:53,884 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:06:53,884 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:06:53,885 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:06:53,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:06:53,886 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:06:53,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:06:53,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:06:53,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:06:53,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:06:53,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:06:53,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:06:53,888 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:06:53,888 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:06:53,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:06:53,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:06:53,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:06:53,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:06:53,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:06:53,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:06:53,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:06:53,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:06:53,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:06:53,892 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:06:53,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:06:53,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:06:53,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:06:53,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:06:53,893 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bc1038ca8efd0f96b9908fab068be8086a547e37f42c19a7cedaa5031052775 [2021-10-29 05:06:54,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:06:54,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:06:54,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:06:54,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:06:54,247 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:06:54,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-29 05:06:54,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data/67fdc00a2/875ec3469fb2465bb05886e25f59a0c3/FLAG5b34e40ed [2021-10-29 05:06:54,811 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:06:54,811 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-29 05:06:54,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data/67fdc00a2/875ec3469fb2465bb05886e25f59a0c3/FLAG5b34e40ed [2021-10-29 05:06:55,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data/67fdc00a2/875ec3469fb2465bb05886e25f59a0c3 [2021-10-29 05:06:55,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:06:55,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:06:55,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:06:55,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:06:55,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:06:55,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cac7bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55, skipping insertion in model container [2021-10-29 05:06:55,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:06:55,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:06:55,407 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-29 05:06:55,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:06:55,419 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:06:55,435 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-29 05:06:55,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:06:55,449 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:06:55,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55 WrapperNode [2021-10-29 05:06:55,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:06:55,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:06:55,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:06:55,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:06:55,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:06:55,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:06:55,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:06:55,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:06:55,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:06:55,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:06:55,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:06:55,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:06:55,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (1/1) ... [2021-10-29 05:06:55,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:06:55,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:06:55,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:06:55,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:06:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:06:55,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:06:55,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:06:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:06:55,834 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:06:55,835 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 05:06:55,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:55 BoogieIcfgContainer [2021-10-29 05:06:55,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:06:55,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:06:55,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:06:55,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:06:55,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:06:55" (1/3) ... [2021-10-29 05:06:55,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4adb6ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:06:55, skipping insertion in model container [2021-10-29 05:06:55,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:55" (2/3) ... [2021-10-29 05:06:55,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4adb6ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:06:55, skipping insertion in model container [2021-10-29 05:06:55,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:55" (3/3) ... [2021-10-29 05:06:55,846 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2021-10-29 05:06:55,851 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:06:55,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:06:55,898 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:06:55,904 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, mAutomataTypeConcurrency=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 [2021-10-29 05:06:55,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:06:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2021-10-29 05:06:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 05:06:55,922 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:55,923 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-29 05:06:55,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:06:55,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:55,929 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2021-10-29 05:06:55,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:55,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500668303] [2021-10-29 05:06:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:55,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:06:56,036 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:06:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:06:56,074 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:06:56,076 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:06:56,077 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:06:56,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:06:56,083 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 05:06:56,086 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:06:56,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:06:56 BoogieIcfgContainer [2021-10-29 05:06:56,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:06:56,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:06:56,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:06:56,103 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:06:56,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:55" (3/4) ... [2021-10-29 05:06:56,107 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:06:56,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:06:56,109 INFO L168 Benchmark]: Toolchain (without parser) took 918.31 ms. Allocated memory is still 148.9 MB. Free memory was 112.6 MB in the beginning and 97.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:56,110 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 129.9 MB in the beginning and 129.7 MB in the end (delta: 160.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:06:56,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.40 ms. Allocated memory is still 148.9 MB. Free memory was 112.3 MB in the beginning and 125.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:56,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.64 ms. Allocated memory is still 148.9 MB. Free memory was 125.2 MB in the beginning and 123.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:06:56,112 INFO L168 Benchmark]: Boogie Preprocessor took 19.30 ms. Allocated memory is still 148.9 MB. Free memory was 123.9 MB in the beginning and 123.1 MB in the end (delta: 734.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:56,113 INFO L168 Benchmark]: RCFGBuilder took 334.54 ms. Allocated memory is still 148.9 MB. Free memory was 123.1 MB in the beginning and 112.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:56,114 INFO L168 Benchmark]: TraceAbstraction took 262.73 ms. Allocated memory is still 148.9 MB. Free memory was 111.3 MB in the beginning and 98.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:56,114 INFO L168 Benchmark]: Witness Printer took 4.64 ms. Allocated memory is still 148.9 MB. Free memory is still 98.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:06:56,118 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 148.9 MB. Free memory was 129.9 MB in the beginning and 129.7 MB in the end (delta: 160.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.40 ms. Allocated memory is still 148.9 MB. Free memory was 112.3 MB in the beginning and 125.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.64 ms. Allocated memory is still 148.9 MB. Free memory was 125.2 MB in the beginning and 123.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.30 ms. Allocated memory is still 148.9 MB. Free memory was 123.9 MB in the beginning and 123.1 MB in the end (delta: 734.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 334.54 ms. Allocated memory is still 148.9 MB. Free memory was 123.1 MB in the beginning and 112.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 262.73 ms. Allocated memory is still 148.9 MB. Free memory was 111.3 MB in the beginning and 98.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.64 ms. Allocated memory is still 148.9 MB. Free memory is still 98.0 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 28]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.001f && result >= -1.001f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-10-29 05:06:56,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/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-b2eff8b [2021-10-29 05:06:58,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:06:58,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:06:58,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:06:58,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:06:58,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:06:58,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:06:58,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:06:58,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:06:58,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:06:58,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:06:58,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:06:58,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:06:58,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:06:58,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:06:58,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:06:58,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:06:58,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:06:58,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:06:58,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:06:58,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:06:58,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:06:58,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:06:58,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:06:58,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:06:58,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:06:58,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:06:58,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:06:58,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:06:58,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:06:58,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:06:58,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:06:58,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:06:58,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:06:58,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:06:58,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:06:58,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:06:58,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:06:58,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:06:58,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:06:58,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:06:58,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:06:58,728 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:06:58,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:06:58,729 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:06:58,729 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:06:58,730 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:06:58,730 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:06:58,730 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:06:58,730 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:06:58,731 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:06:58,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:06:58,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:06:58,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:06:58,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:06:58,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:06:58,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:06:58,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:06:58,734 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:06:58,735 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:06:58,735 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:06:58,735 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:06:58,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:06:58,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:06:58,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:06:58,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:06:58,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:06:58,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:06:58,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:06:58,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:06:58,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:06:58,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:06:58,738 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:06:58,738 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:06:58,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:06:58,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:06:58,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:06:58,739 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bc1038ca8efd0f96b9908fab068be8086a547e37f42c19a7cedaa5031052775 [2021-10-29 05:06:59,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:06:59,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:06:59,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:06:59,175 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:06:59,176 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:06:59,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-29 05:06:59,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data/ea237add2/7ee3f76158734b21a805f896e9437a66/FLAGe53357d63 [2021-10-29 05:06:59,807 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:06:59,808 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-29 05:06:59,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data/ea237add2/7ee3f76158734b21a805f896e9437a66/FLAGe53357d63 [2021-10-29 05:07:00,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/data/ea237add2/7ee3f76158734b21a805f896e9437a66 [2021-10-29 05:07:00,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:07:00,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:07:00,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:07:00,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:07:00,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:07:00,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e56d45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00, skipping insertion in model container [2021-10-29 05:07:00,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:07:00,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:07:00,364 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-29 05:07:00,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:07:00,379 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:07:00,396 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-29 05:07:00,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:07:00,411 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:07:00,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00 WrapperNode [2021-10-29 05:07:00,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:07:00,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:07:00,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:07:00,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:07:00,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:07:00,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:07:00,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:07:00,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:07:00,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:07:00,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:07:00,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:07:00,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:07:00,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (1/1) ... [2021-10-29 05:07:00,536 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:07:00,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:07:00,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:07:00,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:07:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:07:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:07:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:07:00,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:07:03,038 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:07:03,039 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-29 05:07:03,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:03 BoogieIcfgContainer [2021-10-29 05:07:03,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:07:03,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:07:03,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:07:03,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:07:03,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:07:00" (1/3) ... [2021-10-29 05:07:03,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1671b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:07:03, skipping insertion in model container [2021-10-29 05:07:03,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:00" (2/3) ... [2021-10-29 05:07:03,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1671b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:07:03, skipping insertion in model container [2021-10-29 05:07:03,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:03" (3/3) ... [2021-10-29 05:07:03,049 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2021-10-29 05:07:03,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:07:03,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:07:03,108 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:07:03,115 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, mAutomataTypeConcurrency=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 [2021-10-29 05:07:03,115 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:07:03,127 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) [2021-10-29 05:07:03,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:07:03,132 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:03,133 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:07:03,133 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:07:03,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:03,138 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-10-29 05:07:03,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:03,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160324210] [2021-10-29 05:07:03,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:03,152 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:03,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:03,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:03,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:07:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:03,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:07:03,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:03,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:03,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:03,865 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:03,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160324210] [2021-10-29 05:07:03,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160324210] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:03,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:03,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:07:03,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949019421] [2021-10-29 05:07:03,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:07:03,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:03,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:07:03,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:07:03,885 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) [2021-10-29 05:07:03,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:03,906 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-29 05:07:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:07:03,907 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 [2021-10-29 05:07:03,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:03,913 INFO L225 Difference]: With dead ends: 19 [2021-10-29 05:07:03,913 INFO L226 Difference]: Without dead ends: 7 [2021-10-29 05:07:03,916 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:07:03,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-29 05:07:03,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-29 05:07:03,941 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) [2021-10-29 05:07:03,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-10-29 05:07:03,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-10-29 05:07:03,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:03,943 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-10-29 05:07:03,943 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) [2021-10-29 05:07:03,943 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-10-29 05:07:03,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:07:03,943 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:03,944 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:07:03,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:04,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:04,163 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:07:04,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-10-29 05:07:04,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:04,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164186523] [2021-10-29 05:07:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:04,165 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:04,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:04,166 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:04,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:15:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:15:40,556 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:15:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:15:49,045 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 05:15:49,046 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:15:49,047 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:15:49,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:15:49,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:15:49,251 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:15:49,254 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:15:49,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:15:49 BoogieIcfgContainer [2021-10-29 05:15:49,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:15:49,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:15:49,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:15:49,273 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:15:49,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:03" (3/4) ... [2021-10-29 05:15:49,275 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:15:49,308 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:15:49,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:15:49,310 INFO L168 Benchmark]: Toolchain (without parser) took 529153.51 ms. Allocated memory is still 75.5 MB. Free memory was 56.9 MB in the beginning and 46.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:15:49,311 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 75.5 MB. Free memory was 55.4 MB in the beginning and 55.4 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:15:49,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.94 ms. Allocated memory is still 75.5 MB. Free memory was 56.8 MB in the beginning and 46.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:15:49,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.00 ms. Allocated memory is still 75.5 MB. Free memory was 46.5 MB in the beginning and 58.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:15:49,312 INFO L168 Benchmark]: Boogie Preprocessor took 51.37 ms. Allocated memory is still 75.5 MB. Free memory was 58.0 MB in the beginning and 56.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:15:49,313 INFO L168 Benchmark]: RCFGBuilder took 2514.41 ms. Allocated memory is still 75.5 MB. Free memory was 56.8 MB in the beginning and 47.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:15:49,314 INFO L168 Benchmark]: TraceAbstraction took 526229.38 ms. Allocated memory is still 75.5 MB. Free memory was 47.1 MB in the beginning and 48.2 MB in the end (delta: -1.1 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:15:49,314 INFO L168 Benchmark]: Witness Printer took 35.67 ms. Allocated memory is still 75.5 MB. Free memory was 48.2 MB in the beginning and 46.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:15:49,318 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 75.5 MB. Free memory was 55.4 MB in the beginning and 55.4 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.94 ms. Allocated memory is still 75.5 MB. Free memory was 56.8 MB in the beginning and 46.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.00 ms. Allocated memory is still 75.5 MB. Free memory was 46.5 MB in the beginning and 58.0 MB in the end (delta: -11.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.37 ms. Allocated memory is still 75.5 MB. Free memory was 58.0 MB in the beginning and 56.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2514.41 ms. Allocated memory is still 75.5 MB. Free memory was 56.8 MB in the beginning and 47.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 526229.38 ms. Allocated memory is still 75.5 MB. Free memory was 47.1 MB in the beginning and 48.2 MB in the end (delta: -1.1 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. * Witness Printer took 35.67 ms. Allocated memory is still 75.5 MB. Free memory was 48.2 MB in the beginning and 46.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.001f && result >= -1.001f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 526.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 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, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 516.8s SatisfiabilityAnalysisTime, 0.1s 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! [2021-10-29 05:15:49,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c47aecd4-7db3-428f-9756-f28db672f20d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...